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' - ^ DICTIONARY MEDICAL TERMINOLOGY DENTAL SURGERY. J] DICTIONARY MEDICAL TERMINOLOGY, DENTAL SURGERY, AND THE COLLATERAL -SCIENCES. BY CHAPIN A, ^HARRIS, M.D., D.D.S., Professor of the Principles of Dental Surgery in the Baltimore College; Member of the American Medical Association; Member of the Medico-Cliirurgical Faculty of Maryland; Author of Principles and Practice of Dental Surgery, die. dc. THIRD EDITION, CAREFULLY REVISED AND ENLARGED, BY FERDINAND J. S. GORGAS, M.D., D.D.S., Professor of Dental Surgery in the Baltimore College, and Vice-President of the Association of the Colleges of Dentistry. PHILADELPHIA: LINDSAY & BLAKISTON 1867. Entered according to Act of Congress, in the year 1867, By LINDSAY & BLAKISTON, In the Clerk's Office of the District Court of the United States for the Eastern District of Pennsylrania. CAXTOS PRESS OF SHERMAN 4 CO. PHILADELPHIA. TO ELEAZAR PARMLY, M.D., D.D.S., LATE PROVOST OF THE BALTIMORE COLLEGE OF DENTAL SURGERY, AS A TOKEN OF ESTEEM FOR GREAT PROFESSIONAL AND PRIVATE WORTH, AND AS A TRIBUTE 01" AFFECTIONATE REGARD, THIS WOEK BY HIS FRIEND, THE AUTHOR. PREFACE TO THE THIRD EDITION. In the preface to the second edition of this work sufficient has been said, by its lamented author, of its objects, and the sources from which the materials composing it were obtained. Since the death of Prof. Chapin A. Harris no new edition of the Dictionary has been published, although the want of one has long been felt, not alone by the dental practitioner, but by the dental student. To supply this want has been the chief object of the editor, and in fulfilling it, he has endeavored to make such corrections and additions, as the rapid progress of Dental and the Collateral Sciences demanded. These additions and corrections are, necessarily, in a work of this kind, scattered through its text, and as it involves many details, it is probable some errors may be found, for which it is to be hoped the diffi- culties attending its progress will form some apology. One great difficulty has been to prevent the work from ex- ceeding the limits of one volume, and for this reason many ar- ticles have necessarily been condensed. Between two and three thousand new words have been added to the present edition, and additions and corrections made to the definitions of many others. The doses of the more promi- nent medicinal agents have been added, and it is hoped that the work will be found worthy of its title. Vlll PREFACE TO THE THIRD EDITION. Many of the old formulae, which have not been sanctioned by. an enlarged experience, have been omitted, principally those of powders, pastes, and washes for the teeth and gums, while others have been retained for their intrinsic merits. As the description of the treatment of many of the diseases of the dental organs, and the manner of performing certain operations, is the same in the former editions as in the au- thor's Principles and Practice of Dental Surgery, such have been omitted, and reference made to the work in which they are contained. The intention of the editor has been to do justice to all, and he wishes to express the obligations he is under for a number of articles describing recent inventions, the manner of preparing certain materials, &c. All the best works accessible to him, and relating to such subjects as are essential to a work of this kind, have been con- sulted, and free use made of them. His acknowledgments are due to Dunglison's and Hoblyn's Medical Dictionaries, Thomas' and Cleaveland's Pronouncing Medical Dictionaries, "Wood and Bache's U. S. Dispensatory, Mayne's Expository Lexicon, and Ure's Dictionary of the Arts. F. J. S. Gorgas. Baltimore, 1867. PREFACE TO THE SECOND EDITION. The steady and constantly increasing demand for this work having long since exhausted the first edition, the author is en- couraged to believe that he was not altogether mistaken in his opinion that a Dictionary containing satisfactory definitions of the words and technicalities belonging to Dental Surgery, as well as to the other branches of Medicine and to the Collateral Sciences, was needed. But in the preparation of the first edition he omitted many of the terms belonging to the last-mentioned departments of science, fearing they might be regarded as out of place in a lexicon designed principally for the student and prac- titioner of Dentistry. Subsequent reflection has convinced him that a more extended view of the subject was necessary, since the scope of professional education for the Dentist has become so widened that general Medicine and Collateral Science are now, to a considerable extent, embraced in the curriculum of Dental study. He has, therefore, introduced into the present edition, not only the words and phrases purposely omitted in the first, but also those that have subsequently been added to the literature of the above-mentioned department of science, thus making it a complete Dictionary of Medicine as well as of Dental Surgery. X PREFACE TO THE SECOND EDITION. The present edition contains about eight thousand more words than the first. The introduction of these without very greatly increasing its size, which the author was anxious to avoid, rendered it necessary to rewrite and compress the heavier and more elaborate articles into much narrower limits than were originally assigned to them, and to strike out the Biblio- graphical and the Biographical departments altogether. The last was done the more willingly, as a work embracing these subjects, by a very able pen, has already been announced as in preparation. The character of the book in this respect being changed, a corresponding alteration of title became necessary. All the words, technicalities, and other subjects belonging to Dental Surgery proper, have been retained, and all new terms, descriptions of subsequent discoveries, and improvements in the art and science, have been carefully added. Numerous syno- nyms have also been introduced, and it is believed that no important word, in any of the specialties of Medicine, which has at all passed into general use, has been refused a place and a minute and careful definition in the present edition of the work. The author has, of course, as stated in the preface to the first edition, made free use of the various Dictionaries of Medicine, Science, and Art ; among which he would particularly mention, Hooper's, Cooper's, Dungiison's, Gardener's, Palmer's, Hoblyn's, Motherby's, the first three hundred pages of Mayne's Expository Lexicon, now in progress of publication ; the French Dictionary of Medicine, Surgery, Pharmacy, Physics, Chemistry, and Natu- ral History ; Brande's Encyclopaedia ; lire's Dictionary of the Arts, and Ogilvie's Imperial Dictionary. It was his intention to give due credit to each author for all original matter taken PREFACE TO THE SECOND EDITION. XI from his pages, but this was soon found to be impracticable, in- asmuch as a very superficial comparison of the several works of the kind, in our own and other languages, served to show that definitions had been considered common property, and transfer- red from one work to another without acknowledgment, until the paternity was beyond satisfactory ascertainment. He has, therefore, availed himself of the common privilege which seems to have been claimed by all lexicographers who have preceded him. For the definitions of the terms belonging to general Medicine and the Collateral Sciences, he claims no special origi- nality, although where alterations seemed necessary he has not hesitated to make them, and in all instances he has endeavored to be as concise as possible, and in most cases to give the defini- tion of each word in immediate connection with it, without referring first to one, and then to another and another synonym for it, as is frequently done by most lexicographers. In these departments of the work he has confined himself, for the most part, to mere definitions, but on all subjects connected with Den- tal Surgery proper, as well as with the anatomical structures, diseases, treatment, and operations on the mouth and adjacent parts, this Dictionary will be found very full. It also contains many words belonging to the literature of general Medicine not found in other Dictionaries. Besides the works already referred to, the author has availed himself of the best standard authorities in all the departments of Science and Art, the terms, phrases, and technicalities of which this volume professes to contain. In short, he has spared neither pains nor labor to make the work desirable and useful. To what extent his efforts will prove successful, remains for others to determine. Xll PREFACE TO THE SECOND EDITION. While the book was passing through the press, the author re- ceived many useful suggestions and much valuable aid from Professors A. S. Piggot and W. R. Handy, to whom he begs to express, in this public manner, his most grateful acknowledg- ments. Chapin A. Harris. Baltimore, Oct. 9th, 1854. DICTIONARY MEDICAL TERMINOLOGY DENTAL SURGERY. ABB A. In some words of Greek derivation this letter is employed as a prefix, in a priv- ative sense, denoting the absence or pri- vation of anything ; as acephalous, head- less 5 aphonia, voicelessness ; aphyllous, leafless. A. or II. is an abbreviation of the Greek etvtt, ana, of each, and is used in medical prescriptions to denote that an equal quan- tity of two or more ingredients is to be taken. See Abbreviation. AAA. In Chemistry, a contraction of Amalgama, an amalgam. AB ACTUS VENDER. From ah, from, and a' go, ac'tum, to drive, to force. Abor- tion induced by art. ABALIENA'TION. From ah, from, and alie/no, aliena / tum, to estrange. The loss or failing of the senses, or of the men- tal faculties. ABAPTIS'TON. Abaptis'ta, from *, priv., and $*7r, to plunge. The old trepan, which was shaped like a truncated cone, to prevent it from suddenly plunging into the brain. Various contrivances were adapted to it to avoid this difficulty. ABARTICULA'TION. From ah, and articulus, a joint. That species of articu- lation which admits of manifest motion. See Diarthrosis and Synarthrosis. ABBREVIATION. Abbrevia'tio; from hrevis, short. In Medical Prescriptions, ABB letters, parts of words, or certain symbols, by which the thing meant is designated. Thus, A. or a a. ana', of each ingredient. Abdom. Abdomen, the belly. Abs. fehr. Absente febre, in the absence of fever. Ad, or Add. Adde, addatur, add, let there be added. Ad def. animi. Ad defectionem animi, to fainting. Ad gr. Acid. Ad gratam aciditatem, to an agreeable sourness. Ad 2 Vic. Ad duas vices. At two times, or, at twice taking. Ad lib. Ad libitum, at pleasure. Admov. Admoveatur, let it be applied. Adst. febre. Adstante febre, when the fever is on. Aggred. febre. Aggrediente febre, while the fever is coming on. Altern. horis. Alternis horis, every other hour. Alvo adst. Alvo adstricta, when the bowels are confined. Amp. Amplus, large. Anodyn. Anodynus, anodyne. Applic. Applicetur, let there be applied. Aq. Aqua, water. Aq. bull. Aqua bulliens, boiling water. Aq. dist. Aqua distillata, distilled water. Aquaferv. Aqua fervens, boiling water. ABB 18 ABB Aq.font. Aqua fontana, spring water. Aq. marin. Aqua marina, sea water. Aq.phiv. Aqua pluvialis, rain water. Aq. pur. Aqua pura, pure water. B. A. Balneum arense, a sand bath. Bahi. mar ice. Balneum rnarise, a salt water bath. Bain. tep. Balneum tepidum, a warm bath. Bain. vap. Balneum vaporis, a vapor bath. Bals. Balsamum, balsam. Bib. Bibe, drink. Bis ind. Bis indies, twice a day Bol. Bolus, a bolus. Bull. Bulliat, let it boil. Cap. Capiat, let him take. Cat. Cataplasma, a cataplasm. Cath. Catharticus, a cathartic. C. C. Cornu cervi, hartshorn. C. C. U. Cornu cervi ustum, burnt harts- horn. C. M. Cras mane, to-morrow morning. C. N. Cras nocte, to-morrow night. Cochl. Cochleare, a spoon, a spoonful. Cochl. inf. Cochleare infantis, a child's spoon. Cochl. magn. Cochleare magnum, a table- spoon. Cochl. mod. Cochleare modicum, a des- sert-spoon. Cochl. parv. Cochleare parvum, a tea- spoon. Col. Colatus, strained. Colat. Colatur, let it be strained. Colent. Colentur, let them be strained. Comp. Compositus, compound. Conf. Confectio, a confection. Cong. Congius, a gallon. Cont. Continuetur, let it be continued. Cop. Copiosus, abundant, Corl. Cortex, bark. Coq. Coque, boil. Crast. Crastinus, for to-morrow. C. V. Cras vespere, to-morrow evening. Cucurb cruent. A cupping glass. Cvj. Cujus, of which. Cujusl. Cujuslibet, of any. Cyath. thece. Cyatho these, a cup of tea. D. Dosis. A dose. Deb. spiss. Debita spissitudo, a proper consistence. Dec. Deeanta, decanted or poured off. Decub. Decubitus, lying down, going to bed. Attitude of one lying down. De d. in d. De die in diem, from day to day. Dej. alvi. Dejectiones alvi, alvine evac- uations. Dep. Depuratus, purified. Del. Detur, let it be given. Dext. lot. Dextrum latalis, right side. Dieb. alt. Diebus alternis, every other day. Dieb. tert. Diebus tertiis, every third day. Dig. Digeratur, let it be digested. Dil. Dilutus, diluted. Dim. Dimidium, one half. Dir. prop. Directione propria, with a proper direction. Dist. Distillata, distilled. Diuturn. Diuturnus, long continued. Div. Divide, divide. Donee, alv. sol. fuer. Donee alvus so- luta fuerit, until the bowels are opened. Drach. Drachma, a drachm. Ed. Edulcora, sweeten; Edulcorate. Ejusd. Ejusdem, of the same. Elect. Electuarium, electuary. Emp. Emplastrum, a plaster. Enem. Enema, a clyster. Exhib. Exhibiatur, let it be given. F. or ft. Fiat, let it be made. F. Pil. Fiat pilula, make it into a pill. F. V. S. Fiat venaesectio, bleed. Feb. dur. Febre durante, during the fever. Filt. Filtra, filter. II. Fluidus, liquid. Flor. Flores, flowers. Fol. Folium, a leaf. Fot. Fotus, a fomentation. Gr. Granum, a grain. Gtt. Gutta, a drop. Gum. Gummi, gum. H. D. Hora decubitus, at bed time. H. S. Hora somni, on retiring to rest. Ind. Indies, daily. Inf. Infusum, infusion. Inj. enem. Injiciatur enema, let a clyster be given. In. Pidm. In pulmento, in gruel. Inject. Injectio, an injection. Jul. Julepus, a julep. Lat. dol. Lateri dolenti, to the pained side. ABB 19 ABB lb. Libra, a pound weight. Lim. Limones, lemons. Liq. Liquor, liquor. Lot. Lotio, lotion. M. Misce, mix. Mac. Macera, macerate. Man. Manipulus, a handful. Min. Minimum, the 60th part of a drachm, by measure. Mist. Mistura, a mixture. Mitt. Sang. Mittatur sanguis, let blood be drawn. Mod. pro3S. Modo prsescripto, in the manner directed. Mor. sol. More solito, in the usual way. Muc. Mucilago, mucilage. N. Nocte, at night. No. Numero, in number. N. M. Nux moschata, a nutmeg. 0. Octarius, a pint. 01. Oleum, oil. 01 Lini. Oleum Lini, Linseed oil. Omn. alt. hor. Omnibus alternis horis, every other hour. Omn. hor. Omni hora, every hour. Omn. bid. Omni biduo, every two days. Omn. bih. Omni bihorio, every two hours. Omn. man. Omni mane, every morning. Omn. nod. Omni nocte, every night. 0. 0. 0. Oleum olivae optimum, best olive oil. Ov. Ovum, an egg. Ox. Oxymel, a syrup of honey and vinegar. Oz. Uncia, an ounce. P. M. Partes sequales, equal parts. Part, vie, Partitis vicibus, in divided doses. Pil. Pilula, a pill. P. r. n. Pro re nat&, as circumstances may require. P. rat. ozt. Pro ratione astatis, accord- ing to the age of the patient. Pro. pot. com. Pro potu communi, for a common drink. Prox. luc. Proxima luce, the day before. Pulv. Pulvis, powder. Q. P. Quantum placet, as much as you please. Q. S. Quantum sufficiat, as much as is sufficient. Q. V. Quantum volueris, as much as you wish. R. Recipe, take. Bad. Radix, root. Pas. Rasurae, shavings. Beet. Rectificatns, rectified. Bed. in. pulv. Redactus in pulverem, powdered. Beg. hep. Regio hepatis, in the region of the liver. Beg. limb. Regio umbilici, the umbilical region. Bepet. Repetatur, let it be repeated. S. A. Secundum artem, according to art. Sacch Saccharum, sugar. Scrob. cord. Scrobiculus cordis, the pit of the stomach. Sem. Semen, seed. Semi-dr. Semi-drachma, half a drachm. Semi-h. Semi-hora, half an hour. Seq. luce. Sequenti luce, the following day. Serv. Serva, keep ; preserve. Sesquih. Sesquihora, an hour and a half. Si op. sit. Si opus sit, if there be occa- sion. Sivir. perm. Si vires permittant; if the strength will permit. Signat. Signatura, a label ; also, signe* tur, let it be labelled. Sing. Singulorum, of each. Sol. Solutio, solution. Solv. Solve, dissolve. S. 0. S. Si opus sit, if there be occasion. Sp. Spiritus, spirit. Sq. Squama, scale. Ss. Semi, one half. St. Stet, let it stand. Subsulph. Subsulphas, a subsulphate. Subtep. Subtepidus, lukewarm. Succ. Succus, juice. Sum. Sumat, let him take. S. V. Spiritus vini, spirit of wine. S. V. R. Spiritus vini rectificatus, rec- tified spirits of wine. Syr. Syrupus, syrup. T. 0. Tinctura opii, tincture of opium. T. 0. C. Tinctura opii camphorata. Paregoric elixir. Tr. or tinct. Tinctura, tincture. Trit. Tritura, triturate. Troch. Trochiscus, a troche or lozenge* Umb. Umbilicus, the navel Ung. Unguentum, ointment. TJsq. ut liq. anim. Usque ut liquerit ani- mus, until fainting is produced. Utend. Utendus, to be used. Vent. Ventriculus, the stomach. ABD ABE V. 0. s. the yolk of an egg. V. S. Zz. Zingiber, ginger. "X. Minimum, a minim. Gr. Grana, a grain. ^. Scrupulum, a scruple. 3. Drachma, a drachm, troy. 5. „ Uncia, an ounce, troy. f. 5. Fluiduncia, a fluidounce. lb. Libra, a pound. ss. Seniissis, half; iss. one and a half. j, one ; (/, two ; iij, three ; iv, four, &c. See Prescription. ABCES. See Abscess. ABDOMEN. From abdere, to hide, because it conceals the viscera. The larg- est cavity in the body, bounded superiorly, by the diaphragm ; inferiorly, by the pelvis ; laterally and auteriorly, by an expansion of muscles ; and posteriorly, by the lumbar vertebrae. ABDOMINAL. Pertaining to the ab- domen, as the abdominal muscles, abdom- inal viscera, &c. Abdominal Regions. The abdomen is divided into three zones: 1. The epigas- tric or upper ; 2. The umbilical, or middle ; 3. The hypogastric, or lower region. Each of these is subdivided into three compart- ments or regions, a middle and two lateral. The middle or the upper, situated over the small end of the stomach, is the epigastric proper ; and the two lateral, under the car- tilages of the ribs, are the hypochondriac regions. The middle region is divided into the central or umbilical, and two lateral or lumbar regions. The lower region is divided into the central or hypogastric proper, and on each side there is an iliac or inguinal region. To the above, anatomists have added a tenth region, called the regio pubica, and ■situated on the front surface of the pubic bone. Abdominal Aor'ta. That portion of the aorta below the diaphragm. Abdom'ixal Aponeurosis. The con- joined tendons of the oblique and trans- verse muscles on the front of the abdomen. Abi)om / inal Gaxg'lia. The Semilunar ganglia. Abdom'inal Ring. The opening on each side of the abdomen, external and superior to the pubes, through which, in males, passes the spermatic cord. It is also called the Inguinal Ring. Abdom'ixalis. From abdomen, pertain- ing to the abdomen; ventral. ABVOmyOSCO'FY.Abdominoscopia; from abdomen, and a-x.o7nu, I view. Ex- amination of the abdomen for the detection of disease. ABDU'CEXT. Drawing apart or from. The sixth pair of nerves are called the nervi abducentes. See Abductor. ABDUCTION. Abductio; from abdu- cere, to separate. The action by which a limb or part is separated from the axis of the body. In Surgery, a fracture near the articular extremity of a bone in which the fragments recede from each other. Coelius Aurelianus uses this word to express a strain. ABDUCTOR, From abducere, to sepa- rate. In Anatomy, a muscle which sepa- rates the part or member to which it is at- tached from some other part. Its antago- nist is called adductor. Abductor Aurigularis. A portion of the posterior auris. Abductor Ixdicis Maxus. An inter- osseous muscle of the fore-finger. Abductor Ixdicis Pedis. A muscle of the fore-toe. Abductor Medii Digiti Pedis. A muscle of the middle toe. Abductor Miximi Digiti Maxus. A muscle of the little finger. Abductor Miximi Digiti Pedis. A muscle of the little toe. Abductor Pollicis Maxus. A muscle of the thumb. Abductor Pollicis Pedis. A muscle of the great toe. Abductor Tertii Digiti Pedis. A muscle of the foot. ABERRA'TION. Aberratio ; from ab errare, to stray; to wander from. Devi- ated from that which is natural ; irregular- ity; deviation from the healthy condition in the appearance, structure, or functions of one or more organs ; the passage of a fluid of the living body into an order of vessels not destined for it : the flow of a fluid to- wards an organ different from that to which it is ordinarily directed, as in vicarious hemorrhage ; mental alienation. In Optics, ABK 21 ABP a deviation of the rays of light from a true focus, in certain lenses, producing a dis- torted or colored image. When the image is distorted the aberration is said to be spher- ical ; when it is colored by prismatic hues, it is called a chromatic aberration. ABEVACUA'TION. A term used by some old medical writers to express a par- tial or incomplete evacuation of the faulty humors, whether by nature or by art, but by some employed to denote an immoderate evacuation. ABHAL. An Asiatic fruit, obtained from a species of cypress, supposed to be an emmenagogue. ABIES. The Fir; a genus of plants of the order Coniferce, abounding in resin. All those trees which, like the spruce, the cedar, and the larch, have their leaves soli- tary, distinct at their base, and the scales of the cone even and thin. For the species of abies, see Pinus. ABIE'TIC ACID. An acid recently dis- covered in the resin of trees of the genus Abies. ABIETFN^E. A division of the natu- ral order of coniferous plants, including the firs, pines, and araucaria-like pines, all of which have cones with many rows of scales. ABIETINE. Abietina. A resinous sub- stance obtained from the Strasburg turpen- tine. ABIETIS RESINA. Thus, or frankin- cense ; the resin of the spruce pine. ABIRRITATION. Abirritatio ; from ab, priv., and irritatio, irritation. Absence of irritation ; debility ; asthenia. ABLACTATION. Ablactio ; from a b, priv., and lacto, to give suck. Cessation of the periods of suckling, as regards -the mother. The same period with regard to the child is termed weaning. ABLA / TION. Ablatio ; from aufero, to remove. Removal or separation of a part, limb, organ, or tumor, by accident or sur- gical operation. ABLEP'SY. Ablepsia; from *, priv., and @mra>, to see. Blindness. ABLUENTS. Abluentia ; from abluere, to wash. Detergents ; cleansing remedies. ABLU'TION. Ablutio; to wash away. The act of cleansing or purifying with water. ABNORMAL. From ab, from, and norma, rule. Not conformable to rule ; irregular; contrary to the natural condition ; unnatural. ABOLFTION. Abolitio ; from abolere, to abolish. Cessation of the function of the whole, or part of the body, as the loss of sight, hearing, &c. ABOMA'SUS. Abomasvm. The fourth stomach of ruminating animals, the one from which, in calves, rennet is formed. ABOR / TION. Abortio : miscarriage ; expulsion of the foetus before the sixth month. ABORTIVE. Abortivus; from abortio, a miscarriage. In Medicine, that which has the power of exciting abortion. In Botany, plants that do not acquire their usual per- fection ; a flower only partially formed, or a seed which contains no embryo. ABORTUS. Abortion. ABRA / CHIA. From *, priv., and fy*-Xr ta>v 7 the arm. Absence of arms. ABRANCHIATE. From *, priv., and @P*yX tct ) gills. Without gills, like the earth- worm, the leech, &c; having no organs of respiration. ABRA / SION. Abrasio; from abradere, to scrape. The act of wearing or rubbing off; also, the state of a part some of which has been worn off by attrition. In Pathol- ogy, superficial ulceration, with loss of substance in shreds of the intestinal mu- cous membrane ; also, excoriation and ul- ceration of the skin. Abrasion of the Teeth. Odontotribe. Wearing away of the teeth ; gradual loss of a portion of the substance of the teeth, which may be produced either by mechan- ical or chemical causes. When by the former, it is called mechanical, and when by the latter, spontaneous abrasion. Abrasion of the Teeth, Mechanical. When the incisors and cuspidati of the upper jaw shut over the corresponding teeth of the lower, it rarely happens that much loss of substance from mechanical causes takes place : it is only in those cases where the former fall plumb upon the latter, that mechanical abrasion, in any very considera- ble degree, occurs ; but when they come together in this manner, their crowns are sometimes worn down to the gums, or at least, those occupying the anterior part of the alveolar arch. The reason of this is ABS 22 ABS obvious. When the upper and lower front teeth strike upon each other, the lateral motions of the jaw are not in the least re- stricted ; consequently the cutting edges of the incisors and points of the cuspidati, as well as the cusps of the bicuspids and molars, though not to the same extent, are subjected to an amount of friction to which they are not exposed in any of the other relationships which the upper and lower teeth sustain to each other. The wearing away of the crowns of the teeth would expose the lining membrane, but for a most curious and singular provision of nature, which consists in the gradual obliteration of the pulp cavities, by the con- version of the pulp into osteo-dentine. By this wise provision of nature, an event from which the most painful consequences would result, is prevented, so that but little incon- venience results from it, or at any rate, not until the crowns of the teeth are worn down to the gums. Abrasion of the Cutting edges of the Front Teeth, Spontaneous. Spontaneous abrasion of the cutting edges of the front teeth, is an affection of rare occurrence. It commences on the central incisors of both jaws at the same time, and from thence pro- ceeds to the lateral incisors, the cuspidati, and sometimes, though not very often, to the first bicuspids. In other respects, little or no inconvenience is experienced from it until the crowns of the affected teeth are nearly destroyed. See Harris's Dental Sur- gery. ABRUPTION. Abruptio; bom abrum- pere, to tear asunder. In Surgery, sudden separation of one part of a bone from another. AB'RUS PRECATORIUS. Jamaica wild liquorice. Its seeds, of a bright red, with a black spot, were formerly employed for necklaces and rosaries. The roots and leaves contain mucilage, and are sometimes used as demulcents. ABSCESS. Abscessus ; from abscedo, I separate from, or depart. An imposthume, or boil ; a collection of pus in the cellular tissue, or some other part, resulting from inflammation and suppuration. An abscess is acute when succeeding acute inflamma- tion, and chronic or scrofulous when result- ing from chronic or scrofulous disease ; idiopathic, when occupying the same site as the previous affection ; and symptomatic or metastatic, when occurring in a remote situ- ation. Abscesses are designated according to the part in which they are situated, as Alveolar abscess, Lumbar abscess, Mam- mary abscess, &c. ABSCESSUS. Abscess. Abscessus Lumborum. Lumbar abscess. Abscessus Mammae. Mammary abscess. Abscessus Pectoris. Empyema. Abscessus Pulmonum. Empyema. Abscessus Oculi. Hypopion. Abscessus Gangrjsnosus. Anthrax. Abscessus Capitis Sanguineus Neona- torum. Cephalaematoma. ABSCISSION. Abscissio; from absci- dere, to cut off. The excision of a morbid or superfluous part, especially of a soft part. ABSCISSIO PR^EPUTIL Circumcision. ABSIN'THATE. A salt of the absin- thic acid. ABSIN'THIA. Absinthine. The bitter uncrystallizable principle of absinthium. ABSIN'THIC ACID. Acidum absin- thicum. A peculiar acid of absinthium. ABSINTHIUM. Wormwood. See Ar- temisia. ABSOLUTE ALCOHOL. Alcohol as free from water as it can be obtained. ABSOLUTE E'THER. Sulphuric Ether freed from the small portion of alcohol and sulphurous acid it contains, by the pro- cess of rectification. ABSORBENT. Absorbens; from ab- sorbose, to suck up, to imbibe. In Anatomy, a delicate transparent vessel, which exercises the function of absorption. In Materia Medica, any medicine which destrovs acidity in the stomach and bowels, as maguesia, chalk, &c. In Surgery, that part of a water dressing which absorbs the pus as fast as it is formed. It is composed of old rags, from linen or cotton, sufficiently worn, and is placed over the sifter. See Water Dressing. Absorbent System. The vessels and glands of the body which exercise the func- tion of absorption. ABSORPTION. Absorptio. In Phys- iology, an organic function common to all things endowed with life, plants or animals : whereby the former take up from without, and the latter from the interior of their own body, the materials necessary to their suste- nance. In Chemistry, the action of certain ACA 23 ACC solids and liquids in taking up gases and vapors, which may or may not enter into chemical composition with the absorbent. Absorption Interstitial. The func- tion by which the particles of the tissue filling the meshes of the capillary network are removed, as in the pupillary membrane of the foetus, and in the development of the cells in bone. Absorption Cutaneous. A function of the skin, by which substances applied to the surface of the body are taken into the circu- lation, and produce the same action as when taken internally. ABSTEMIOUS. Abstemius ; from abs, without, and temetum, wine. Abstaining from the use of wine. Also temperate living, with regard to diet, &c. ABSTERGENT. From abstergere, to cleause. Any application which cleanses the part to which it is applied ; a detergent. ABSTRACTION. From abstraho, I draw off. In Chemistry, the distillation of a liquid from any substance. ACA / CIA. Ax.*Kt*, from aw, a point. A genus of spiny trees and shrubs, with pin- nated leaves, of the order Leguminosce. Also the Pharmacopceial name for gum arabic. See Acacia Gum. Acacia Catechu. The tree which pro- duces the Catechu, or Terra Japonica. Acacia Gum. Gum Arabic, which is colorless or of a pale yellow ; it is hard, brittle, soluble in water, but not in alcohol. It is mucilaginous, and used as a demulcent and for suspending oily medicines. Acacia Vera. The Egyptian thorn, which yields the Gum Arabic. This sub- stance is also produced from other species of this genus. ACALE'PHE. The nettle. ACALYPHA. A genus of plants of the order JEuphorbiacece. Acalypha Betulina. Birch-leaved aca- lypha. The leaves have an aromatic odor, and are used in India as a stomachic in dyspepsia and cholera. Acalypha Indica. A Malabar plant pos- sessing anthelmintic properties. Acalypha Virginica. Mercury weed, found in most parts of the United States, and said to act as an expectorant and diuretic. ACAMP / SIA. From <*, and na/u7rTa>, to bend. An inflexible state of a joint. ACAN'THA. From <**», a sharp point. In Botany, a thorn or prickle of a plant. In Anatomy, the spinous process of a verte- bra, also the spina dorsi. ACAN'THUS MOL/LIS. Bear's breech. ACARDIOrL^/MIA. From «, priv., **/>/>*, the heart. A deficiency of blood in the heart. ACARDIONER'VIA. A deficiency of nervous action in the heart. ACARDIOTRO'PHIA. From a, priv., Kotphct^ and t/so», nourishment. Atrophy of the heart. ACAR / DIAC. Acardia ; from *, priv., KstpSat^ the heart. Without a heart. A / CARUS. From «, priv., and itup*, to cut, too small to see divided. A numerous genus of insects. The tick or mite. Acarus Autumna / lis. The harvest bug, or wheat insect. Acarus Domesticus. Domestic tick, found in the head and near gangrenous sores, and on dead bodies. Acards Dysenteric. Dysentery tick. Acards Folliculorum. A tick said to be found in the follicles of the skin. Acarus Scabiei. The itch tick. Acarus Siro. The cheese mite. ACATALEPSY. Acatalep'sia; from *, priv., and x.ara.h*fA@xva>, to apprehend. Un- certainty in diagnosis or prognosis. Its opposite is Catalepsia. ACATAPOSIS. From *, priv., and K*T!t7nvto 7 deglutition. Inability to swallow. ACAULES'CENT. From a, priv., and K>tvKos, a stem. In Botany, apparently without a stem. ACCELERATION. Acceleratio; from accelero, to hasten. In Physiology and Pathology, increased action of the heart and respiratory organs. ACCELERATOR URFN.E. A muscle of the penis. ACCENT. Inflection of the voice. ACCESSION. Accessio ; from accedere, I approach. The commencement of a disease, but usually restricted to the phe- nomena which signalize the recurrence of periodical diseases, as intermittent fever, comprehending their cold, hot, and sweat- ing stages. ACCESSORII WILLISII. The acces- sory nerves of Willis, so named from the ACC 24 ACE discoverer. The superior respiratory nerves, a pair arising from the spinal cord and join- ing the par vagum. ACCESSORY. Accessories ; from ac- cedere, I approach. Connected with or dependent upon any thing; helping to pro- duce an effect. In Anatomy, a name given to several auxiliary muscles and nerves, joined to other similar parts, and assisting them in their functions. In Botany, addi- tional, supernumerary. Accessory of the Parotid. A small gland which accompanies the parotid duct, and is usually a mere prolongation of the parotid itself. ACCIDENT. Accidens ; from accidere, to happen. Literally, the occurrence of an event not foreseen or expected. In Pa- thology, the unexpected occurrence of any- thing in the course of a disease not essen- tially connected with it, and hence differing from an inherent symptom or phenomenon. In Surgery, hemorrhage, erysipelas and severe pain, constitute the accidents of a wound. In Dental Surgery, an injury in- flicted upon any part of the mouth in the performance of an operation, or from the application of a remedy ; as fractures of the teeth and alveolar processes, and hemor- rhage after the extraction of teeth. The term is also applied, by French dentists, to the morbid phenomena which develop them- selves during dentition. ACCIDENTAL. Happening by chance; casual. In Morbid Anatomy, all structures developed as the consequence of disease. Accidental Colors. Ocular spectra. ACCIP'ITER. The Hawk; from accip- ere, to take. A name given to a bandage applied over the nose, from its likeness to the claw of a hawk. ACCLI'MATED. Climati assuetus ; from ad, and clima, climate. Accustomed to a climate. ACCOUCHEE. A woman who has just lain in. ACCOUCHEOIENT. Parturition: child- birth, the expulsion or extraction of the foetus from the uterus. ACCOUCHEER'. A man who practises midwifery. ACCOUCHEUSE'. A midwife. ACCRETION. Accretio ; from ad, and crescere, to increase. Growth : also, a growing together of parts naturally sepa- rate. The process by which nutrient parti- cles are added to the various tissues. ACCUM'BENT. Lying against any- thing. ACEPH'ALOBRACH'US. Acephalo- bracliia ; from a, priv., m^ax*, head, and £/>*- X lt **i arm. A foetus without head or arms. ACEPH'ALOCHEI'RUS. From *, priv., >a*|, chest. A foetus born without head or chest. ACEPH'ALUS. Acephala ; from *, priv., and KiQ*\», head. "Without a head. In Anatomy, the young of any animal born, from defect of organization, without a head. In Zoology, one of the divisions of a class of Molluscous animals, which have no head, as the oyster and mussel. A / CER. A genus of trees of the order Aceracece, the maple ; also, acrid, sharp. Acer Sacchari'xum. The sugar maple, a tall tree, from two to three feet in diame- . ter, containing a large quantity of sap in the spring of the year, from which sugar may be extracted. ACERATE. A salt of the aceric acid. ACERB'ITY. Acerbitas; from acer, sharp. A sour, bitter and astringent taste, properties met with in some kinds of unripe fruit. ACERIC ACID. A peculiar acid said to exist in the sap of the common maple. Acer campestre, in the state of acerate of lime. ACE'RIDES. From «, priv., and *»/><*, wax. A plaster without wax. ACEROSE. Acerosus ; from aevs. chaff. In Botany, chaffy; also leaves tapering to a point like a needle, as those of a pine. ACERV'ULUS CEREBRI. A mass of yellow, sandy concretions, collected under ACE 25 ACE the tela choroidea, near the posterior com- missure of the brain, after the age of pu- berty. ACES / CENT. Acescens; from acesco, to grow sour. Turning sour ; a tendency to acidity. ACETABULUM. From acetum, vine- gar, because it resembles the old saucer in which vinegar was held. A name given to the cavity which receives the head of the os femoris, or thigh bone. ACETA. Plural of Acetum. Pharma- ceutical preparation of vinegar. See Acetas. ACETAL. A colorless liquid, resem- bling ether, with a peculiar vinous odor, boiling at 200° to 204°. It is formed by the action of platinum black on the vapor of alcohol with the presence of oxygen. It was discovered by Dobereiner, who called it oxygen-ether. ACETARIOUS PLANTS. From acet- aria, a salad. Plants used for salads, as lettuce, mustard, cress, endive, &c. AC / ETAS. From acetum, vinegar. A salt formed by the union of acetic acid with an earthy, alkaline, or metallic base. An acetate. The medicinal acetates are those of ammonia, potassa, zinc, and lead. Acetas Ammonite. Acetate of ammonia. Acetas Ferri. Acetate of iron. Acetas Hydrargyrt. Acetate of mer- cury. Acetas Morphine. Acetate of morphia. Acetas Pltjmbi. Acetate of lead ; sugar of lead. Acetas Potassa. Acetate of potassa ; a salt formed by the union of potassa and acetic acid. Acetas Sodj?. Acetate of soda. Acetas Zinci. Acetate of zinc, a salt formed by the union of zinc and acetic acid. ACETATE. Acetas. A salt of acetic acid. ACET'IC. Aceticus ; from acetum, vine- gar. Belonging to vinegar. ACE / TIC ACID. Acidum aceticum. The acid of vinegar. The sour principle which exists in vinegar. It exists free and combined with bases in several vegetable products, and is the principal result of acet- ous fermentation. It unites readily with most of the earths, and acts slowly upon the teeth, increasing their sensibility, and putting them on edge. In Medicine, it is used as a rubefacient. ACE'TICA. Pharmaceutical prepara- tions, consisting of vegetable principles dis- solved in vinegar. ACETIC ETHER. See Ether Acetic. ACET'IFICATION. From acetum,snid facio, to make. The act or process of making vinegar. ACETOM'ETER. An instrument for ascertaining the strength of vinegar. ACETONE. From acetum, vinegar. Associated with Pyro-acetic spirit. Errone- ously called naphtha and wood naphtha. The term is also applied to PyroxyKic spirit. A limpid colorless liquid, having a pecu- liarly penetrating and slightly empyreumatic odor ; with a disagreeable taste, like that of peppermint. It is obtained by distilling a mixture of crystallized acetate of lead and quicklime. It has been used in phthisis pulmonalis and as an excitant in chronic bronchitis. Dose, gtt. x to gtt. xxx, di- luted with water. Formula, C 3 H 3 0. ACETONYL. The hypothetical radical of acetone. ACETO'SA. From aceo, to be sour. Rumex Acetosa ; Sorrel. ACETOSEL'LA. From acetosa, sorrel, because of the acidity of its leaves. The wood sorrel, on account of the grateful taste of its leaves, is sometimes used in salads, but the oxalic acid which it contains is ex- ceedingly hurtful to the teeth, inasmuch as it has a much stronger affinity for the lime of these organs than the phosphoric acid with which it is united. The teeth of per- sons in the country where sorrel abounds, are often injured by being frequently rubbed with its leaves for the purpose of removing stains and discolorations. ACE / TUM. From acer, sour. Vinegar ; a sour liquid, produced by fermentation. There are four varieties, viz. : wine vinegar, malt vinegar, sugar vinegar, and ivood vine- gar. Common vinegar contains less than five per cent, of pure acetic acid. Acetum Aromaticum. Aromatic vin- egar. Acetum Cantharidis. Vinegar of can- j tharides. Used as a vesicant. Acetum Colchici. Vinegar of meadow saffron. Dose, ^ss. to 3jss. Acetum Distillatum. Distilled vinegar. ACII 26 ACI AcBTUM Lobeli.e. Vinegar of lobelia. Dose. 30 to 60 drops or more. Acktum Opii. Vinegar of opium or black drop, composed of opium and dis- tilled vinegar. Dose. gtt. x, equal to one grain of opium. Acetum Scill-e. Vinegar of squills. Dos. to 5'J- ACETYL. A hypothetical compound radical, produced by the abstraction of two atoms of oxygen from ethyl, by deoxydating , processes. It derives its nature from acetic acid, which, with a series of other com- ; pounds, it pervades Aldehyde is its hy- drated oxyd. Its formula is C 4 H 3 . ACHEPLIA. From a, priv.. and x il> z; -- lip. A malformation, consisting in a defi- ciency of one or both lips. ACHEDROl'S. From c. priv.. and X a b hand. Without hands. ACHILLE'A. A genus of plants of the order Composite. Milfoil : yarrow. Achillea Age'ratum. A plant possess- ing the qualities of tansy. Achillea Atra'ta. A p'an: possessing the same or similar properties Achillea Millefolium. The common yarrow, or milfoil. Achillea Ptar / mica. Sneezewort, or bastard pellitory. ACHILLES TENDO. The strong round tendon of the gastrocnemius and soleus muscles. ACHLYS. Dimness of sight. Opacity of the cornea. A'CHOLOUS. From a, priv., and '/j'*, bile. Deficiency of bile. A'CHOR. A pointed pustule, contain- ing a light, straw-colored matter, and changing into a brown scab. Crusta lactea. A'CHORISTUS. From a. priv.. and '/jf-'-l'*, to separate. A sign or symptom which invariably accompanies a particular state of health or disease. ACH'ROA. Crusta lactea. From a. priv.. and /^:a, color. A colorless state of the skin. ACHROMATIC. From *. priv., and /ji-yi. color. A lens constructed so as to correct the refrangibility of the common lenses. ACHROMATOPSIA. From *, priv., : pw, color, and ss-t^k, to see. Inability to distinguish different colors from each other. ACHYLOSIS. From a. priv., and £d*m, juice. Deficient chylification. ACHYMOSIS. From a. and &u i; . chyme. Deficient chymification. ACICTLAR. From acicula. a little needle. In Crystallography, needle-shaped crystals, and in Botany, leaves that are long, stiff, and pointed. ACID. In common language, any liquid, solid or gaseous body, imparting to the organs of taste a sour sensation. In Chemis- try, a compound capable of neutralizing an alkali: the electro-negative compound of a salt, consisting of more than two elements. The acids constitute a very numerous class of chemical substances. They are called mineral or organic, as they are derived from inorganic, or organic bodies. The names of those formed from the same base, change in their terminations according to the quantity of oxygen they are presumed to contain. Those which terminate in ic. contain the largest proportion of oxygen : those in ous. a less amount. Those which begin with hyper, denote an excess of oxydation : those with hypo, the lowest proportion. When combined with the alkaline and other bases, they form a class of bodies called salts. ACIDFFEROUS. From acidum. an acid. &ns», to satisfy. Insatiable hunger ; canine appetite. A'CORUS. A genus of plants, of the order Aroidece. Acorus Calamus. Sweet flag ; calamus aromaticus. ACOTYLE'DON. From a, priv., and xoruk»Sa>v, a seed-lobe. Without a cotyledon ; plants which have no seed-lobes. ACOUMETER. From a K ovm, to hear, and ptTpcv, a measure. An instrument in- vented by Itard, for measuring the degrees of the sense of hearing. ACOUOPHO'NIA. Cophonia ; from *x.ova>, I hear, and *&)»», voice. Auscultic investigation from the sounds produced by percussion. ACOUSTIC. Acousticus ; from t«.ova>, I hear. Belonging to the ear, as the acous- tic nerve, acoustic medicine, &c. ACOUSTICS. The science of the cause, nature and phenomena of sounds. ACRA'LEA. From «*/>o?, extreme. The extremities, as the hands, feet, head, ears, nose, &c. ACRA'NIA. From a, priv., and xp*viov, cranium. Deficiency of a part or the whole of the cranium. ACRA / SIA. From «, priv., and n^a-tc, mixing. Wine unmixed with water. Hence drunkenness and intemperance of all sorts, whether in eating, drinking or venery. ACRATFA. From a, priv., and x/jato?, strength. Imbecility; weakness. AC / RID. From acer, sharp. Having a hot, pungent taste. ACRIMONY. Acrimonia; from acer, sharp. A quality in substances which irri- tates, corrodes, or dissolves others. ACRFSIA. From a, priv., and Kpivw, to judge. A state of disease, with regard to which no correct judgment can be formed. ACRITES. Acrita; from empires, indis- cernible ; so called because of the absence or indistiiiction of the nervous system. The lowest division of the animal kingdom, com- posed of the classes spongice, polypi, poly- gastrica, sterelmintha, and acalephce. ACROBYS'TIA. From axpes, the tip, and @va, to cover. The extremity of the prepuce. AC'RODONT. From **pov, extremity, or summit, and cJbuc, ofevoc, a tooth. Ap- plied by Owen to scaly saurii having teeth ankylosed to the summit of alveolar ridge. ACRODY / NIA. From txpe, extremity, and sePt/va, pain. A name given to an epi- demic, attended with great pain in the ten- dons, which prevailed in Paris in 1828-29. ACROLEINE. In Chemistry., a volatile oily, pungent liquid, obtained by boiling fats, but especially by the destructive distil- lation of glycerine. ACROMAN'IA. From «?, extreme, and a>y.oc, the shoulder. A process terminating the spine of the scapula. ACROM'PHALION. The middle of the navel. ACROP'ATHOS. A disease at the top of any organ or on the surface of the body. A / CROPIS. From axpoi, the extremitv, and <4, the voice. Faulty articulation, from a defect in the tongue. ACROPO'DIUM. From *Kpo ( , extremity, and nous, foot. In Zoology, the upper sur- face of the whole foot. ACROT'IC. From wqwr, summit. Dis- eases affecting the external surface of the body. ACROTERIA. The extremities of the body. ACROTERIAS'MUS. Amputation of an extremity. ACU 29 ACU ACROTISM. From *, priv., and xpoi-c?, pulse. Defect of pulse ; asphyxia. ACT^E'A. A genus of plants of the order Ranunculaceoz. Act^ea Americana. White and red cohosh, a drastic purgative. Act^ea Racemosa. Black snake-root. Act^ea Spicata. Baneberry. ACTIN'OLITE. From *kt», a ray of light. A variety of hornblende. ACTINO-CHEMISTRY. From «w, a ray of light. That department of chem- istry which treats of the action of the sun's rays. ACTINOM'ETER. From **t/», and /utrpov, a measure. An instrument to meas- ure the intensity of the sun's light. ACTION. Actio; from agere, to act The exertion of power or force; the opera tion of an active power. In Physiology the performance of a function. The func tions of the body may be divided into vol untary, involuntary and mixed. The vol untary are produced by acts of the will ; the involuntary are either mediate, through the nerves and spinal marrow, or immediate, as those of irritability ; and to the mixed belong the acts of respiration. Action Morbid. A derangement of the ordinary functions of the body. ACTIVE. Activus. That which acts or enters into action ; energetic. The term is applied to medicines and diseases. ACT / UAL. This word is applied to any- thing endued with a special property in- herent in itself. It is the reverse of poten- tial. Thus, Actual Cautery is a red-hot iron, or a fire, while a potential cautery is only a chemical caustic. The former was once much used by surgeons for the extirpation and cure of tumors and other diseases ACU'LEATE. From aculeus, a prickle. Prickly. In Botany, the surface covered with prickles, as the stem of a rose. ACUMINATE. Pointed; terminating in a point. A'CUPRES'SION. Acupressure. From acus, a needle, and premo, pressum, to press. Dr. J. Y. Simpson's plan of secur- ing against hemorrhage in wounds, or op- erations, by inserting a needle through the skin below the divided vessel, and re- turning its point to the cutaneous surface again, the ends being left out to a sufficient extent. ACUPUNCTURE. Acupunctural from acus, a needle, and punctura, a puncture. The puncturing of parts with a small needle. It is effected by passing slender needles into the part, and allowing them to remain from a few minutes to several hours, for the pur- pose of producing counter-irritation. ACUS. A needle. A / cus Cannula'ta. A trocar ; a cannu- lated needle used in surgery. A / cus Interpuncto'ria. A couching needle, used in operating on the eye. A'cus Ophthai/mica. A couching or ophthalmic needle. Acus Triquetra. A trocar; a three- cornered needle. ACUTE / . Sharp. In Pathology a sharp pain; a disease characterized by a certain degree of severity, or which is attended by violent symptoms, and runs its course in a few days. ACUTENAC'ULUM. Porte-aiguille. A needle-holder. An instrument for accurately laying hold of a needle, and giving it greater length, when it is so fine and small that it cannot be held by the fingers. It is of steel or silver, about two inches long, and through- out the whole, almost, of its length, divided into two branches, so as to form a kind of forceps capable of being closed by means of a sliding ring. Dr. Physick's modification of this instrument consists of a forceps so constructed as to hold in its extremity a needle armed with a ligature. The handles of the forceps are fastened together, tempor- arily, by a spring or catch ; and when the needle is fairly placed beneath the deep-seat- ed artery, it is disengaged from the forceps and drawn out, leaving the ligature behind, which can be tied without difficulty. Dr. Hullihen invented an instrument of this kind for passing the needle through the cleft edges of the soft palate, in the operation of staphyloraphy. ACUTENACOLUM, Dr. HuLLIHEN's. An instrument invented by Dr. S. P. Hullihen, to be used in passing the needle through the cleft edges of the soft palate in the op- eration of staphyloraphy. This instrument is composed of two parts, a staff and a slide. The staff is a small steel bar. six inches in length, two-eighths of an inch in breadth, ADA ABE and one-eighth of an inch in thickness, with an arm at the superior end, rising at a curved right angle from the staff, and half an inch long. On the external or superior side of this arm, a duplicate arm is retained bj a steel spring attachment, which brings the two arms in close contact, forming the jaws of the instrument. Between these two arms, and on the duplicature is a small groove :"::a;ei :: re:-ri-e :i: iiraaare. sai ~iea :ie ligature is pressed between the jaws of the instrument, they open and it slides to the point designated for its reception, immedi- : elow which, the jaws are perforated v> ::': i ai.e ::: 7a e ia::; ia:7:a ::' :ae irrir during the employment of the instrument in the operation. Two inches from the inferior end of the staff, a pair of rings are affixed to receive the thumb and index finger, the rings standing parallel with the staff, and siie^ajs :: :be iirerriza :: ".he araas :•:' :;i iasaraaaea:. A siiie is ::raae: :•: s:eei. e:asi in length, thickness, and breadth to the stafij made to fit the upper surface of the staff, aai :: zz:r^ — ::'a esse zz aai i:~a :a raiies 7.a;ei :a:aessaae. 7::aa:ae sa- aer;:r eai :: iae saie is a sizr: s:rai7a: sresr-sasjei aeedie. : :as:.:a ::ei ; as: ':a:k of its point, with a small notch opening to i: r::aa :ae aaper sa::7:e When the ligature has been fitted in its place of reception in the jaws of the instru- zz ea:. aai iae s7ie ai;as:ei :: 7a e s-.ar. iae slide is forced upward, the needle and jaws a;r::s:a esia :aaer. aad iae aeeiie lasses through the hole in the latter just under the 7ira:are. ~ai;a is :aaga: : -z :ie a::7a :: iae aeeiie. aai as 7ae siiie is in— z. iaia^-ari. the eye of the needle is threaded and the iizaaasre irs~a :'z:::z'z iae veiaaa. aai 7ae ia:::is:7:a :: iae si::a ::aa:7e:ei. ACYANOBLEP'SIA. From *, priv., «•««, blue, and &c*», to see. Inability to distinguish blue, from defective vision. TE SIS Inability to conceive ; bar- reaaess. ADACTYL. From *. priv., i^-na^ a digit. In Zoology } a locomotive extremity vri:i: ;-. i 7.7:., A D ' AM AX T . From *, priv., S*fut», to subdue. Diamond was formerly so named from its hardness. AD AMA^I'INE CEMENT. Aa:s:::a: used for filling teeth, consisting of finely pulverized silexor pumice-stone, mixed with an amalgam, of mercury and silver. S e e Amalgam. ADAMANTINE SPA?., lie irys-nis :■: : :raaiaaa sres: aaaae: ::: aa :ae::ai::aess, See Corundum. ADAM'S APPLE. See?:aa-:aa Aiaaai. ADDEPHA'GFA. From -J*.?, much, ?.a: :!•,», :•: eaa A -::s::: ..s b; :e7:e : ia- saiaiie :: . :: r ::: :: :-i. ADDITA'MEXTUM. A small suture s:aae7a:es i::i sd-iei :: :ae iaaal 77 i ail squamous sutures. ADDU'CEXT. Addmeeng; from ad; and duecre, to draw. A term applied in Anat- : .:: aaas7es —Li: a :e:i:ra: lie i:a::i:a of adduction. ADDUCT7L7 Tie action by which a zir. is ira~a ::~aris Le sx:s ::" :ie ": : if . or of a limb. ADDUCTOR. From ad. and tfWr*. to draw. In Anatomy, a muscle w consists in drawing the limb, or p :j i:. ::--aris :ie axis ::' iae r :i; aaeaai er :: — i . .a i: iei : ars. Adductor Beis 7 _:..:.:s. 7a T sa ::: >iia:::r :: :ae :::::, Adductor Ixdicts Pedis. The adductor ::" iae ars: ::e. Adductor Lor --t s 7 i ?:_?.: s . IV aiia:;:r :■: iae iaira. Adductor Ma: bus 7 i : : : sis. The great aiia:::r :: :ir ia.7a. Adductor Mixlmi Digiti Pedis. The adductor of the 77. 7 e toe. Adductor Pollicis Mxxus, The ad- i.::::: :■:' :ae :aaaai. A::t::;7. ?:ii:;:e Pzdis. Z'z- .. tor of the great toe. Adductor Tef.t:: i:::r: 7z: a IW adductor of the tairi toe. AI 77 TA. S,ia:iT^. ADEL'PKLA. From affc»=?. a brother. In Botany, a term applied by Linnaeus to :a:se risa:s ia ^-7i:a :ae s:aaae ; of growing singly, combine into one or mace parcels or brotherhoods. ADEMO'yiA. From */*""*. I am rrie-::s'-7 :::aiea:ri. P.esi.essaess : .a- iety of mind. ADEN. AJU. A ?land, a bubo. ADKNAL'GIA. From «A», and «a>*c, pain. Pain in a gland. A DENEMPHBA2 IS. 7r:m *At, a ADH 31 ADN gland, and i/utyetfw, obstruction. Glandular obstruction. ADEN'IFORM. From afa, a gland, and forma, resemblance. Resembling a gland. ADENITIS. Glandular inflammation. AD'ENODYN'IA. See Adenalgia. ADENOGRAPHY. From *hv, a gland, and >/>*?«>, I describe. A description of the glands. ADENOL'OGY. Adenolo'gia; from etS„v, a gland, and teyoc, a discourse. A treatise on the glands. ADENO-MENINGEAL. From. *J»», a gland, and ("»v/>f, a membrane. An epithet applied by Pinel to a fever, because, in his opinion, the cryptce of the gastrointestinal mucous membrane were principally affected by the disease. ADENO-MESENTERPTIS. From «, to swell. Swelling of a gland. ADENO-PHARYNGITIS. From a^ v , a gland, and 9Uf>vy$;, the pharynx. Inflam- mation of the tonsils and pharynx. ADENOPHTHAI/MIA. From *, to dissipate. Defect of cutaneous perspiration. ADIAPHOROUS. From *, priv., and Jixfipst, it differs. A volatile and inodorous principle obtained from tartar by distillation. Neutral ; applied to medicines which have no effect either for good or ill. Also used to express neutral salts. AD / IPIC ACID. A volatile and fusible acid, obtained by treating oleic with nitric acid. AD / IPOCERE. Adipocera, from adeps, fat, and cera, wax. A fat-like substance into which the human body is converted by long immersion in water or spirit, or by burial in moist earth. Chevreul showed it to be an imperfectly saponified human fat. ADIPOSE. From adeps, fat. Fatty. Adipose Arteries. . Branches of the diaphragmatic, capsular, and renal arteries, which supply the fat round the kidneys. Adipose Membrane. Membrana Adi- posa. The membrane which incloses the adeps or fat. ADIPOSIS. Excessive fatness. ADIP'SIA. From a, priv., and cT^*, thirst. Absence of thirst, usually sympto- matic of cerebral disease. ADIPSOUS. Allaying thirst. Applied to medicines and fruits so acting. ADJUVANT. From adjuvo, to aid. A medicine added to a prescription to assist the operation of the principal ingredient. ADNA'TA. In Botany, this term is ap- plied to parts which are closely united to one another. In Anatomy, the tunica adnata is that portion of the conjunctiva which covers the sclerotic coat of the eye. AD / NATE. From ad, to, and nascor, natus, to be born, to grow. Connected or grown together. AEE 32 JET ADOLESCENCE. From adolescere, to grow. Growing; applied to the human race ; the period between puberty and the full development of the body. ADOPTER. Adapter. A chemical ves- sel with two necks, placed between a retort and receiver. AD PONDUS OMNIUM. To the weight of the whole. Used in prescriptions to indi- cate the proportion of some particular in- gredient. ADULA'RIA. A mineral, the most per- fect variety of feldspar. ADULTAGE. The age succeeding ado- lescence. ADULTERATION. The admixture of noxious or inert ingredients with that which is pure. ADUSTION. Adustio; from adurere, to burn. Cauterization ; the action of heat applied to the body. ADUSTUS. Burned; parched. ADVENTITIOUS. Adcentitius; from advenio, I come to. Accidental ; not in- herent. In Medicine, acquired diseases. ADY. See Palma Ady. ADYNAMIA. Impotentia; from *, priv., fuwftis, power. A defect of vital power ; debility. jEDOI'A. The pudenda. tEDOITIS. From aiJont, pudenda, and itis, inflammation. Inflammation of the pudenda. ^EDOPSOPH'IA. A name given by Sauvages to a fetid air issuing from the vagina or urethra. JE'GIDES. Small white spots on the pupil. JEGID'ION. Acollyrium. iEGILOPS. From a/|, euyos, a goat, and ««4>t;he e y e# a sore under the inner angle of the eye, so called because goats were sup- posed to be subject to it. ^EGOPH'ONY. ^gopho'nia; from*|, atyos, a goat, and v», voice. A peculiar sound of the voice resembling the bleating of a goat. It is a diagnostic of pus in the pleural sac. ^EOLIPILE. A hollow metallic ball, with a small pipe for the conversion of water into steam. Also an alcohol blowpipe. AER. A»p. Air, gas; often used as a prefix denoting the presence of air or gas. AER ATED. Impregnated with air. Also liquids impregnated with carbonic acid gas. A'ER FIXUS. Fixed air, or carbonic acid gas. AERIAL ACID. Carbonic acid gas. AERIF'EROUS. Aer tmdferre, to carry. An epithet for tubes which convey air, as the larynx, trachea, &c. • AERIFLUX'US. Aer, and jluere,flux- um, to flow. The discharge of gas, and the fetid emanations from the sick. Flatulence. AER'IFORM. Air-like ; a term applied to gaseous fluids. AEROL'OGY. Aerologia; from *»;, air, and \oyot, a discourse. The doctrine of the nature and properties of air. AEROMETER. An instrument for as- certaining the weight of air, or bulk of gases. iEROSE. From aes, aeris, copper or brass. Of the nature of copper; coppery. iERU'GO. Verdigris ; properly the rust of metal, but especially of copper. tES'CHOS. *«?%«. Deformity of the body generally, or of some part. ^ESECAVUM. From aes. Brass. ^S'CULINE. An alkaloid discovered in the JEsculus Hippocastanum. ^ES'CULUS. From esca, food. Horse- chestnut. A genus of trees of the order ^sculacecB. iEscrjLus Hippocastanum. The horse- chestnut tree. JSSTHE'SIA. From xtr$*vop*t, to feel. Perceptive sensation ; feeling. .ESTHESIOM'ETER. uEsthesis, and /utrpov, measure. A measurer of sensation. JESTFVUS. From cestas, summer. Belonging to summer. ^ESTUATIO. Ardor: ebullition; fer- mentation. ^ESTUS VOLATICUS. From cestus. heat, and volo, to fly. Transient heat or flushing of the face. ^ETAS. Age. ^THAL. See Cetyl. iETHER. From <*/3->v>, air, a highly vol- atile and inflammable fluid; oxvd of Ethvl. ^Ether Acet'icus. Acetic ether. JSther Hoffmaxxi. Spiritus Et7ieris Sulphurici Compositus. Hoffman's ano- dyne solution. ^Ether Hydrocyax'icus. Cyauuret of ethyl. Hydrocyanic ether. AFF 33 AGA ^Ether Muriat'icus. Chloride of ethyl. Muriatic ether. JEther Nitro'sus. Nitrous ether. ^Ether Rectifica / tus. Rectified ether. tEther Sulphu / kicus. Sulphuric ether. .^THER'EA. The ethers. ^Ethe'real Oil. Oleum aetherium. ^ETH'IOPS. From *&*+, sunburnt, swarthy. A term employed by the ancients to designate several black powders, oxides, sulphurets, &c. iExmoPS Antimonia'lis. A compound obtained by treating black sulphuret of mercury with sulphuret of antimony. Hux- ham's formula was to rub up mercury, Jiv, sulphuret of antimony, ^iij, and sulphur ^Ethiops Martia'lis. Deutoxide of iron. ./Ethiops Mineralis. Black sulphuret of mercury. tEthiops Vegetabilis. A species of charcoal, obtained by burning the Fucus vesiculosus (sea-oak) in a covered crucible and reducing it to powder. It contains io- dine, and was employed in glandular dis- eases. tETH'MOID. Ethmoid. ^ETHOGEN. From *iSuv, brilliant, yuvo/uai, to become. A compound of boron and nitrogen, so called from the brilliant phosphorescent light it gives when heated before a blow-pipe. ^ETH'RIOSCOPE. From */$■/»«, serene weather, and ; to examine. An in- strument invented by Sir John Leslie, for indicating the power of the clouds in pre- venting radiation of heat. iETHU'SA. A genus of umbelliferous plants.. iExHUSA Cyna'pium. Fool's parsley, or lesser hemlock, possessing poisonous prop- erties. AETIOI PHLEBES. Air tot oxs&c, eagle veins. Temporal veins. JKTIOL/OGY. JEtiolo'gia ; from *m*, a cause, and xoyos, a discourse. The doc- trine of the causes of disease. AFFAIRES. Menses. AFFECTION. Affectio. In Medicine, a disease ; in common language, an emo- tion or modification of the mind. AFFERENT. Affero, I bring. Convey- ing inwards. The vessels which convey the lymph or chyle to the lymphatic glands, are called afferent. AFFINITY. Affinitas. In Chemistry, attraction, or that tendency which different substances have to unite, and form another body. Affinity, Compound. Affinity is called compound, when three or more bodies, by their mutual attraction, unite and form one homogeneous body. Affinity, Double. Double elective at- traction. " When two bodies, each consist- ing of two elementary parts, come in con- tact, and are decomposed, so that their elements become reciprocally united and produce two new compound bodies ; the decomposition is then termed decomposition by double affinity." Affinity, Elective. The preference manifested by one body to combine with another, rather than with a third, a fourth, &c. Affinity, Single. The power by which two elementary bodies combine. AFFLATUS. From afflare, to blow upon. A term applied in Pathology, to a species of erysipelas, which attacks persons suddenly. AFFLUX'US. From Affluere ; to flow in. The determination of fluids to a part. AFFUSION. Affusio; from afun- dere, to pour upon. The pouring of any liquid upon the body. AFTER-BIRTH. The placenta and mem- branes of the ovum are so called from their being expelled after the deli very of the foetus. AFTER PAINS. The pain succeeding childbirth. AGACE'MENT DES DENTS. Teeth set on edge, caused by contact of acids. AGAH. Intermittent fever. A / GAMOUS. From *, priv., and y*/uoc, marriage. A term applied in Botany to cryptogamous plants, from the supposition that they do not possess sexual organs. AGAR'ICUS. Ag'aric. The generic name of the mushroom family ; order, Fun- gi; class, Cryptogamia, com-pvehendingsev- eral species. Agaricus Mineralis. One of the purest of the native carbonates of lime. Agaricus Pipera'tus. The pepper mushroom, or pepper agaric. Agaricus Quercus. Boletus igniarius. 3 AGE 34 AGH Agaric of the oak ; a fungus formerly used for arresting external hemorrhage. Agaricus Vtolac'eus. Violet mush- room. AGATE. A variegated chalcedony. AGA / VE. A genus of plants found in some parts of America, resembling aloes in its mode of growth and appearance. Agave Americana. Mexican aloe. Agave Cubensis. American aloe; the roots of which resemble the sarsaparilla of the shops. AGE. In Human Physiology, the dura- tion of the life of man ; also, a certain pe- riod of life marked by a difference of state. The ancients divided life into six stages : 1. Infantia vel pueritia, reckoned from birth to the fifth year of age. 2. Adolescentia, cetasbona; youth reckoned to the eighteenth, and youth, properly so called, to the twen- ty-fifth year. 3. Juvenilis, from the twenty- fifth to the thirty-fifth year. 4. Virilis cetas, cetas firmata, thirty years ; cetas con- stems, forty years ; cetas matura, fifty years ; manhood, from the thirty-fifth to the fifty- fifth year. 5. Senectus, cetas provecta, cetas mala ; old age, from fifty to sixty. 6. Crepi- ta cetas, cetas ingravescens, cetas decrepita, cetas affecta, cetas exacta, cetas extrema: decrepit age, ending in death. The most common division of life is into four stages, or ages ; namely, infancy, youth, manhood, and old age. But the division of Halle seems to be more distinctly marked by changes in the economy than any other. He divides life into, 1. Infancy, extending from birth to the seventh year of age. To this, three sub- divisions have been proposed. 1. The pe- riod of the commencement of the eruption of the temporary teeth, which is usually about the seventh month from birth. 2. The period of the completion of first den- tition, which is ordinarily about two and a half years after birth. 3. When the tem- porary teeth begin to be replaced by the permanent teeth. 2. Childhood, from the seventh to the fifteenth year, during which period the whole contour of the face and expression of the countenance is changed by the elonga- tion of the jaws, development of the al- veolar borders, and dentition of all the per- manent teeth, except the dentes sapientise, or last molars. 3. Adolescence, or adolescentia, extend- ing from the fifteenth to the twenty-fifth year of age, during which period, the jaws elongate sufficiently to admit the last mo- lars, the eruption of which completes the dentition of the permanent teeth. 4. Adult age, or virilitas, a period of life extending in man from the twenty-fifth to the sixtieth year of age, and in woman from the twenty-first to the fiftieth. This period is divided again, into increasing, estab- lished, and decreasing virility, during which, the teeth undergo no change except that which they experience from disease. 5. Old age, or senectus, embracing that period when the powers of the body are de- clining, ending in death. During this time the alveolar processes often waste away, causing the teeth to loosen and drop out. AGENESIA. Agennesia; from <*, priv., ytvvau, to beget. 1. Impotence; male ster- ility; inability to beget offspring. 2 Atro- phy and imperfect development of the brain. A'GENT. From ago, to act. Anything which produces an effect. In Pathology, the extraneous causes of disease are termed morbific agents. In Therapeutics, any- thing used in the treatment of disease is termed a therapeutic agent. In Chemistry, any substance capable of producing chemi- cal action, is termed a chemical agent, &c. AGEUS / TIA. From *, priv., and ytvo- /urn, gusto, to taste. Loss or diminution of taste. AGGLOMERATE. From agglomerare, to wind up, to collect together. Applied to tumors or glands in aggregation. AGGLUTINATION. From aggluti- nare, to glue together. The act of being united by means of some tenacious sub- stance. In Surgery, the adhesion of divi- ded parts, as the lips of a wound. AG'GREGATE. Aggregatus ; fromag- grego, to assemble together. Bodies of the same kind when united together, are called an aggregate. Glands which are in clus- ters are called glandules aggregatce. AGGREGATION. A form of attrac- tion usually termed cohesion, by which par- ticles are aggregated or retained in the state of a solid. AG'HOUL. A'gul, Altha'gi. A thorny AGR 35 AIT shrub of Persia, which affords manna. The leaves are purgative. AGITATION. Agitatio; from agito, freq. of ago ; to act. Restlessness ; con- stant movement of a patient; inquietude. It often arises from the irritation attending dentition. See Dentition, Morbid. AG / LIUM. A glossy tubercle on the face ; also, a white speck on the eye. AGLOS / SIA. From *, priv, and yxaxra-ct^ the tongue. Absence of the tongue. AGMA. Agme. &?/*&, gen. ay^aroc. Fracture. AGMATOLOG'IA. Aypa and \oyoc, a description. The doctrine of fractures. AGMINATED GLANDS. Peyer's Glands. AGNAIL. Hangnail. AGNA'THIA. From «, priv., and >v*Sec, jaw. A malformation consisting in the want of the jaw, especially of the lower. AGNOFA. Agnoza. From *, priv., and yivaxry.ocj I know. Want of memory ; forget- fulness. AG'NUS CAS / TUS. The chaste tree; a species of vitex ; also castor oil. AGOMPHFASIS. Agomphosis ; from *, priv., and yoy.qm, I nail. Looseness of the teeth, usually caused by disease in the gums and the gradual destruction of the alveoli. See Gums, Diseases of; also, Al- veolar Processes, Destruction of the. AG'ONE. Henbane. AGONIS'TICA. A^v, a combat. Very cold water, given internally to calm febrile heat. AGONOS. Barren. AGOS / TUS. a>o, I lead. The forearm from the elbow to the fingers. Also the palm of the hand. AGRES'TIS. Wild. When applied to disease by the old writers, it means violent, unmanageable. AGRA. Aypta, I seize hold of. A seiz- ure, as Odontagra, a tooth seizure, tooth- ache. AG / RIA. Holly. Also, a malignant pustule. AG'RIMONIA EUPATORIA. The common agrimony; a plant of the natural order Rosacea. Agrimony Hemp. Eupatorium canna- binum. AGRIOTHYM'IA. From aypt % wild, and Supoc, disposition. Furious insanity. AGRIPAL / MA. Motherwort, or wild palm. Leonurus cardiaca. AGRIP / PA. From aypn, a capture, and wowc, a foot; or perhaps from cegre partus, born with difficulty. AGRYPNOCO'MA. From «^™*, sleeplessness, and Kmy.*., drowsiness. Leth- argic watchfulness. AGRYP'NIA. From *, priv., and vttvos, sleep. Sleeplessness ; watchfulness. A / GUE. Trembling ; shuddering ; inter- mittent fever. Ague and Fever. Intermittent fever. Ague, Brass-Founders'. A series of morbid phenomena, resembling ague, in those who are exposed to the fumes of zinc in brass founderies. Ague, Brow. Neuralgia frontalis. Ague, Dead. Ague, Dumb. An irregu- lar or masked intermittent. Ague-Drop. A solution of arsenite of potassa in water. Ague-Tree. Laurus sassafras. Ague-Weed. Eupatorium perfoliatum. Ague-Cake. A hard tumor on the left side below the false ribs, caused by a vis- ceral obstruction, generally of the spleen, which may be felt externally. It is the effect of intermittent fever. AGU / IOS. From a, priv., and yvtov, limb, mutilated or wanting limbs, weak, feeble. AGYR'IAS. Ayvpts, a collection. Opac- ity of the crystalline. AIGRE. From acer, sharp. Acidulous. AIL. Disease. AILMENT. See Ail. Disease. AIR. A»/>. Aer; from *a>, I breathe. At- mospheric air; an elastic, invisible fluid, surrounding the earth to the height, it is said, of fifteen or sixteen leagues. Air-Cells of the Lungs. Bronchial cells. Air, Fixed. Carbonic acid ; mephitic air. Air, Inflammable. Hydrogen. Air-Passages. The larynx, trachea, bron- chia, &c. Air Pump. A machine by which air in a vessel may be withdrawn. Air, Vital. Oxygen. AISTHETE'RION. Mstheterium. The sensorium commune. AITCH. Pain. ALA 36 ALB AITHOMO'MA. A/^ec, black. A black condition of all the humors of the eye. A 111 A. A*«*. Cause. AL. The Arabic definite article. AI/A. Pinna; pteryx. Awing. Parts projecting like a wing from the median line are designated by anatomists by this name, as the ala3 nasi, &c. In Botany, the lateral petal of a papilionaceous corolla. Ala Auris. The wing of the ear. This is the upper part of the external ear. Ala Nasi. The cartilage which forms the outer part of the nostril. ALABAS'TER. A variety of compact gypsum; it has a white or grayish color. It was at one time much used in dentifrices, but at present it is seldom employed for this purpose. When used upon the teeth, no matter how finely pulverized, it gets between the free edges of the gum and necks of these organs, where its mechanical action is often productive of much injury. There are two kinds of alabaster: 1. Gypseous, alabaster, a natural semi-crystalline sulphate of lime, forming a compact gypsum of various colors, employed in making statuary, vases, &c. 2. Calcareous alabaster, a mixed carbonate and sulphate of lime, deposited by the drip- ping of water in stalactitic caves. AL M MA JO RES. Labia externa of the pudenda. Al,e Minores. The nympJios. &-LM Nasi. Wings of the nose. The lateral or movable cartilaginous parts of the nose. Al^e Vespertilionis. Bat wings. The broad ligaments between the uterus and the Fallopian tubes. AL^EFORM. Alceformis. From ala, a wing, and forma, a resemblance. Resem- bling a wing; wing-shaped. ALANIN. An alkaloid obtained by act- ing on aldehyd ammonia with hydrocyanic acid. ALAN'TINE. Inuline; a whitish starch- like substance, extracted from the roots of the Inula helenium, and of Colchicum. ALARIS. From ala, a wing. Wing-like; belonging to a wing. Alares Ven^e. The superficial veins at the bend of the arm. ALARIA OSSA. The lateral processes of. the sphenoid bone. ALB AMENTUM. The white of an egg. Albumen. ALBA'TION. Albatio. The act of be- coming white. ALBICAN'TIA CORPORA. From ah bico, to become white. See Corpora albi- cantia. ALBFNO. From albus, white. A Span- ish word applied to the white progeny of negro parents. The skin has a pallid hue; the hair on every part of the body resem- bles bleached flax; the iris has a pale red- dish color, and is so sensitive that it can scarcely bear the light of day. The term is also applied to all persons who have these characteristics. ALBITE. Soda feldspar; a silicate of alumina, possessing properties similar to common feldspar, with the substitution of soda for potash. ALBOR / CA. An old name for mercury. ALBOTIM. Turpentine. ALBUGIN'EA OCULL The white fi- brous membrane of the eye, situated imme- diately under the conjunctiva. The white of the eye. Albdginea Testis. The thick, white membrane which immediately invests the testicle. ALBUGIN'EOUS. From albus, white. A term applied by anatomists to textures and humors which are white. ALBUGO. From albus, white. A white opacity of the cornea of the eye. ALBU / MEN. A protein compound, the chief constituent of the body, or rather the material from which the tissues are mainly formed. It is found in great abundance in es the Heat, creasote, and the acids (excepting the acetic) coagulate it. Vegetable Albumen, found in most vege- table juices, is identical with and is probably the source of, animal albumen. Albumen O'vi. The white of an egg. ALBUMINATE OF SODA. When al- bumen is treated with soda, it loses some of its properties. Heat does not coagulate it, but changes it to a jelly. When the solution is boiled, a film forms on the surface resem- bling that of casein under similar circum- stances. ALBU'MINOSE. See Peptones. ALC 37 ALE ALBUMINOUS. Of the nature of, or containing albumen. Albuminous Group. A term of Prout's classification, signifying that class of animal and alimentary substances the composition of which is analogous to albnmen. It in- cludes albumen, Jibrin, gluten, legumin, globulin, casein, and the substances called oxides of protein. ALBUMINURIA. A disease in which the urine contains albumen. It is commonly applied to Bright's disease. ALBURNUM. The soft white substance found between the inner bark and wood of trees; in time it becomes wood. ALCANA or ALKANA. The name of the root and leaves of the Lausonia Inermis, a plant employed in the East for dyeing the nails, teeth, and hair, &c. Used in Mechan- ical Dentistry to color wax. ALCALES'CENT. Becoming alkaline. ALCAR'GEN. Cacodylic acid. ALCAR'SIN. Oxide of kakodyl; a liquid obtained by treating acetate of potash and arsenious acid, remarkable for its insupport- able odor and spontaneous inflammability in air. ALCALI. Alkali. AL'CEA. A genus of malvaceous plants. The hollyhock. Alcea Ro / sea. The common hollyhock. AL / CHEMIST. One who practises al- chemy. AL / CHEMY. The mysterious art which pretends to transmute the baser metals into gold, and to find a panacea for all diseases. AL'CHITRAN. The oil of juniper; also the name of the dentifrice of Mesue, an ancient Arabian physician. AI/COHOL. Pure or highly rectified spirits of wine. It is a powerful diffusible stimulant, and is used both as a medicinal and pharmaceutic agent. Chemically pure alcohol is styled absolute alcohol. See Abso- lute Alcohol. It is an oxyhydrate of ethyl, and is represented by the formula AeO, HO, Ae, or ethyl, being C 4 H 5 . The empirical formula is therefore C 4 H 6 2 . The common alcohol of the shops, however, contains a variable quantity of water. When diluted with an equal weight of water, it is termed Proof spirit, or Spiritus tenuior of the Phar- macopoeia. The first product of the dis- tillation is technically called low wine, and is again subjected to distillation. The latter portions of what comes over are called feints, and are reserved for a further process in the wash-still. The second product is termed raw spirit, and when again distilled is called rectified spirit. The strongest al- cohol is called Absolute Alcohol or Anhydrous Alcohol, to denote its entire freedom from water. Alcohol Ammoniatum. A combination of alcohol and ammonia. Alcohol Amyltcum. See Fusel Oil. Alcohol of Sulphur. Sulphuret of carbon. ALCOHOL ATES. Officinal medicines, in which alcohol is first impregnated with medicinal principles by maceration, and then by distillation, so that it only retains the volatile portions. Also, compounds of al- cohol with salt, called alcoates. ALCOHOLOMETER. Fromalcohol,and fAirpov, a measure. An instrument for ascer- taining the quantity of alcohol in any fluid. ALCORNOQUE. Alcornoco. The bark of an unknown South American tree, extolled as a specific in phthisis pulmonalis. ALCYO'NIUM. Bastard sponge; the ashes of which were formerly used as a dentifrice. AL'DEHYDE. The hydrated protoxide of acetyl, an ethereal fluid. Abridged from alcohol dehydrogenatus, alcohol deprived of hydrogen. See Anaesthetic. AL'DER. Betula alnus. ALE. Alia. A fermented infusion of malt, usually combined with hops. ALEFPHA. From uxuu to anoint. Medicated oil. ALE / MA. From at, priv., and x^o?, hun- ger. Anything which satisfies hunger. Boiled meat. Farina. ALEM'BIC. Alembicus; a vessel made of glass, metal, or earthenware, for the re- ception of volatile products from a retort. ALEM'BROTH SALT. A compound of bichloride of mercury and sal ammoniac. The Salt of Wisdom of the alchemists. ALETRIS FARINOS A. Star-grass, the root of which is employed as a tonic. ALEXIPHAR'MIC. From a^ttv, to re- pel, qapjuaitov, poison. An antidote. A term formerly applied to sudorifics, because they were supposed to eliminate the poisonous matter of fevers through the skin. ALI 38 ALL AL'EZE or AI/ESE. From aug*, to prevent. A cloth folded several times in order to protect the bed from discharges of blood, kc. AI/GA. Meergrass ; sea-weed. AL'GJE. Plants which vegetate exclu- sively under water, and are destitute of sexual organs. AI/GAROTH, POWDER OF. From Algaroth, the name of a physician of Verona, its inventor. Oxychloride of antimony. ALGE / DO. From axyos, pain. Pain in the region of the neck of the bladder and anus, caused by sudden suppression of gonorrhoea. ALGI'DA FERRIS. A malignant fever characterized by icy coldness on the surface. AI/GOR. Chilliness, rigor. AI/IBLE. From alo, to nourish. Nu- tritious. AI/ICES. From , to sprinkle j or alica, a kind of grain, from their size. The reddish spots which appear on the skin previously to the eruption of small-pox. ALIENATION. Alienatio; from alieno, to estrange. Applied to a wandering of the mind ; insanity ; mental derangement ; de- lirium. AI/IFORM. Aliformis ; from ala, a wing, and forma, likeness. Pterygoid ; wing-like. AI/IMENT. Alimentum ; from alo, to nourish. Food. Any substance which, when introduced into the alimentary canal, may, after being subjected to the action of the digestive organs, afford nourishment to the body. ALIMENTARY. Pertaining to food, or aliment. Alimentary Canal. A musculo-mem- branous tube, through which the food passes. It extends from the mouth to the anus. Alimentary Duct. Alimentary canal. ALIMENTATION. The act of nourish- ing ; the assimilation of food. ALIPvE'NOS. From a, and xvraim, to make fat. Applied to very lean persons ; also to dry external remedies as pow- ders, &c. ALITU / RA. From alo, nourishment. The process of assimilation or nutrition ; food or nourishment. ALIZARINE. The red coloring matter of madder. ALKALESCENT. Any substance con- taining manifest alkaline properties, or in which these properties are becoming de- veloped or predominate. ALKALI. A term applied to certain ox- ides, soluble in water, possessing the power of neutralizing acids, so as to form a saline compound, and of changing some vegetable blues to green, and some vegetable yellows to brown. There used to be reckoned three kinds of alkalies. 1. The vegetable, or potash; 2. The mineral, or soda; and 3. The animal, or ammonia, also called the volatile alkali. Modern chemistry has added to these, liihia. Alkali Caustictjm. Caustic alkali. Alkali Fixum. Fixed alkali. Applied to potash and soda, because they are perma- nently in a solid state. Alkali, Vegetable. Another term for potash. Alkali, Volatile. Another name for ammonia, on account of its volatile nature. ALKALIG'ENOUS. Alkali, and yma*, to generate. Producing alkaline qualities. ALKALIM'ETER. An instrument for determining the purity of the alkalies of commerce. ALKALINE. Substances which con- tain, or partake of the nature of an alkali. ALKALINE EARTHS. Earths which possess alkaline properties, as magnesia, lime, baryta, and strontia. ALKALIZA'TION. The impregnation of anything with an alkaline salt. ALKALOID. A salifiable base exist- ing as a proximate prineiple in some vege- tables, and possessing the properties of an alkali in a greater or less degree. AL'KANET ROOT. See Auchusa Tinctoria. ALKERM'ES. A celebrated electuary, in which kermes is the basis. ALLANTOIC FLUID. The fluid fill- ing up the space between the allantois and the amnion. In the cow it contains allau- tina, albumen, lactates, phosphates and chlorides. ALL'ANITE. A mineral of a brownish black color, having associated with it mica and feldspar. ALLANTO'IS. Membrana aUanMdes; ALL 39 ALM from axxac, a sausage, and eufoc, likeness. A membrane of the foetus, found in most of the mammalia, situated between the chorion and amnion. ALLANTO'INE. A crystalline sub- stance obtained from the allantoic fluid of the cow. Its formula is CgH^NjOs + HO. ALLEN'S FUSIBLE SILICIOUS CE- MENT. A composition for uniting single porcelain teeth to a plate and to each other; the use of which is secured to Dr. John Allen, by letters-patent. See Harris's Den- tal Surgery. ALLIACEOUS. Alliaceus; from al- lium, garlic. Pertaining to garlic ; similar to garlic. ALLIA'RIA OFFICINALIS. Erysi- mum alliaria. Hedge garlic. The seeds are diuretic, diaphoretic, and expectorant. ALLIGATION. From alligo, to bend. Aa arithmetical formula for ascertaining the proportions of the constituents of a mix- ture when they have undergone no change of volume by chemical action. ALLITURIC ACID. An acid generated when allantoine is boiled with hydrochloric acid. AL'LIUM.- Garlic. A genus of plants of the order Asphodelece. Allium is stimu- lant, diuretic, expectorant, emmenagogue, diaphoretic, and anthelmintic. Externally it is rubefacient and repellant. Dose, ^ss to 3). Allium Ascalonicum. The shallot, a bulbous plant resembling the garlic. Allium Cepa. The common onion. Allium Porrum. The leek or porret. Allium Sativum. Garlic. Allium Scblenoprasum. The chive. ALLOTRIOPHAGIA. From axxorpioc, strange, and qaya>, J devour. A desire, or morbid longing to eat inedible substances, as chalk, leather, coal, &c; depraved ap- petite. ALLGEO / SIS. Alloiosis; from axxoioa, to change. Alteration in the character of a disease, or in the constitution. ALLCEOT'ICA. From a^xog, another. Alterative medicines. ALLOGNO'SIS. From } to nourish. Dis- proportionate nutrition," as of the bones in rickets. Hypertrophy of a part or organ. ALOPE / CIA. From , to be vexed. Anxiety; restlessness arising from disease. AMADOU. Literally, touchwood, a kind of fungus. A substance used in graduated compresses ; also to support varicose veins, and protect abraded surfaces. AMAL/GAM. Amalgama; from <*««, to- gether, and \a/uuv } to marry; or a/ua and (AaK, to darken or obscure. Gutta serena. Partial or total loss of sight, without any apparent alteration in the eye, arising from paralysis of the optic nerve, and generally characterized by dilatation of the pupil, immobility of the iris, and want of natural expression. AMAUROTIC. Affected with amaurosis. Amaurotic Cat's Eye. Amblyopia senilis. An amaurotic affection, occurring chiefly in very old persons, and accompanied by remarkable paleness of the iris. AMBER. Succinum. A hard, brittle, tasteless, bituminous substance, sometimes transparent, but often semi-transparent or opaque. It is met with of all colors, but is most frequently yellow or orange. See Suc- cinic Acid. AM'BERGRIS. Ambragrisea. A con- crete substance, exhaling a pleasant aro- matic odor, found in irregular masses float- ing on the sea, near the Molucca Islands, Madagascar, Sumatra, on the coast of Co- romandel, Brazil, America, China, and Ja- pan. It is thought by some to be produced in the intestines of the whale. AMBIDEXTER. Amphidexius ; from ambo, both, and dexter, right. One who uses both hands with equal facility. AMBLO / SIS. Miscarriage; abortion. AMBLYAPH'IA. From apfave, dull, and apu, touch. Loss of the sense of touch or general feeling. AMBLYOPIA. From *p0kue, dull, and »4, the eye. Dimness of sight; partial am- aurosis. Amblyopia Dissitorum. Short-sighted- ness. Amblyopia Proximorum. Long-sighted- ness. AMBLYG'ONITE. A phosphate of alu- mina and lithia, a rare mineral. AMBREIC ACID. A peculiar acid, ob- tained by treating ambreine with nitric acid. AMBREAS. Ambreate. A salt formed from ambreic acid with a salifiable base. AMBREINE. Ambreina. The fatty sub- stance which forms the greater part of am- bergris, and is somewhat analogous to cho- lesterine. AM'BON. The margins of the sockets in which large bones are lodged. AMBULANCE. From ambidare; to move about. A light wagon, furnished with everything necessary for attending upon the wounded in the field of battle; also used for conveying wounded soldiers. AMBUS / TION. Ambustio; from am- buro, to burn. A burn or scald. AM'ELIN. A new base precipitated in the alkaline solution, from which melamin has been deposited, on being supersaturated with acetic acid. AMELINIC ACID. An acid generated by the action of chlorine upon caffein. AMENOMA / NIA. Amcenus, pleasant. A gay or cheerful form of mania. AMENORRHCE' A. From a, priv., /u»*, a month, and pu», to flow. A partial or totally obstructed menstruation. AMENTACEOUS. Resembling an ament or thong ; growing in an anient. AMEN / TIA. From *, priv., and mens, the mind. Imbecility of mind. AMER. The bitter principle produced by digesting nitric acid on raw silk. AMERICAN CENTAURY. Sabbatia angularis. American Dittany. Cunila mariana. American Hellebore. Yeratrum album. American Ipecacuanha. Euphorbia ipe- cacuanha, and Gillenia trifoliata. American Sanicle. Heuchera Ameri- cana. American Senna. Cassia marilandica. American Spikenard. Aralia racemosa. AMETHYST. From a, priv., and |K«3*a>, to be intoxicated. Purple rock crystal, a variety of quartz. AMETRIA. Intemperance. AMIANTHUS. From a, priv., and /utaiw, to pollute. Mountain flax: asbestos, an incombustible mineral, consisting of fine silky fibres. AMIDES. Saline compounds containing a base composed of one atom of nitrogen and two of hydrogen. AMIDOGEN. A compound of nitrogen and hydrogen, NH 2 , existing in combination with a few metals and organic substances. AMM 45 AMO Kane regards it as the basis of all the am- moniacal compounds. According to him, ammonia is an amide (Ad H), and ammoni- um a subamide (Ad H 2 ) of hydrogen. Its symbol is Ad. AMID'IN. The soluble part of starch, obtained by solution of the latter in hot water. AMILINE. Amylen. A liquid hydro- carbon, obtained by distilling hydrated oxide of amyl with anhydrous phosphoric acid. AM MA. — A truss. AM MI. A genus of umbelliferous plants; Bishop's-weed, comprising several species, of which the Ammi majus furnishes aromatic seeds, formerly employed as a carminative and tonic. AMMO'NIA. A transparent, colorless, elastic alkaline gas, of a penetrating odor and acrid taste, obtained by the destructive distillation of animal matters. It is com- posed of three parts hydrogen and one ni- trogen, and is supposed to contain a metallic base, ammonium. By Priestley it was called alkaline air. It is called the volatile alkali, to distinguish it from the fixed alkalies, soda and potash. Its present name is derived from sal ammoniac, of which it constitutes a basis. AMMONPACAL AI/UM. A double salt consisting of sulphate of ammonia and alumina. AMMONPACUM. Gum-ammoniac. The inspissated juice of the Dorema ammonia- cmn, an umbelliferous plant which grows in Persia. It is brought to this country in small white globules, clustered together, or in lumps of a brownish color. Dose, gr. x to xxx. AMMONIACO. A term prefixed to salts in which ammonia has been added in suffi- cient quantity to combine with both the acid and the base. AMMO'NIUM. A name given to a hy- pothetical compound of hydrogen and ni- trogen, NH 4 , the supposed metallic base of ammonia. AMMONITE ACETATIS LIQUOR. Aqua ammonia acetatce. A solution of ace- tate of ammonia. Ammonia Carbonas. Subcarbonate of ammonia. It is stimulant, antacid, diaphore- tic, and antispasmodic. Dose, gr. v to xv. Ammonite Liquor. Liquor of ammonia. Spirits of hartshorn. A concentrated solu- tion of ammonia. Ammonite Murias. Muriate of ammonia. It is aperient and diuretic, but seldom used internally. Externally, it is employed, pro- ducing cold during its solution, in inflam- mations, &c. Ammonite Nitras. Nitrate of ammonia. Composed of nitric acid and ammonia. It is diuretic and deobstruent. Externally it is discutient and sialogogue. Ammonite Phos / phas. Phosphate of Am- monia; excitant, diaphoretic, and discutient. It is recommended in gout and rheumatism, as a solvent for uric acid calculus and for diseases of the lithic acid diathesis. Ammonite Subcarbonas. Subcarbonate of ammonia. See Carbonate of Ammonia. Ammonite Subcarbonatis Liquor. A solution of subcarbonate of ammonia. Ammonite Sulphas. Sulphate of ammo- nia. Formed by adding sulphuric acid to sal ammoniae, or to ammoniacal liquor. Its properties are similar to those of muriate of ammonia. Ammonite Tartras. A salt composed of tartaric acid and ammonia. Ammonite Valerianas. Valerianate of ammonia. Used in neuropathic affections, like valerian, &c. See Valerianate of Am- monia. AMMONIURET. A compound of am- monia and a metallic oxide. AMNESIA. From a, priv., and f*v»/. A Greek preposition, used as a prefix, signifying about, on all sides, &c. AMPHIARTHRO'SIS. From n**^, both and apfyaxrtc, an articulation. A mixed ar ticulation, in which the articular surfaces of bones are united by an intermediate sub stance, which admits of but little motion, as the vertebras by the intervertebral cartilages AMPHIBIOUS. Capable of living in two elements, air and water, as the croco dile, beaver, frog, &c. AMPHIBLESTROI'DES. From aju

, I cast. Vomiting ; expectoration. ANABROCHE'SIS. From am, again, and fyox&p, to absorb. Reabsorption of matter. ANACARDIACEaE. The cashew tribe of dicotyledonous plants, which abound in resinous, sometimes acrid, and very poison- ous juice. ANACAR'DIUM. A genus of plants of the order Anacardiacece. Anacardium, Oil of. A volatile oil dis- tilled from the cashew nut. It is powerfully irritant and vesicant. Anacardium Occidentale. The cashew nut. Anacardium Orientale. The Malacca bean. ANACATHAR'SIS. From am, upward, and xad-aipttv, to purge. Purgation upward ; expectoration. ANACATHAR'TICUS. Expectorant or emetic. ANACHREMP'SIS. Hawking up from the lungs. ANACLA / SIS. From amnxau, to bend back. Recurvature of any part. ANACOLLE'MA. From a v a, together, and Aowaost, I glue. A collyrium composed of agglutinating substances, and stuck on the forehead ; also, healing medicines. ANACONCHYLIS'MOS. From amny. X^'fa, to sound as a shell. A gargarism ; so called, because it makes a noise in the throat like the sound of a shell. ANACTE / SIS. From ayanrao/uat, to re- cover. Recovery of strength ; recovery from sickness. ANADIPLO'SIS. From am, again, and favhoee, I double. A redoubling or fre- quent return of paroxysms, or disease. ANADORA. Excoriation. ANiE'MIA. From a, priv., and a(/ua } blood. Exsanguinity ; deficiency of blood, arising either from repeated hemorrhages or disease, and characterized by paleness of the face, lips, and general surface of the body ; quick, feeble pulse, impaired appetite, &c. ANaEMOT'ROPHY. Ancemotrophia ; from a, priv., a/^ua, blood, and Tp?», nourish- ment. Deficiency of sanguineous nourish- ment. ANAESTHESIA. From a, priv., and aiff&avojuat, I feel. Want of feeling ; loss of the sense of touch ; insensibility. ANAESTHETIC. Pertaining to want of feeling, as anaesthetic agents, those which prevent feeling. Anaesthetic Agents. The agents em- ployed to prevent pain during surgical oper- ations and parturition. The inhalation of the vapor of ether, chloroform or of nitrous oxide gas will have this effect. The prac- ticability of producing it by the inhalation of a gaseous substance is believed by some to have originated with Dr. H. Wells, a dent- ist of Hartford, Ct., but the credit of fully demonstrating that the inhalation of the vapor of sulphuric ether would do it, has been very generally awarded to Dr. W. T. G. AN.E 48 ANA Morton, a dentist of Boston, though the idea of employing this particular agent in this way, is said to have been suggested to him by Dr. C. T. Jackson, an eminent chemist of that city. More recently, Pro- fessor Simpson, of Edinburgh, discovered that the vapor of chloroform would prod uce the same effect, and more promptly than that of ether. A mixture of chloroform and ether, known as chloric ether, is also used to produce anaesthesia. Its advocates claim for it the prompt action of chloroform, and the safety of ether. Another mixture for inhalation, known as strong chloric ether, or as alcoholic solutiou of chloroform, has been recommended by Dr. Warren. Other agents have also been used, such as chlorohydric and nitric ethers, bisulphuret of carbon, chloride of defiant gas, amylene, benzine, aldehyde, light coal-tar naphtha, &c. See Nitrous Oxide Gas. Much judgment and care are required in the employment of these agents, as loss of life has resulted from their use in a number of instances. In general surgery, and dur- ing parturition, they may be often used, no doubt with great advantage, but they should seldom be resorted to in so simple an oper- ation as the extraction of a tooth. See Re- suscitation. A variety of instruments have been in- vented from which to inhale the vapor of these agents, but the usual and best method of administration consists in pouring three or four teaspoonfuls of ether, or from fifty to a hundred and twenty drops of chloro- form, into the interior of a hollow sponge, or on a pocket handkerchief or napkin, and holding it to the mouth and nose. In this way the vapor may be freely inhaled, and the desired effect will generally be produced in from seven to ten minutes with the former, and in from thirty seconds to two minutes with the latter. Ax^esthutics, Local. The fatality at- tending the inhalation of the vapors of anaes- thetic agents, led to the introduction of what are known as local anozsthetics. Amon^ the earliest of these is the method of pro- ducing insensibility of a part by applying a mixture composed of two parts of ice and one of salt. An instrument for applying this mixture to the tooth to be extracted, and the gum surrounding it, is known as Branch'sApparatus. See Branch's Apparatus. The danger from this mixture is in reducing the temperature of the parts so low, that re- action will not follow, the result of which is loss of vitality and sloughing. Another apparatus, known as Richardson's Spray Apparatus, invented by Dr. Benj. W. Richardson, of London, acts upon the prin- ciple of directing on a part of the body, such as a tooth and the surrounding gum, a vola- tile liquid, absolute ether, having a boiling point at or below blood-heat, in a state of fine subdivision or spray, such a subdivision being produced by the action of air, or other gaseous substance on the volatile liquid to be dispersed. Dr. Richardson prefers ab- solute ether, for use in this way, to any other fluid. Some prefer rhigolene to pro- duce the freezing, as being more sure, more convenient, and more easily controlled. See Richardson's Spray Apparatus. See Rhig- olene. Another method of producing local anaes- thesia is by the application of the electro- galvanic current. One pole of the battery, either the positive or negative, is attached to the handle of the forceps, and the other to a cylinder of tin, which is held by the patient. The handles of the forceps are either wrapped with silk, or coated with some non-conducting substance, as gum- shellac, to prevent the shock from being communicated to the operator. This method was brought to the notice of the dental profession, by Mr. Francis, in 1858, but is very uncertain in its results. Many other methods for producing local anaes- thesia have been tried, such as compression, the use of benumbing mixtures, , to form. Surgical operations for restoration of lost parts, or for reparation of certain de- formities, or natural defects in the structure of the body. ANAPLERO'SIS. From a v a7r\»poa>, to fill again. The restitution of wasted parts. ANAPLEU'SIS. From avar^a, to float. Looseness of an exfoliated bone, or of a tooth. For the latter, see Gomphiasis. ANAPNEU / SIS. From manna, to re- spire. Respiration. ANAPTO'SIS. From awmirr*, to fall back. A relapse. ANARRHCE'A. From ava, up, and />e«, to flow. An afflux of fluid to the head or towards the upper part of the body. ANASARCA. From ava, through, and «"#/>£, flesh. General dropsy, or an accumu- lation of serum in the cellular membrane. ANASTAI/1'IC. From avarnhhUj to contract. Styptic medicines. ANASTOMOSIS. From ava, through, and a-rofAa, a mouth. The communication of branches of vessels with each other. ANASTOMOTIC. Anastomotic^. Med- icines which were thought to open the pores and mouths of vessels. ANATASE. Pyramidal titanium ore. It is pure titanic acid. It occurs in octa- hedral or tabular crystals. Its color is brown of various shades, passing into indi- go blue or greenish-yellow by transmitted light. It is said to accompany native tita- nium in the slags from the iron furnaces in Orange County, New York. ANAT'OMY. From ava, and rt/uvuv, to cut. The dissection of organized bodies so as to expose the structure, situation, and use of the various parts. The word, as at present used, has reference also to the study of the parts of organized bodies and their use. In a word, it may be properly called the science of organization, though it is commonly limited to the study of the human body. Anatomy, Comparative. Zootomy. The comparative study of the organs of ani- mals generally. Anatomy, Descriptive. The anatomy of the various organs of the human body, including their shape, mutual relations, &c. Anatomy, Genkral. This treats of the structure and properties of the different tissues common to several organs, embra- cing an examination of the general charac- ters of all the organs and humors. Anatomy, Morbid, or Pathological. This treats of diseased states or alterations of structure. Anatomy, Special. This treats of the healthy state of the organs of a single species. Anatomy, Surgical. An examination of the various organs, with special refer- ence to surgery. Anatomy, Transcendental. The in- vestigation of the plan or model upon which the living frame and its organs are formed. ANATRE'SIS. From ava, and t*tpo*, to perforate. A perforation like that made by trepanning. ANATR1BE. Anatripsis. From avarpi/Za, to rub. Friction upon the body. ANAU / DIA. From *, priv., and avf», the speech. Privation of speech. Cata- lepsy. ANAZOTU'RIA. From a», and azotum, azote, and ou/>ov, urine. A variety of chronic diuresis, in which there is a deficiency of urea. AN'CHILOPS. From ayxh near t0 , and &>4, the eye. An inflammatory tumor in the inuer angle of the eye. ANCHORA'LIS. A name applied to the coracoid process. ANCHU'SA. A genus of plants of the order Boraginece. AKD 50 ANE Anchusa Officinalis. The officinal bugloss. Anchusa Tincto'ria. The alkana of the Pharmacopoeias; the alkanet plant, used in mechanical dentistry to color wax for taking impressions. ANCHUSIN. A resinous coloring mat- ter, extracted from alkanet. ANCHYLOSIS. Ancylosis. Ankylosis. From ay«.v\oc, crooked. A stiff joint. Anchylosis of Lower Jaw. Stiffness and immobility of the temporo-maxillary articulation. It results from chronic rheu- matism or gout, or old age, or from some disease of the synovial membrane, carti- lage of the joint, or articular surface or ex- tremity of the bone. Fortunately, as it seldom admits of cure, it is an affection of rare occurrence. AN'CON. From «}xa>i«, elbow. The el- bow ; the olecranon process of the ulna. ANCONEUS. From ayw, the elbow. The name of a muscle situated on the back of the elbow. Anconeus Externus. Triceps exten- sor cubiti. ANCONOID. Resembling the elbow. ANC'TER. A fibula or clasp to connect the edges of a wound. ANCUNNUEN'TA. A menstruating woman. ANCUS. From aynmv, the elbow. A distorted or stiff elbow. ANCYLOBLEPH'ARON. From a^x*, contraction, and fiMqapov, an eyelid. A dis- ease of the eye, by which the eyelids are closed. ANCYLOGLOS'SUM. From c>x^«, con- traction, and yhmtrea, the tongue. Tongue- tied. ANCYLOSIS. Anchylosis. ANDA. An Euphorbiaceous tree of Brazil, the fruit of which is an oval nut, containing two seeds. From these an oil is obtained possessing strong cathartic prop- erties, which has also an emetic effect. ANDFRA. A genus of plants of the order Mimosece. Andira Inermis. The cabbage tree. ANDRANAT'OMY. An h man, and avarsiau, to cut up. Dissection of the human body, particularly the male. ANDROG'YNUS. From anp, a man, ywH, a woman. An hermaphrodite. An effeminate man. ANDROMA'NIA. From awp, a man, and /uavta, fury. Nymphomania. ANDROMEDA. A genus of plants of the order Ericaceae. Andromeda Mariana. Broad-leaved moorwort; leather leaf. Andromeda Arborea. The sorrel tree. The leaves have an acid taste, and have been used in decoction in fevers. ANDROTOM'IA. Androtome ; from avap, a man, and rt/uva, to cut. The dissec- tion of the human body. ANDRUM. A name given by Ksempfer to a species of hydrocele, connected with elephantiasis, endemic in the south of Asia. ANEBIUM. From ava&aiva, to ascend. The alkanet is so called because of its quick growth. ANECPYE'TUS. That which is not likely to suppurate. ANEMIA. Anaemia. ANEMOMETER. From />« , water. A term applied in Chemistry to a salt which contains no water of crystal- lization •, also, to any substance deprived of water AXIL. The plant from which indigo is prepared. AXIL/IC or IXDIGOT'IC ACID. An acid formed by the action of nitric acid on indigo. AXILIXE. An alkaloid obtained by the destruction of various organic sub- stances. Jt is a volatile, colorless, pungent liquid. Formula, C 12 XH : . It is found in coal, tar oil, and in Dippel's oil. Dose gr. j. AX'IMA. From ov^sc, wind or breath. A word used to denote the principle of life. Also, a soul, or the intellectual manifesta- tions of man. Axima Aloes. Refined aloes. Axima Hepatis. Sal martis ; sulphate of iron. Axima Pulmoxum. The soul of the lungs. A name given to saffron, on ac- count of its being used in asthmas. Axima Rhabarbari. The best rhubarb. Axima Saturxi. Sugar of lead. Axima Vexeris. A preparation of cop- per. ANIMAL. An organized animated be- ing, endowed with the power of locomotion. The term, according to its common accep- tation, is restricted to irrational creatures. Animals are divided by Cuvier into four classes, viz. : 1. Vertebrata ; 2. MoUusea ; 3. Articulata ; and 4. Radiata. The verte- brated animals are those which have a spinal column, composed of vertebra? : the mollusca are those which have soft bodies, with no osseous framework, as the shell- fish ; the articulated are those whose bodies are supported by a hard external envelope, divided into numerous pieces, articulated together by a membrane in such a manner as to admit of free motiou, and which are moved bv means of muscles attached to ANI 53 ANN them interiorly ; the radiated, have all then- parts attached in a circular manner, with their mouth in the centre. Animal. Adjective. That which belongs to or concerns animals. An / imal Acid. An acid existing in animal bodies, or which can be obtained from them. Animal Charcoal. See Charcoal, An- imal. Animal Heat. The heat or caloric of the body of a living animal, resulting from, and necessary to, its vitality, and which enables it to preserve nearly a uniform tem- perature, whatever may be the external changes. Animal Economy. The conduct of na- ture in the preservation of the organism. The organism itself. Animal Jelly. See Gelatin. Animal Kingdom. The whole series of animated beings, from man to the lowest zoophyte. Animal Magnetism. Mesmerism. A theory of F. Mesmer, of the year 1776, refer- ring all phenomena of life to a magnetic fluid, universally diffused, which fluid, it is alleged, is influenced by external agents, especially by certain individuals peculiarly endowed with magnetic power. ANIMAL/CULE. A very small animal, invisible to the naked eye. A microscopic animal. Those best known are: 1. In- fusory Animalcules, Infusoria. Observed in. nearly all fluids impregnated with any animal or vegetable substance. 2. Sper- matic Animalcules. Supposed to have been discovered in the semen. ANIMALIZA'TION. The transforma- tion of the nutritive parts of food into the living structures of the body. AN'IME GUMMI. A resinous sub- stance obtained from the trunk of Hi/mencea courbaril, or locust-tree. ANIMUS. See Anima. AN / ION. A term applied by Faraday to the body which passes to the positive pole — to the anode of the decomposing body — as it is separated by electricity. ANISETTE 7 DE BOURDEAUX. A French liquor made by distilling anise, fen- nel, and coriander seed, with brandy, sugar and water. ANISI SEMINA. Aniseed. The seeds of the Pimpinella anisum. Much used as a carminative. ANI'SUM. Pimpinella anisum ; the an- ise plant. ANKYLOBLEPHARON. From aymM, a clasp, and f&htyapci, the eyelid. Adhesion of the eyelids to each other. ANKYLOGLOS'SIA. From a>*«xoc, crooked, or contracted, and yxao-o-a, the tongue. Restricted or impaired motion of the tongue. ANKYLOMERIS'MUS. From a>iwx», a contraction, and /utpoc, a part. Morbid adhesion between parts. ANKYLOSIS. See Anchylosis. ANKYLOT'OMUS. From a>*wx 0fr crooked, and re/utvw, to cut. A curved knife. ANNEAL 7 . From the Saxon, Annelan, to heat. To heat and cool slowly, as glass, gold or other metals. ANNEALING. The process of apply- ing heat to a metal for the purpose of re- moving brittleness and increasing its ductil- ity and malleability. Glass is rendered less frangible by the same process. Without annealing, glass flies to pieces very readily, as may be seen in Prince Rupert's drops. In many of the arts, the process of anneal- ing is a matter of great importance, and in none more so than that of the dentist. The gold employed for filling teeth, unless thoroughly and uniformly annealed, cannot be introduced, in a sufficiently thorough and substantial manner, to prevent its lia- bility of coming out, and at the same time to secure the perfect preservation of the organ. During the process of manufacturing gold into foil, it is necessary frequently to sub- ject it to the process of annealing, which consists, after it is reduced to leaves, in heating each leaf separately to a cherry-red heat, either over the flame of a spirit-lamp, or on a plate of stone or metal, over a fur- nace. But in annealing gold foil, different methods are adopted by different manufac- turers. (See Gold Foil.) In annealing gold, during its preparation for plate, less nicety is required. It simply consists in bringing the metal, after it has been cast into ingots, before it be planished, and also frequently during its lamination, to a cherry- red, by putting the gold upon charcoal, or rather peats, which have a more equal and lively flame, and covering it quite ANX 54 ANO up and taking care that the thin parts of the gold do not become hotter than the thick. "When the gold has by this process acquired its proper heat, it should be re- moved to hot ashes to cool, without coming in contact, more than possible, with the cold air, by which its temperature would be too suddenly changed. But gold and even silver are not so much affected by a sudden transition from heat to cold, as are many of the other metals, yet it does, to some extent, increase their brittleness. See Gold, An- nealing of. AXXEI/IDES. Annelida, annellati ; from aunulus, a little ring. The lowest order of Cuvier's class Articulata. Their body consists of a number of segments, each of which is a ring. The leech and earth-worm belong to this order. ANXOTTO. Annotta. A brownish-red substance obtained from the pellicles of the seeds of the Bixa orellana, a South Ameri- can tree. In the Arts it has been used for dyeing silks and cotton an orange-yellow ; and in Pharmacy, to color plasters. AN'NULAR. Annularis; from annu- lus, a ring. Shaped like a ring. Annular Bone. Circulus osseus. A circular bone, situated before the cavity of the tympanum in the foetus. Annular Cartilage. The cricoid car- tilage of the larynx is so called from its re- semblance to a ring. Annular Ligaments. A name given to certain ligamentous bands, as the annular ligament of the radius, which is of a fibro- cartilaginous structure, and which, with the lesser sigmoid cavity of the cubitus, forms a ring around the head of the radius; and the annular ligaments of the carpus and tarsus, to each of which there are two. Annular Vein. The name of a vein situated between the annular, or ring finder and little finger. AX'XULARIS. The finger between the little and middle fingers is so called, be- cause this is the one on which the weddino- ring is worn. ANNULATE. Annulatus. Furnished with rings or belts; surrounded by rings. AX'XULUS. A ring. In Anatomy, a circular orifice traversed by a tube, vessel, or other organs. In Botany, the name of the membrane which surrounds the stem of the fungi. An'nultjs Abdominis. The abdominal ring. An'nulus Albidus. The ciliary liga- ment, or circle. An'nulus Ovalis. The rounded border on the septum, occupying the place of the foramen ovale in the foetus. ANODE From aya, upward, and c^s?, a way. That part of the surface of a body decomposing under the influence of elec- tricity, at which the current enters. AXODOUS. Edentulus. From c, priv., and o«JW, a tooth. Without teeth ; toothless. An / odon. From a. priv., and bJo»c, a' tooth. In Zoology, the name of a genus of lamellibranchiate bivalves, the shell of which has no articular processes, or teeth, at the hinge. AN'ODYNE. Anodynus. From at, priv., and efun, pain. A medicine which relieves pain ; as opium and belladonna. Anodyne, Hoffman's. Spiritus JEthe- ris Sulpkurici Compositus ; which see. ANQDYNUM MARTIALE. Ammo- nio-chloride of iron, precipitated from water by potassa. Anodtnum Minerale. Nitrate of po- tassa. AN'ODYNIA. Absence of pain : in- sensibility. ANOMALOTROPHY. From a. priv., o^axc^, regular, and Tpta|, coal, and kali, potassa. A remedy in cutaneous diseases, formed by dissolving carbonate of potassa in boiling water and adding as much slacked lime as will separate the potassa. After filtering and evaporating, levigated coal is added, the result being a black homo- geneous powder. Dose of both simple and sulphuretted is about two grains, three times a day. ANSERFNA. Silver weed, or wild tansy. ANTAC / IDS. From anti, against, and acida, acids. Medicines which remove acidity in the stomach, as the carbonates of soda, magnesia, &c. ANTAGONIST. Antagonistes; counter- acting. A term applied, in Anatomy, to muscles which act in opposition to each other, as the flexors and extensors of a limb ANTAI/GIC. From avn, against, and akyog, pain. Medicines which relieve pain. ANTAI/KALINE. From avn, against, and alkali, an alkali. That which neutral- izes alkalies. AHTAYEROVIS'IAC. Antaphrodit'ic; from avn, against, and aqpoJto-iaitoc, aphro- disiacal. A term applied to medicines which repress the genital appetite. ANTAPODO'SIS. From avrajrofsfmpi, I return in exchange. Succession and re- turn of febrile paroxysms. ANT ART HRIT'IC. Antarthriticus ; from avn, against, and apSpiric, gout. Reme- dies against gout. ANTEFLEX'IO TFTERI. Anteflexion of the womb ; the fundus sinking forward between its cervix and the neck of the bladder. ANTEN'NtE. In Zoology, certain ap- pendages borne in the head of insects, crus- taceans, and some mollusks. ANTECEDEN'TIA. The premonitory symptoms of disease. ANTELA / BIA. From ante, before, and labia, the lips. The extremity of the lips. ANTEM'BASIS. From avn, against, and i/ufiatvu, I enter. The mutual reception of bones. ANTENEAS'MUS. From avn, against, and savTou, one's self. A description of mad- ness in which the patient attempts his own life. ANTERIOR AUR'IS. The name of a muscle of the ear. ANTERIOR INTERCOSTAL NERVE. A branch of the great intercostal nerve, given off in the thorax. ANTERIOR SPLINT. A splint con- structed of iron wire, the invention of Prof. N. R. Smith, of the University of Maryland, for the treatment of fractures of the leg. By the use of this splint, the patient with a fractured limb is placed in a position of ease and rest, instead of being in one immovable and constrained. ANTEVER'SIO UTERI. From ante, before, and verlo, to turn. A morbid incli- nation of the fundus of the uterus forward. ANT'HELIX. See Antihelix. ANTHELMINTIC. AntJielminticus ; from avn, against, and sa«/k, a worm. A remedy for the destruction or expulsion of worms. AN / THEMIS. From o»3-m». to blossom. A genus of plants of the order Composite. The chamomile. Anthemis Cotula. The systematic name of the plant called cotula fastida. Mayweed, dog-fennel, or wild chamomile. Anthemis Nob'ilis. The systematic name of the common chamomile. Anthemis Py / rethrum. The plant from ANT 56 AXT which the pyrethrum is obtained. The Spanish chamomile, or pellitory of Spain. ANTHER. From awStm, to blossom. The male sexual organ in plants, forming the summit of the stamen, and containing the pollen and fecundating substance. AXT HE 'SIS. From av$tu>, to blossom. The period when flowers expand. ANTHIARIN. The active principle of a gum-resin, obtained from the Anthiaris toxiearia, the most deadly of the upas poisons. ANTHONY'S FIRE, SAINT. Another name for erysipelas AX'THORA. From avn, against, and 3-e/ia, corruption. A term applied in Botany to a European species of Aconitum. or wolfsbane. AXTHRA'CIA. From arVf, coal. Car- buncular exanthem. An eruption of imper- fectly suppurating tumors, with indurated edges. Axthracia Pestis. The plague. AXTHRACIN. A volatile substance ob- tained from the distillation of coal in com- pany with naphthalan. Formula, C 30 H U . AX'THRACITE. From a^VI, a burning coal. A species of stone-coal, containing no bituminous substance, and yielding no in- flammable gases by distillation. AXTHRACCKSIS. Anthracia, carbo- palpebrarum, fromay3-pa£, coal. A species of carbuncle, which attacks the eyelids and eyeballs. * AXTHRACOK'ALI. From o»VI, coal, and kali, potassa. A remedy of recent in- troduction in the treatment of certain he- patic affections. AXTHRAX. From a»V£, coal. A hard, circumscribed, inflammatory tumor, resembling a boil, seated in the cellular membrane and skin on the back, which soon becomes gangrenous, and discharges an exceedingly fetid sanies. A carbuncle. AXTHROPO-. From ay^rcc, a man. A prefix to man? words, signifving human. AXTHROPOG'ENY. Anthropogenia ; from avbpa7rG;, man, and yiven;, generation. The study of the phenomena of the genera- tion of man. AXTHROPOG'RAPHY. From a»e f »- »o?, a man, and ypaoa, to write. A descrip- tion of the human organism. AXTHROP'OLTT E. From o,S; aTt? , a man, and x/Sj?, a stone. A petrifaction of human bones. AXTHROPOL'OGY. Anthropologia, from avBpuTros, a man, and >:>;?, a discourse. The doctrine of the structure and functions of the human body. ANTHROPOMETRY. From ay&p*™;, a man, and /usrpoi, measure. The admeas- urement of the proportions of the different parts of the human body. AXTHROPOPHAG'IA. From qt5:*tc;. a man, and t/*-a&>, to blow. A car- minative or remedy against flatulence. ANTIPLAS'TIC. From ovt/, against, and 7r\aro-a>, to form. Unfavorable to heal- ing or granulation, disorganizing. ANTIPLEURIT'IC. Antipleuriticus ; from avn, against, and 7rXivpiris, pleurisy. A remedy against pleurisy. ANTIPODAG'RIC. Antipodag'ricus ; from avn, against, and nrfaypa, the gout. Opposed to the gout. ANTIPRAX / IS. From avn, against, and irpaveu, I work. A contrary state of different parts in the same individual. ANTIPYRETIC. Antipyret' icus ; from avn, against, and 7rvpiroc, fever. Opposed to fever 5 a febrifuge. ANTIQUARTANA'RIUM. From a*™, against, and quartana, a quartan fever. A remedy for quartan fever. ANTIRACHITIC. AntirachWicus ; from avn, against, and rachitis, the rickets. Opposed to the rickets. ANTIRRHI'NUM. A genus of plants of the order Scrophularinece. Antirrhinum Elati'ne. The system- atic name of the plant called fluellen, or female speedwell. The elatine of the shops. ANTIPSOR'IC. From aw, against, and ■{mpa, the itch. Curative of the itch. ANTIPY / IC. From avn, and nvuv, pus. Preventing suppuration. ANTIPYRETIC. From avn, and iruptroc, fever. Curative of fever. ANTIPYROT'IC. From mt, and wmf t fire. Curative of burns. ANTISCOI/IC. Antiscol'icus ; from ovt/, against, and vKa>\»£, a worm. Opposed to worms. Anthelmintic. ANTISCORBUTIC. Antiscorbu'ticus. from avn, against, and scorbutus, the scur- vy. Remedies for the scurvv. ANTISCROF'ULOUS. Anii&truM, I eat. Inability to take food. APHELX / IA. From a.:£. a Maine. A lamp which burns without a flame. APHO'XIA. From a, priv., and $*w, the voice. A loss or privation of voice. APHO'RIA. From a, priv.. and } I respire. Difficult respiration. APNEOI/OGY. Apneologi'a. From an-voia, loss of breath, and xs>oc, discourse. A treatise on apncea. APO-. Atto. A Greek preposition, sig- nifying from, off, out, and used as a common prefix. APOCENO'SIS. From airo, out, and x.ivca>, to evacuate. A morbid flux of blood or other fluids. APO / COPE. From ano and kottoo, to cut. Abscission ; amputation ; extirpation. APOCRENIC ACID. A dark-colored acid, soluble in water and alcohol, found in soils, springs, &c. It is manifestly a product of decomposition. It is formed artificially by treating ulmin or humin with nitric acid. APOCYE'SIS. From a™ and ««/», to bring forth. Parturition ; bringing forth young. APOCYNA'CE^. An order of Dico- tyledonous plants, nearly agreeing with As- clepiadacece, but of more suspicious proper- ties. Trees or shrubs, usually with milky juice ; leaves opposite, sometimes inserted ; corolla monopetalous, hypogynous ; stamens inserted into the corolla ; ovaries two ; fruit a follicle, drupe or berry, single or double. APOCYNINE. A bitter principle from Apocynun camiabinum, or Indian hemp, or Dogsbane. APOCYNUM. A genus of plants of the order Hypocynacece. Dogsbane. Apocynum Andros^emifo'lium. Dogs- bane; Milk-weed. The root possesses emetic properties, — thirty grains producing about the same effect as twenty of ipecacuanha. Apocynum Cannabi'num. Indian hemp. This species is powerfully emetic and ca- thartic, and sometimes produces diuretic and diaphoretic effects. A'PODES. From a, priv., and ttov^ a foot. A term applied in Anatomy, to animals destitute of feet. In Zoology, to footless animals, and fishes which have no ventral fins. APOGALACTIS'MUS. From amyaxax. Tej;a>, to wean. Weaning ; removal of the infant from the mother's breast. APOGEU'SIS. From ano and ywc/ua t} to taste. Impaired sense of taste : ageustia. APOLEP'SIS. From av and \apfiat*, to take from. A suppression or retention of any of the natural evacuations. APOM'ELI. From am, from, and pi\t, APO 62 APP honey. An oxyrnel or decoction made of honey. APOMYLE'NAS. From anrepuKxan*, I make a wry mouth. Projection of the lips by pressing them against each other; it is sometimes a symptom of disease. APONEUROSIS. From am and v&por, a nerve. A fibrous or tendinous expan- sion, supposed by the ancients to be nerv- ous ; hence its name. APONEUROTIC. Relating to aponeu- roses. APO'XIA. From a, priv., and novo?, pain. ^Yithout pain. APOPEDA / SIS. From am and mifau, to jump from. A luxation.^ APOPHLEGMA'SIA. *From am and qxiy/xa, phlegm. A discharge of mucus. APOPHLEGMAT'IC. ApophlegmaV- icus ; from a^o and yxiypa, phlegm. Apo- phlegmatizan'tia. Medicines which excite mucous secretions from the mucous mem- brane of the mouth and nose, &c. APOPB7YLLITE. A mineral ; an hy- drated silicate of potassa and lime, some- times containing fluorine. APOPHYSIS. From am?™, to proceed from. In Anatomy, a projection or process of a bone. In Botany, the enlarged base of the capsule adhering to the frondose mosses. APOPLECTIC. From amm^m, apo- plexy. Belonging to apoplexy. AP'OPLEXY. Apoplex'ia; from am and 7r\ixrffu, to strike or knock down ; because when a person is attacked by this disease, he suddenly falls down. A disease characterized by a sudden loss of sense and motion, and stertorous breathing. The term is used by some to denote a sudden ef- fusion of blood into the substance of organs or tissues, but it is usually restricted to the brain, and the above are among the phenom- ena which characterize cerebral apoplexy. Apoplexy, Cutaneous. Sudden deter- mination of blood to the skin and subjacent cellular tissue. Apoplexy, Pulmonary. A violent de- termination of blood to the lungs, and effusion into the bronchial cells, followed by suffocation. APOPXIX'IS. From amTntyc, I stran- gle. Suffocation. APOPTO'SIS. From am™™, to fall down. The falling down of any part from relaxation 5 the relaxation of bandages. APO'RIA. From a, priv., aud Trcpoc, a duct. Restlessness caused by the stoppage of any of the natural secretious. APOSPTIA. From am, from, and «•/- re?, food. Loathing of food. APOSPASOIA. From ama-Trav, to tear off- A violent severance of a ligament or tendon. APOSPHACELFSIS. Mortification, usually resulting from bandaging wounds and fractures too tightly. APO STELLA. From c^o-t^/, to de- part from. An abscess. APOTHE'CA. From amr&H/m, to place. A place where medicines are kept. APOTHECARY. Apotheca'rius ; from am, and r&n/ut, pono, to put : so called, because his employment is to prepare and keep the various articles of medicine, and to compound them for the physician's use. In every country, except Great Britain, one who sells drugs, and puts up prescriptions. In addition to this, apothecaries in England exercise in certain cases, and nnder certain restrictions, the duties of the physician. APOTH'EMA. Am, and 6if*a, a de- posit. A brown powder deposited when vegetable extract is submitted to prolonged evaporation. APPARATUS. From apparo, to pre- pare. A collection of instruments or means for any business or operation whatever. In Anatomy, an assemblage of organs which work for the accomplishment of the same end, or a system of organs formed of a similar texture or having analogous func- tions. In General and Dental Surgery, a collection of the various instruments and appliances necessary for an operation or dressing-, also certain methods of operating for stone. In Chemistry, the instruments required for chemical experiments and investigations. Apparatus, Dental. See Dental Ap- paratus. Apparatus, Pneumatic. Instruments by which aeriform fluids may, in distilla- tions, solutions, and other operations, be caught, collected, and properly managed. APPAREIL. Apparatus. APPENDIC'ULA. A small appendage. Appendicula C-eci Vermiformis. A APY 63 AQU vermicular process, about four inches long, of the size of a goose-quill, which hangs from the iutestinum ccecum of the human body. Appendicula Cerebri. The pituitary gland. Appendicula Epiploica. The adipose appendices of the colon and rectum, which are filled with adipose matter. APPEN / D1X. From appendere, to hang to. An appendage ; something added to a principal or greater thing, though not nec- essary to it. In Anatomy, a part attached to, or continuous with, an organ. In Bot- any, the parts which project from the organs of plants. Appendix Auricularis. A process of the anterior and upper part of the auricles of the heart. APPETENCY. From appetere, to de- sire. The disposition of organized beings to imbibe and appropriate such substances as serve to support and nourish them; also, ardent desire for an object. APPETITE. From appetere, ad and petere, to desire. An internal desire, which warns us of the necessity of exerting our digestive or generative functions; a relish for food ; a desire for sensual pleas- ures. AP / PLE. The fruit of the Pyrus malus. Apple, Acid of. Malic acid. Apple, Adam's. See Pomum Adami. Apple of the Eye. The pupil. APPLICATION. ApplicaUo; from ay- plicare, to apply. In Therapeutics, exter- nal remedies, as opposed to medicines de- signed to be given internally. APPOSFTION. Adding to, sitting to, addition, accretion. In Dental Prosthesis, it is sometimes employed synonymously with coaptation. APTYS'TOS. From a, priv., and Trrveo, I spit. Without expectoration. APYRET'IC. ApyreVicus; from a, priv., and ttv^ fire. Without fever. A word applied to those days in which there is no paroxysm of disease. APYREX'IA. From a, priv., and nup- i%is, fever. Absence of fever. Intermission between the febrile paroxysms. APYROUS. From a, pr i v ., and imp, fire. A term applied to substances which contain a strong heat without change of shape or other properties ; refractory. A/QUA. U. S. Any natural water of good quality. This substance when in a pure state, is a transparent liquid, without color, taste, or smell, and is composed of one part hydrogen and eight of oxygen, by weight, and of two of hydrogen and one of oxygen by volume. Aqua Acidi Carbonici. Carbonic acid water. Artificial seltzer water. Aqua Ammonite. Water of ammonia. Aqua Amygdala'rum Concentra'ta. Water of bitter almonds. Aqua Anethi. Dill water. Aqua Brocchie / ri. A supposed styptic, which at one time attracted considerable attention in France, but which is said to possess no efficacy. Aqua Calcis. Lime water. Aqua Calcis Composita. Compound lime water. Aqua Carbonatis Soda Acidula. Acid- ulous water of carbonate of soda. Aqua Camphora. Camphor water. Aqua Chalybea / ta. An artificial min- eral water, consisting of citrate of iron highly charged with carbonic acid gas, and flavored by a little aromatic syrup. Aqua Carui. Caraway water. Aqua Cassia. Water of cassia. Aqua Chlorinii. Chlorine water. Aqua Cinnamomi. Cinnamon water. Aqua Distillata. Distilled water. Aqua Florum Aurantii. Orange flower water. Aqua Fluvialis. River water. Aqua Fontana. Spring water. Aqua Fortis. Weak and impure nitric acid. Aqua Funiculi. Fennel water. Aqua Lauro-cerasi. Cherry-laurel water. Aqua Marine. Beryl. Aqua Mentha Piperita. Peppermint water. Aqua Mentha Pulegii. Pennyroyal water. Aqua Mentha Viridis. Spearmint water. Aqua Picis Liquida. Tar water. Aqua Pimenta. Pimento water. Aqua Regia. A mixture of nitric and muriatic acids. AQU 64 AEA Aqua Rosjs. Rose water. Aqua Sambuci. Elder water. Aqua Sttp'tica. A powerful astrin- gent, composed of sulphate of copper, sul- phate of alumina, and sulphuric acid. Aqua Toffaxa. The name of a sub- tile, slow-consuming poison, prepared by a woman of that name in Sicily. Aqua Vitjs. Brandy. Aqua Yulxeraria. From vulmis, a wound. A remedy applied to wounds ; ar- qiiebusade. Aqujs Distilla't^e. Distilled waters, made by putting mint, pennyroyal, &c, iuto a still with water, and drawing off as much as is impregnated with the proper- ties of the plants. Aqu^e Mixera'les. Mineral waters. Aqu^e Stillati / tij3 Simplices. Sim- ple distilled waters. Aqu^e Stillati'ti^e Spirituos-e. Spir- ituous distilled water. AQ'UiEDUCT. Aquceduc'tus; aqueduct; from aqua, water, and ducere, to convey. In Anatomy, a term applied to certain ca- nals, occurring in different parts of the body, because they were supposed to carry water. Aqujeduct of Fallo'pius. A canal in the petrous portion of the temporal bone, first accurately described by Fallopius. Aqujeduct of Sylvius. A canal com- municating between the third and fourth ventricles of the brain. Aqu.educ'tus Cerebri. See Infundib- ulum of the Brain. Aqu^eductus Coch'le^e. A narrow ca- nal proceeding from the tympanic scala of the cochlea, to the posterior edge of the pars petrosa. Aqu^eductus Vestib'uli. A canal pro- ceeding from the vestibule near the com- mon orifice of the two semicircular canals, and opening at the posterior surface of the pars petrosa. AQUEOUS. Watery; composed of water, or resembling it in color and con- sistence. Aqueous Humor of the Eye. The limpid fluid which fills both chambers of the eye. AQUIFO'LIUM. From acus, a needle, and folium, a leaf; so called because it has a prickly leaf. Ilex aqui folium. Holly. A / QUILA. Literally, an eagle. A name given by the Alchemists to sal ammoniac, precipitated mercury, arsenic, sulphur, and the philosopher's stone. Aquila Alba Philosopho'rum. Aquila alba Ganymodis. Sublimated sal ammo- niac. Aquila Coslestis. A panacea, or uni- versal cure ; of which mercury was a con- stituent. Aquil^e Lig'xum. Eagle-wood. Aquiljs Ve^-zE. The temporal veins. AQUILE'GIA. A genus of plants of the order Ranunculacece. The herb Columbine. Aquile'gia Vulga'ris. Columbine ; a perennial herbaceous plant, formerly con- sidered diuretic, diaphoretic, and antiscor- butic. It has been employed externally as a vulnerary. AQUU / LA. Diminutive of aqua, water. Hydatid. A small aqueous tumor. Aquu'la Acous / tica. The fluid in the cavity of the vestibule of the internal ear. AR'ABIN. The chief constituent of Gum Arabic. Formula, C 12 H 10 Oi . AR'ABIC GUM. See Acacia Gum. AR'ACA MIRA. A shrub found in the Brazils, the roots of which are said to be diuretic and antidysenteric. ARACHNOID. Araclinoi'des; from afa-xji*, a spider, or spider's web, and w/c?, likeness. Cobweb-like. Arach'xoid Membraxe. Memhrana ar- achnoides. A thin membrane, without ves- sels and nerves, between the dura and pia mater, and surrounding the cerebrum, cere- bellum, medulla oblongata, and medulla spinalis. Its use is to protect the brain, and to secrete a fluid for the purpose of keeping it in a proper condition. ARACHNOIDITIS, or ARACHNI- TIS. Inflammation of the arachnoid mem- ' brane. ARxEOM'ETER. Areometer. From g/>q/- | o?, thin, and y.nf>oi, a measure. Hvdrom- eter. An instrument for ascertaining the specific gravity of liquids. ARJEO'TICA. From apato^ to rarefy. Medicines supposed to possess the quality | of rarefying the fluids of the body. ARA'LIA. A genus of plauts of the order Araliaceoz. Aralia Caxadex'sis. Ginseng. Aralia Hisz, a pipe. Another terra tor fistula in an©. AirCIFORM. From arcus, a bow, and forma, likeness. A term applied by Solly, to a set of curved fibres proceeding from the corpus pyramidale, beneath the corpus olivare, to the cerebellum. ARCTA'TIO. From arcto, I make nar- row. Contraction of a natural opening, as of a canal. A constipation of the intestines from inflammation. ARCTIUM LAP'PA. Burdock, the roots of which are diuretic, aperient, and sudorific. ARCTU'RA. From arcto, I straighten. Inflammation of the finger caused by a nail grown into the flesh. ARCUAL/IS. Arcuo, to bend like a bow. Applied to the coronal suture, and to the temporal bones. ARCUA'TIO. From areas, a bow. An anterior gibbosity of the sternum, dorsal vertebra?, or tibia. AR'CULiE. A diminutive of area, a chest. The sockets of the eyes. ARCULA COR/DIS. The pericardium. AR'CUS SEXPLIS. Opacity around the cornea, occurring in advanced life. AR'DENT. Ardens; from ardere, to burn. Burning, or ardent: applied to fe- vers ; also to alcoholic spirits. AR / DOR. From ardere, to burn. Burn- ing or intense heat. Ardor Ffbri'lis. Feverish heat. Ardor TTri/x^e. A scalding sensation produced by the urine in the urethra. Ardor Vextrh/uli. Heartburn. A'RE A. A vacant space ; a term applied by Celsus to two kinds of baldness: 1. Area diffluens, consisting of bald plots on the scalp of an indeterminate figure; and 2. Area serpens, baldness commencing at the occiput and winding to each ear, and some- times to the forehead. Area Peli/tj'cida. The areated space formed, after a few hours, around the first trace of the embryo in the incubated e^ff, by the middle portion of the germinal mem- brane. Area Vasculo / sa. The second space around the area pellucida, in which blood- vessels are formed. Area Vitelli / xa. A third space, sur- rounding the area vasculosa, which ulti- mately incloses the whole yolk. ARE / CA. A genus of palms, tonic and astringent. Areca Cat / echu. Areca Indica. From the nut of this plant two kinds of catechu are extracted, the cuttacamboo and cashcutti. AREFAC'TIOX . The process of drying substances previously to pulverizing them. ARE'XA. Sand. An old term applied to gravel deposited in urine. AREXA'TIO. From arena, sand. A sand-bath, or the application of hot sand to the body. In Anatomy, a term applied to the small interstices of the cellular or other tissues; and in Pathology, to an in- flamed ring around pustules. AR/ENOSE. Are'na, sand. Sandy; full of sand. ARE / OLA. A diminutive of area, a void space. The circle which surrounds the nipples of females. In Pathology, the disk which surrounds pustular inflamma- tions of the skin, also interstices between fibres. See Are'ola?. ARE'OL^E The plural of are'ola. is used by anatomists to denote the interstices between the fibres of an organ, or between vessels interlacing with each other. AREOLAR. Appertaining to an areola. Areolar tissue. Cellular tissue. Divided into areolae or small spaces. AREOMETER. See Ara?ometer. ARTtAXD LAMPS. Lamps with hollow or circular wicks, so called from the name of the inventor. AR'GEMA. From apys;, white. A small white ulcer of the eye. ARGEM/OXE. A genus of plants of the order Papaveraeeo?. Argemoxe Mexica'na. Thorn poppy; prickly poppy; the inspissated juice of which is said to be useful as a hydragogue in dropsy and jaundice. AR'GEXTAX'. German silver; an alloy of copper, nickel, and zinc. AR'GEXTATE OF AMMO'XIA. Ful- minating silver. ARGENTI CYAXURE'TUM. Cyan- uret of silver. A tasteless white powder, having no medical uses. Argex'tiXVtras. -ir^i'^/w nitra'tum: causticum hmare. Xitrate of silver. Lunar AEI 67 ARO brittle sticks, having' an intensely bitter taste; is deemed tonic, alterative, and anti- spasmodic, as an internal remedy; and ex- ternally it is employed as a vesicant, stim- ulant, alterative, and escharotic. ARGENTIFEROUS. Argentum, silver, andfero, to bear. Accidentally containing silver. Applied to minerals or ores. ARGEN / TUM. Ar' gyrus; from apyos, white; because it is of a white color. Silver. Argentum Folia'tum. Silver leaf. This, when not too thin, is sometimes used for filling teeth, but in consequence of its hard- ness and great liability to be acted upon by the secretions of the mouth, it is seldom employed for this purpose. Tin is by far preferable. Argentum Musi'vum. Mosaic silver; a preparation of tin and bismuth melted to- gether, with the addition of quicksilver. Argentum Nitra / tum. Nitrate of silver. Argentum Wvum. Quicksilver; mer- cury. ARGIL'LA. From apyoc, white. Argil; white clay. See Alumina. Argilla Pu'ra. Pure argil, or alumina. ARGILLACEOUS. Of, or belonging to argilla, or aluminous earth. Argillaceous Tooth Polisher. See Tooth Polisher, Argillaceous. AR / GILLOID. Argilla, clay, and «/«fo?, a form. Resembling argil. AR / GOL. Argal. Wine-stone; crude tartar; a concrete acidulous salt, deposited by wine. AR / GYRIA. Apyufw, silver. Disease caused by use, or abuse of salts of silver. ARICINA An alkaloid, analogous in its properties to cinchona and quinia, found in Cusco bark. ARIDITY. Arid'itas. A term employed in Pathology to express dryness of any part, especially of the chin and tongue. ARID / IUM. A new metal recently dis- covered by M. Ulgren, of Stockholm. It is found in the mineral chromate of iron of Reoras. Its oxides are analogous to those of iron, but exhibit distinct reactions. ARIS / TA. In Botany, the sharp, stiff, bristle-like appendage from the husk or glume of grasses. In Zoology, the long slender bones in the muscular structure of fishes, unconnected with the skeleton, called the Ossieula musculorum, and very numer- ous in the shad. ARISTA LTHvE'A. Althca'a. The com- mon marsh mallow. ARISTOLOCHI'A. From apt//a, perfume; from. apt t intensely, and e£», to smell. Spiritus rec- tor. The odorous principle of plants and other substances. ARS 68 ARS AROMATIC. Aromat'icus ; from apm- jua, an odor. Anything which has a grate- ful spicy scent, and an agreeable pungent taste, as cinnamon, ginger, cardamoms, mint. &c. Aromatic Vin'egar. An acetic solution of camphor, oil of cloves, rosemary, and lavender. ARRACEE'MENT. From arracher, to tear out. The separation of a part of the body, tearing it from the part with which it was connected. The term is sometimes ap- plied to the extraction of a tooth. AR'RAGONITE. A mineral of a green- ish pearly-gray color. It is a carbonate of lime, containing a little carbonate of strontia. AR / RAPHON. From a, priv., and pay*, a suture. Without suture. A term applied to the cranium when it has no sutures. ARRHCE'A. From a, priv., and /»«■>, I flow. The suppression of any natural flux. Amenorrhoea. ARRIERE' DENT. Dens serotinus. A wisdom tooth. ARROW ROOT. The fecula of the root of the Maranta arundinacea, a plant which grows in the West Indies. See Maranta. ARSE / NIATE. From arsenicum, ar- senic. A salt formed by a combination of arsenic acid with salifiable bases. Arsenate of Ammonia. Ammonia*, arsenias. A crystallized salt, formed by a combination of arsenic acid and ammonia, or carbonate of ammonia. Arseniate of Iron. Ferri arsenias. A salt formed by double decomposition, by adding a solution of sulphate of iron to one of arseniate of soda. It precipitates in the form of a dirty green powder. AR / SENIC. Arsenicum. The name of a metal of a blackish or steel-gray color. It is found native, as an oxide, and a sulphuret. Its symbol is As ; its combining number 753. Arsenic and its various preparations -are among the most active of all poisons. The only known antidote is the hydrated sesquioxide or peroxide of iron. It should be preceded by the use of emetics, or the stomach pump. Arsenic Acid. Acidum Arsenicum. Arsenic, Oxide of. White arsenic. Arsenious acid. Arsenic, White. Oxide of arsenic, or arsenious acid. Arsenic, Iodide of. Arsenici Iodidum. A combination of arsenic and iodine- Used in cutaneous diseases ; also in form of an ointment in the proportion of three grains to the ounce of lard. Internally the dose is a tenth of a grain. ARSENICAL CAUSTIC. A prepara- tion composed of two parts of levigated antimony and one of white arsenic. ARSENICA'LIS LIQUOR. Fowler's solution ; arsenical solution. ARSENICAL PASTE. Pate Arsenicale. A French composition, used as an applica- tion to malignant ulcers, composed of seventy parts of cinnabar, twenty-two parts dragon's blood, and eight parts arsenious acid, made into a paste with saliva. ARSENICUM ALBUM. White arsenic. ARSENIOUS ACID. White arsenic. Oxide of arsenic. Ratsbane. This com- pound is prepared by digesting the metal in dilute nitric acid. It combines with the earthy and akaline bases, forming arsenites. This powerful agent has been extensively employed, both in America and Europe, for destroying the pulps of decayed teeth, but in consequence of the great liability of a tooth, after the destruction of its lining membrane, to give rise to inflammation of the alveolo-dental membrane, and abscess, its indiscriminate use is rapidly falling into disrepute. Dr. Spooner, of Montreal, was the first to use arsenious acid for the destruction of an exposed dental pulp, but the discovery was first made known to the dental profession, by his brother, Dr. S. Spooner, of Xew York, through the medium of a popular treatise on the teeth, published in lboti. The application of a fortieth or fiftieth part of a grain, with an equal quantity of the sulphate of morphia, to an exposed den- tal pulp, will destroy its vitality in from three to seven hours, and often without causing any unpleasant sensation, but in most instances it is productive of more or less pain. It should always be used with great care, to preveut it from coming in contact with the mucous membrane of the mouth, or from becoming displaced, and being swallowed. To prevent any accident of this sort, the cavity in the tooth should be tightly and securely sealed up with wax. or cotton saturated with sandarach varnish. AET 69 ART The following preparations known as nerve pastes are in use: R. Arsenious acid, gr. xxx; Sulphate of morphia, gr. xx ; Creasote, q. s. M. To form a thick paste. R. Ar- senious acid, gr. x ; Sulphate of morphia, gr. xx ; Creasote, q. s. M. To form a thick paste. ARSENIS POTASS.^. Arsenite of potash. ARSENITE. A salt formed by the union of arsenious acid with a base. Arsenite of Copper. Scheele's green. Arsenite of Potash. Liquor arseni- calis. ARSENOVFNIC ACID. An acid pro- duced by the action of arsenic upon alcohol. ART. The application of a system of rules to the performance of certain actions. Art, Healing. The application of the rules of medicine in the treatment of dis- ease. Art, Dental. The application of the rules of dental surgery to the treatment of the diseases of the teeth, and the replace- ment of the loss of these organs. ARTANECK. Arsenic. ARTAN'THE ELONGA'TA. The Pharmacopoeial name (Dub. Ph.) of the matico plant. See Matico. ARTEMISIA. So called because it was first used by a queen of that name, or from Apnfxtc, Diana, because it was formerly em- ployed in the diseases of women, over whom she presided. A genus of plants of the order Composites. Artemisia Abrot'anum. Common southernwood. Artemisia Absinthium. Absinthium vulgar e. Common wormwood. Dose of absinthium, £)j to ij. Artemisia Chinen'sis. Moxajaponica. Mugwort of China. Artemisia Glacia'lts. Mountain worm- wood. Artemisia Juda'ica. Santonicum. See Artemisia Santonica. Artemisia Marit'ima. Absinthium maritimum. Sea wormwood. Artemisia Pon'tica. Absinthium pon- ticum. Roman wormwood. Artemisia Rupes'tris. Creeping worm- wood ; sickly wormwood. Artemisia Santonica. The Tartarian southernwood, or wormseed. Artemisia Vulgaris. Mugwort. ARTERIA. From a»p, air, and r»puv, to keep, because it was supposed by the ancients that they contained air. An artery. ARTE / RIAC. A medicine prescribed for diseases of the trachea. ARTETfcliE ADIPCKStE. The arteries which secrete the fat about the kidneys. ARTF/RIAL. Arterio'sus. Belonging to the arteries. Arterial Blood. The red blood is so called because it is contained in the arteries. The pulmonary veins also contain red blood, on which account they have been called ar- terial veins. Arterial System. All the arteries of the body. ARTERIALIZA'TION. The conversion of the venous into arterial blood ; a term applied to the change which the blood un- dergoes as it passes through the lungs, pro- duced by the evolution of carbonic acid and the absorption of oxygen. ARTERrOLA. A small artery. ARTERIOI/OGY. Arteriolog'ia; from afmipia, artery, and xoyos, a discourse. A treatise on the arteries. ARTERIOSTEIE. From apwpta, artery, and oa-Tsov, a bone. Ossification of an artery. ARTERIOSUS DUCTUS. See Ductus Arteriosus. ARTERIOT'OMY. Arteriotom'ia; from apr»pta, an artery, and Ttpva, I cut. The opening of an artery to draw blood. ARTERITIS. From apnpta, an artery, and ids, inflammation. Inflammation of an artery. AR / TERY. Arte'ria. A firm and elastic cylindrical tube, composed of three mem- branes, a common or external, a muscular, and an internal, for conveying the blood from the heart. There are but two main arteries, the pulmonary artery and the aorta J all the rest are branches. The first origi- nates from the right ventricle of the heart, and the second from the left. It is by means of the arteries that the blood is conveyed to every part of the body. The pulsation of the arteries corresponds with that of the heart. The principal arteries of the body are mentioned in the following table: ART 70 AET Table of the Arteries. 1. The pulmonary artery. The pulmonary artery, soon after emerg- ing from the right ventricle of the heart, divides into two branches, a right and a left, which are distributed to the lungs. 2. The aorta. The aorta arises from the left ventricle of the heart, and is the great trunk from which the other arteries of the body are derived. These are given off in the following order. At its origin it gives off, 1. The anterior cardiac, or right coro- nary artery. 2. The posterior cardiac, or left coronary artery. At the arch it gives off three branches, 1. The arteria innominata, which divides into the right carotid and right subclavian. 2. The left carotid. 3. The left subclavian. The carotids are divided into external and internal. The external gives off, 1. The superior thyroid. 2. The lingual. 3. The labial or facial. 4. The inferior pharyngeal. 5. The occipital. 6. The posterior auris. 7. The internal maxillary, which gives off the spinous artery of the dura mater, the maxillary, and several branches which go to the palate and orbit. 8. The temporal. The following branches are given off from the internal carotids, 1. The ophthalmic. 2. The middle cerebral. 3. The communicans. The following are the branches given off by the subclavian arteries, 1. The internal mammary, which sends off the thymic, comes phrenici, pericardiac, and phrenico-pericardiac arteries. 2. The inferior thyreoid, from which the tracheal, ascending thyroid, and transfer- salts humeri are derived. 3. The vertebral, which forms within the cranium the basilar artery, which gives off the anterior cerebelli, the posterior cerebri, and many other branches. 4. The cervicalis profunda. 5. The cervicalis superficialis. 6. The superior intercostal. 7. The supra-scapular. When the subclavian arrives at the ax- illa, it receives the name of the axillary artery, and the latter when it reaches the arm is called brachial. The following are the branches given off by the axillary artery. 1. Four mammary arteries. 2. The sub-scapular. 3. The posterior circumflex. 4. The anterior circumflex. The following branches are given off by the brachial artery. 1. Many lateral branches. 2. The profunda humeri superior. 3. The profunda humeri inferior. 4. The great anastomosing artery. At the bend of the arm, the brachial artery divides into the ulnar and radial arteries. The ulnar gives off. 1. Several recurrent branches. 2. The common interosseal. 3. The palmaris superficialis, the pal- mar arch, and the digital. The radial artery gives off the following branches. 1. The radial recurrent. 2. The superfcialis voice, after which it divides into the palmaris profunda, and the digitals. The arteries given off by the descexdixg aorta in the thorax are, 1. The bronchial. 2. The oesophageal. 3. The inferior intercostals. 4. The inferior diaphragmatic. In the abdomen the aorta gives off, 1. The cceliac, which, at the distance of half an inch from its origin, divides into three branches : the gastric or coronary ar- tery, 2. the hepatic, and 3. the splenic. The hepatic artery, before it reaches the liver, gives off: 1. the right gastroepiploic, and 2. the cystic artery. The splenic artery gives off the pancreatica magna, the left gastro- epiploic, and the vasa brevia. 2. The superior mesenteric, which gives off, 1. the colica media, 2. the colica dextra, and 3. the ileocolica. 3. The inferior mesenteric. 4. The emulgent or renal arteries. 5. The spermatics. AET 71 AET 6. The lumbar arteries. 1. The middle sacral. After giving off the foregoing, the aorta divides into two branches, called the inter- nal and external iliac arteries. The internal iliac or hypogastric artery gives off, 1. The ilio-lumbar. 2. The lateral sacrals. 3. The obturator. 4. The middle hemorrhoidal. 5. The gluteal or posterior iliac. 6. The ischiatic. 7. The pudica interna, from which the inferior hemorrhoidals, the transverse pe- rineal, and the dorsalis penis arise. The external iliac or great artery of the lower extremity gives off, 1. The epigastric. 2. The circumjlexa ilii. After passing under Poupart's ligament, the artery of the lower extremity takes the name of femoral artery, and gives off, 1. The profunda. 2. The anastomotica. When it reaches the ham, it is called the popliteal artery. It here gives off articular branches, and below the joint divides into the anterior and posterior tibial. The anterior tibial gives off, 1. The recurrent. 2. The internal malleolar. 3. The external malleolar. 4. The tarsal. 5. The metatarsal. 6. The dorsalis hallucis. The posterior tibial gives off the following, 1. The peroneal or fibular. 2. The nutritia tibiae,. 3. The internal plantar. 4. The external plantar, which passes obliquely outwards and forwards to the base of the fifth metatarsal bone. It then turns obliquely inwards to the interval between the bases of the first and second metatarsal bones, where it inosculates with the com- municating branch from the dorsalis pedis, thus completing the plantar arch. The Digital Branches are four in number, and supply the three outer toes and half the second toe. Artery, Angular. See Facial Artery. ARTHANITIN. A crystalline substance, found in the root of the Cyclamen europceum. ARTHRAL/GIA. ArlhronaV gia ; from apSpcv, a joint, and a\yo; f pain. Pain in the joints. ARTHRITIC. Arthrit'icus ; from afi- pi-rti, the gout. Pertaining to the gout. ARTHRFTIS. From apfyv, a joint. The gout. See Podagra. ARTHROC'ACE. From aftnv, a joint, and xaKia, defect. Disease of the joints, and especially caries of the articular sur- faces. The term is also applied to spina ventosa. ARTHRO'DIA. From aftpcv,-*, joint. A movable articulation or connection of bones, in which the head of one is applied to a superficial cavity of another, so that it can be moved in every direction. ARTHRODYN'IA. From ap&fov, a joint, and oSuva, pain. Pain in a joint ; chronic rheumatism. See Rheumatism. ARTHROI/OGY. Arthrologia; from apSpiv, a joint, and a 03,0c, a description. A description of the joints. ARTHRON. Ap&poi. A joint. ARTHRON'CUS. A/>fy», a joint, and cyKos, a mass, a swelling. A distinct carti- laginous body (one or more) which some- times forms within the knee-joint. Some- times applied to tumefaction of a joint. ARTHROPATHIA. Afipov, and raSou An affection of the shoulder-joint with violent pain and swelling of the brachial portion. ARTHROPHLOGO'SIS. Ap&pov, and tpxoyoo), to inflame. Inflammation of a joint. ARTHROPUO'SIS. From apSrpoy, a joint, and nvov, pus. Suppuration, or a col- lection of pus in a joint. ARTHRCKSIA. From ap&poa, to articu- late. Arthritis ; inflammation of the joints. A genus of diseases in Good's Nosology, embracing rheumatism, gout, and white swelling. ARTHROSIS. From aftpoa, to articu- late. An articulation. ARTHROSPON'GUS. From apfycv, a joint, and rTroyyc?, a sponge. A white fungous tumor of the joints. ARTIC'ULAR. Articularis ; from ar- ticulus, a joint. Pertaining to a joint. Articular Arteries of the Knee. Several small branches are given off from | the popliteal artery, which surround the AET 72 AET tibiofemoral articulation, and from tbeir situation, are designated by this name. They are divided into superior and inferior, and there are generally three of the former and two of the latter. Articular Veins of the Knee. These generally follow the course of the arteries. ARTICULA'TA. A term applied in Zoology to a primary division of the animal kingdom, characterized by an external artic- ulated covering, consisting of a series of rings, corresponding to the internal skeleton of vertebrated animals. ARTICULATION. Articulatio ; from articidus, a joint. The connection of bones with each other. Articulations are gener- ally divided by anatomists into three kinds ; namely, diarthrosis, synarthrosis, and am- phiarthrosis. In Physiology, the formation of distinct syllables or words by the organs of speech. In Botany, the connection of the parts of a plant by joints. Articulation of Dental Substitutes. The adjustment and arrangement of one or more artificial teeth, so that it or they, if there be more than one, when placed in the mouth, shall sustain the same relationship to the organs with which they antagonize, when the jaws are closed, as the natural teeth do previously to their loss. Articulation of the Teeth. See Teeth, Articulation of. Articulation, Temporo-Maxillary. See Temporo-Maxillary Articulation. Articulation of Models. See Models for Artificial Teeth, Antagonizing. Articulation, False. A false joint formed between the united extremities of a fractured bone, or between the articular ex- tremity of a luxated bone and the parts with which it is in contact. Articulator. An instrument used in Mechanical Dentistry for holding the models in position while the artificial teeth are being arranged upon the plates. ARTICULATES. Articulate. Jointed. ARTIFICIAL. Artijici'alis. That which is formed by art. Artificial Dentine. A preparation composed of pure gutta, while in a softened state, mixed with mineral substances, and used for temporary fillings. See Hill's Stopping. Artificial Eye. A sort of hollow hem- isphere, painted so as to represent the anterior part of the globe of the eye, and enamelled, applied beneath the eyelid. The manufacture of artificial eyes has been bronght to such perfection in Paris, that it is difficult for a common observer to dis- tinguish the difference between them and the natural organs. Artificial Joint. A fracture united by the broken ends of the bone becoming rounded and smooth, and connected by a fibrous, ligamentous substance ; a false joint. Artificial Lower Lip and Chin. It sometimes happens that persons are de- prived of the lower lip and chin by wounds or other causes, so as greatly to interfere with the utterance of speech and the reten- tion of the saliva. To remedy such loss, various contrivances have been invented, varied in their construction to suit the pecu- liarity of the cases to which they have been applied. In the construction of an appliance of this sort, the first thing to be done is to take an impression of the lip and chin of a per- son, resembling, as near as possible, in these parts of the face, the individual requiring such substitute. From this im- pression, suitable plaster and metallic models and counter-models are obtained. Between these a platina plate may be stamped, which, after being fitted to the parts to which it is to be applied, should be enamelled and properly colored. But the best substitute of this sort which has been invented, is described by M. Delabarre in his Traite de la Partie Mecan- iquede VArtedu Chirrirgien Dentiste. It consists of a thin layer of gum elastic in solution, applied to a plaster model. After this has become dry, another and another is applied, then a piece of hempen cloth, after which, three more layers of a solution of gum-elastic are put on. Upon these a piece of fine linen is spread, and over the whole a piece of kid, properly colored, is glued. This substitute is kept in place by means of two straps of cloth, covered with kid, properly painted. If the subject be a man, false whiskers are applied, which will more effectually conceal the mode of attachment. To the end of each strap a piece of metal may be AET 73 AET fixed, and bent so as to be secured to the ear, or the straps may be fastened behind the head. For greater security it is recommended that metallic plates be fixed to the sides of the artificial chin, which may be made fast and concealed in the folds of the cravat. Artificial Upper Lip. In the con- struction of an upper lip, the method of procedure is very similar to that for supply- ing the loss of the lower ; the only difference consists in the method of attachment. Besides the straps covered with beard, two plates are fastened to it, which pass up along the nose, and secured to a pair of preservers, whose branches serve as a means of attachment. We should think the best method of retaining an artificial upper lip in its place, would be to fix means of attachment on the inner side, which might be secured to the teeth. But a substitute for either the upper or lower lip cannot be so constructed as to be worn without inconvenience, and it is fortunate that they are seldom required. The method of procedure consists, first, in taking an accurate impression of the void occasioned by the destruction of the natural organ, then making a model to fit the inequalities of the parts ; and afterwards obtaining a metallic model and counter- model, between which a thin plate of gold or platina is swaged. After fitting this accurately to the parts, it should be en- amelled and painted to correspond with the rest of the face. Artificial Nose. As in the case of artificial lips, it is impossible to construct a substitute for the nose that can be worn without some inconvenience, yet the latter is by far more frequently called for, and happily can be made to subserve a much better purpose, as it can be more perma- nently and securely applied. The methods of attachment are various. The simplest is by means of a slip of leather, painted flesh color, passing up over the middle of the forehead, and made fast under the hair. But this method is objec- tionable. The leather is visible, and it does not afford a firm and secure support to the artificial appliance. Another method con- sists in attaching to the interior of the nose a superior and two lateral wings, which are made to act above and on each side in such a way as to retain the piece in its place; but it has been found that these cause not only a loss of the soft tissues against which they are made to act, but that they are liable to give rise to disease. Mr. Ballif, however, reports the case of a woman who had lost her nose in conse- quence of a syphilitic disease, for whom he constructed an artificial substitute with three wings, which he moved by means of a spring made to work by means of a button fixed in one of the nostrils. Although it caused a little pain at first, he states that this did not last long, and that she did not ultimately suffer any serious inconvenience from it. When the loss of the organ is the result of disease, as is almost always the case, it is generally complicated with the loss of other parts, generally of the hard and soft palate, which also, as far as practicable, require replacement; and in this case the two may be connected together in such a way as to serve as a mutual support for each other. Artificial Palate. A mechanical con- trivance for supplying the loss of the whole or a portion of the hard or soft palate, or both. The simplest description of substi- tute of this sort, consists in a thin plate of gold, fitted to the gums covering the pal- atine portion of the alveolar border, behind the dental arch ; concave inferiorly, and convex superiorly, and confined by means of clasps fitted to one or more teeth on each side of the mouth. But this, while it pre- vents, to some extent, the passage of fluids and food from the mouth into the nose, remedies but very partially the defective utterance of speech, while the sharp edge of the plate posteriorly, if it be extended sufficiently far back to separate the buccal from the nasal cavities, is apt to interfere with and irritate the tongue. But whatever may be the description of substitute em- ployed, the advantages derived from it will greatly depend upon the accuracy of its adaptation and the extent of its surface. In the application of an artificial palate, it often becomes necessary to connect with it one or more artificial teeth, which can easily be done by extending the plate over so much of the alveolar ridge as may be required for the last-named substitute. ART 74 AET Delabarre, Desirabode, Stearns, Hulli- ben, Blandy and Kingsley. have inveuted substitutes of this sort, some of which, es- pecially Kingsley's, answer a most excel- lent purpose. For a full description of the various appliances which have been em- ployed for remedying defects of the palatine organs, the reader is referred to Harris's Dental Surgerv, ninth edition. ARTIFICIAL RESPIRATION. See Respiration, Artificial. ARTIFICIAL TEETH. Contributing, as the teeth do, to the beauty and pleasing expression of the countenance — to correct enunciation, to the function of mastication, which they are the chief agents in perform- ing, and to the health of the whole organ- ism, — it is not surprising that their loss should be considered a serious affliction, and that art should be invoked to replace such loss with artificial substitutes. So great, indeed, is the liability of the human teeth to decay, and so much neglected are means of their preservation, that few persons reach even adult age without losing one or more of these invaluable organs. But happily for suffering humanity, thev can now be replaced with artificial sub- stitutes so closely resembling those planted in the jaws by the hand of nature, as almost to elude detection, even by the most critical and practised observers. Though there is a perfection in the works of nature that can never be equalled by art, artificial teeth can, nevertheless, be so constructed and applied as to subserve, to a considerable extent, in the majority of cases, the purposes of the natural organs, though not as perfectly, nor with the same convenience to the person wearing them. There are difficulties connected with the insertion of artificial teeth which none but an experienced practitioner has any idea of. Besides those of properly constructing and a PPl v i D g them in such a manner, as that they may be easily removed and replaced by the patient, and at the same time be se- curely fixed in the mouth, and in such a way a~ not to produce injury to the parts with which they are connected or associated, there are sometimes others equally difficult to overcome. For example : the loss of a tooth in one jaw is generally followed by the gradual protrusion from its socket of the one with which it antagonized in the other, so that if that be replaced with an artificial tooth of equal size, it will strike against this at each occlusion of the mouth, and prevent the other teeth from coming together. This tendency of the teeth in one jaw to protrude is always in proportion to the number lost in the other: and if not soon counteracted by the replacement of the latter with artificial substitutes, it often gives rise to an obstacle to their proper application, which will require no little ingenuity and tact to overcome. If it were necessary, the author could mention other difficulties connected with this branch of practice, equally great, but will let it suffice to state that there are few, formidable as they oftentimes are, which the well-informed and skilful dentist cannot overcome. Substances employed for Artificial Teeth. Among the substances which have been employed for replacing the loss of teeth, are, 1. The crowns of human teeth; 2. The teeth of neat cattle, sheep. &c ; 3. The ivory of the elephant's and hippo- potamus's tusk; and lastly, mineral or por- celain teeth. Human Teeth. The crowns of human teeth are preferable to any other osseous substance, and when used for this purpose they should be of the same class as those whose place they are designed to supply. If well selected, and properly inserted, the artificial connection with the alveolar ridge cannot easily be detected. The durability of these teeth, when thus employed, depends on the density of their structure, the soundness of their enamel, and the condition of the mouth in which they are placed. If they are of a close texture, and have sound and perfect enamel. and are inserted in a healthy mouth, they will last from six to twelve, or a greater number of years. Teeth of Cattle. Of the various kinds of osseous substance employed for dental sub- stitutes, the teeth of neat cattle are. perhaps, after the human teeth, the best. By slightly altering their shape they may be made to resemble very closely the incisors of some persons ; but a configuration similar to the cuspidati cannot be given to them : and in the majority of cases they are too white and glossy to match any of the human teeth. AET 75 AET There are other objections to the use of these teeth. In the first place, they are only covered anteriorly with enamel, and, in the second, their structure is less dense than that of human teeth, and consequently they are more easily acted on by chemical agents. They are, therefore, less durable, seldom lasting more than from two to four years. Ivory of the Tusk of the Elephant and Hippopotamus. The employment of ivory for artificial teeth has been sanctioned by usage from the earliest periods of the ex- istence of this branch of dentistry, but we must not hence conclude that it has been approved by experience. On the contrary, of all the substances that have been used for this purpose, this is certainly the most ob- jectionable. The ivory of the elephant's tusk is more permeable than that obtained from the tooth of the hippopotamus. So readily does it ab- sorb the fluids of the mouth, that, in three or four hours after being placed there, it becomes completely penetrated with them. Consequently it is liable to chemical changes; and when several teeth, formed from it, are worn, they affect the breath to such a degree as to render it exceedingly offensive. The ivory of the tusk of the hippopotamus is much firmer in its texture, and, as it is covered with a hard thick enamel, teeth may be cut from it, which will, at first, very much resemble those given us by nature. There is, however, a peculiar animation about the natural teeth which those made from this substance do not possess. They, moreover, soon change their color, assuming first a yellow, and then a dingy or dark bluish hue. They are also, like those just men- tioned, very liable to decay, and to give to the air, returned from the lungs, an insuffer- ably offensive odor, which cannot be cor- rected or prevented. They may be washed half a dozen times a day, and taken out and cleansed again at night, and it will still be grossly perceptible. But objectionable as this substance is, it is still employed by a few practitioners, and twenty years ago it was used by one-half of the dentists in the country. Mineral or Porcelain Teeth. The manu- facture of porcelain teeth did not for a long time promise to be of much advantage to dentistry. But by the ingenuity and inde- fatigable exertions of a few, they have al- most entirely superseded every other kind of artificial teeth. The French, with whom the invention of these teeth originated, encouraged their man- ufacture by favorable notices ; and the re- wards offered by some of the learned and scientific societies of Paris contributed much to their improvement. They were still, how- ever, deficient in so many qualities, that they received the approbation of very few of the profession, and then only in some few cases. It is principally to American dentists, that we are indebted for that which the French so long labored in vain to accom- plish. A want of resemblance to natural teeth, in color, translucency, and animation, was the great objection urged against the porce- lain ; and, had not these objections been obviated, they would have prevented them ever being extensively employed. Formerly, all that were manufactured had a dead, opaque appearance, which rendered them easy of detection, when placed alongside of the natural teeth, and gave to the mouth an unhealthy and sickly aspe'ct. But so great have been the improvements in their manu- facture, that few can now distinguish any difference between them and the natural organs. The advantages which these teeth possess over every sort of animal substance, are numerous. They can be more nicely fitted to the mouth, and be worn with greater con- venience. They do not absorb its secretions, and consequently, when proper attention is paid to their cleanness, they do not contam- inate the breath, or become, in any way, offensive. They never change their color. They are not acted on by the chemical agents found in the mouth; and hence the name incorruptible, which has been given to them. At the establishment of Dr. S. S. White, to whom great credit is due for the perfection attained in the manufacture of Porcelain teeth, four hundred thousand teeth are made per month. Artificial Teeth— Different Methods of Applying. The methods of applying arti- ficial teeth are, 1. On the roots of the natural teeth. 2. On a plate with clasps. 3. With spiral springs. 4. By atmospheric pressure. AET 76 AET The peculiar advantages of each of these methods we shall point out briefly, as well as the cases in which they are particularly applicable. Artificial Teeth placed on Natural Roots. This method of inserting artificial teeth, on account of its simplicity, was formerly more extensively practised than any other. If the roots on which they are placed be sound and healthy, and the back part of the jaws supplied with natural teeth, so as to prevent those with which the artificial antagonize from striking them too directly, they will subserve the purposes of the natural organs very perfectly. When thus placed, they rest on firm bases, and if they are properly fitted and secured, their connection with the nat- ural roots cannot easily be detected. But unfortunately the incisors and cuspidati of the upper jaw, are the only teeth which it is proper to replace in this way. The insertion of an artificial tooth on a diseased root, or on a root having a diseased socket, is always followed by injurious effects. The morbid action already existing in the root or its socket, is aggravated by the operation, and often caused to extend to the contiguous parts, and, sometimes, even to the whole mouth. Nor is it always proper to apply a tooth immediately after having prepared the root. If any irritation is pro- duced by this preparatory process, the tooth should not be inserted until it has wholly subsided. The neglect of this precaution not unfrequently gives rise to inflammation of the alveolo-dental periosteum and alveolar abscess. For the manner of preparing a root and applying a tooth to it, see Harris's Dental Surgery. Artificial Teeth mounted on a Plate with Clasps. This method of applying artificial teeth, on account of its more extensive ap- plicability, may be considered as more val- uable even than that of placing them on natural roots. By this means, the loss of a single tooth, or of several teeth, in either or both jaws, may be supplied. A plate may be so fitted to an aperture in the dental cir- cle, and secured with clasps to the other teeth, as to afford a firm support to six, eight, ten or twelve artificial teeth. Teeth applied in this way, when properly constructed, may last for many years. But it is necessary to their durability that they should be correctly arranged, accurately fitted, and substantially secured to the plate, and that the plate itself be properly adapted to the gums, and attached to the teeth that are firmly fixed in their sockets. Gold, was for a long time almost the only metal employed for making the plate and clasps. This, for the former, should be from twenty to twenty-one carats fine, and from eighteen to nineteen for the latter. If gold of an inferior quality be used, it will be liable to be acted on by the secretions of the mouth. Platina, when the teeth are to be united to the plate by means of a fusible silicious cement, answers a good purpose; but there are few persons in the United States who understand melting and recon- verting the scraps into plate ; and when this cannot be done, the use of it is attended with great loss. Artificial Teeth with Spiral Springs. When attached to plates, the only difference between the method last noticed, of applying artificial teeth, and the one now to be considered, consists in the manner of con- fining them in the mouth. The former is applicable in cases where there are other teeth in the mouth to which clasps may be applied ; the latter is designed for confining whole sets and parts of sets, where clasps or other means of attachment cannot be con- veniently employed for their retention. When plates are employed, the teeth are attached to them in the same manner as when clasps are used ; but instead of being fastened in the mouth to the other teeth, they are kept in place by means of spiral springs, one on either side of the artificial denture, between it and the cheeks, passing from one piece to the other. Atmospheric or Suction Method of Ap- plying Artificial Teeth. The method last described of confining artificial teeth in the mouth, is often inapplicable, inefficient and troublesome, especially for the upper jaw ; and it is in such cases, more particu- larly, that the atmospheric or suction method is valuable. It was for a long time thought to be applicable only for an entire upper set, because it was supposed that a plate sufficiently large to afford the neces- sary amount of surface for the atmosphere to act upon could not be furnished by a AET 77 AKY piece containing a smaller number of teeth. Experience, however, has proven this opinion to be incorrect. A single tooth may be mounted upon a plate presenting a surface large enough for the atmosphere to act upon it sufficiently for its retention in the mouth. For a like reason it was thought that the narrowness of the inferior alveolar ridge would preclude the application of a plate to it upon this principle, and in this opinion the author participated; but he has suc- ceeded so perfectly in confining lower pieces by this means, that he rarely finds it neces- sary to employ spiral springs for double sets. Spiral springs are now, but seldom used, and only in cases where malformation exists to such a degree as to render the use of the atmospheric method, or retention by means of clasps, impossible. The firmness of the adhesion of the plate or base to the gums, to which the teeth are attached, depends upon the extent of the surface which the plate presents, and the accuracy of its adaptation. It is also im- portant that the teeth should be so arranged and antagonized, that they shall strike those in the other jaw all the way around at the same instant. This is a matter that should never be overlooked, for if they meet on one side, before they come together on the other, the part of the plate or base not pressed on, will be detached, and the admis- sion of air between it and the gums will cause it to drop. The application of artificial teeth on this principle has been practised for a long time ; but the plates formerly used were ivory instead of gold, and could seldom be fitted with sufficient accuracy to the mouth to exclude the air ; so that, in fact, it could hardly be said that they were retained by its pressure. Unless fitted in the most perfect manner, the piece is con- stantly liable to drop, and the amount of substance necessary for such a base renders it awkward and clumsy ; and besides, ivory absorbs the fluids of the mouth so readily, that after being worn for a few weeks it becomes exceedingly offensive. Gold, Pla- tina, Vulcanized Rubber, and Aluminum, are the bases upon which artificial teeth are now placed, and all of these materials an- swer an excellent purpose for plates con- structed on the atmospheric or suction method. Aluminum promises to become a valuable substitute for the other metals. See Aluminum. The application of artificial teeth upon this principle originated with the late Dr. Gardette, of Philadelphia; and we believe that soon after he made his first successful experiment, Mr. John Woffendale, of New York, constructed a dental substitute for the upper jaw, which was retained in the mouth in the same way; and at the time he did it he was not aware that it had ever been done by any one else. The adhesion may be greatly increased by the formation of an air-chamber in the plate opeuing upon the gum or roof of the mouth. Other methods, as the ligature and trans- planting, have been employed in the appli- cation of artificial teeth ; but as they have long since been abandoned, a description of them in this place is not deemed necessary. See Porcelain Teeth. ARTOCAR'PUS. From apros, bread, and Kop-offj fruit. A genus of plants of the order Artocarpece. Artocarpus Incisa. The bread fruit tree. Artocarpus Integrifolia. The Jack fruit tree. Caoutchouc. ARTO WELL. A cataplasm of bread and honey. ARUM. A genus of plants of the natu- ral order Aroidece. Arum Dracun'culus. The systematic name of dragonswort. Arum Macula'tum. Common arum, or wake-robin. The root is the medicinal part of this plant, and when recent is acrimoni- ous. There are also several other species of Arum. ARUNDINA'CEOUS. Fromarundo,a. reed. Reed-like ; pertaining to a reed. ARUN'DO. A genus of plants of the order Graminece. A reed. Arundo Phargmi / tes. The common reed. It has been used in syphilis. Arundo Saccharif'era. The sugar cane. ARVINA. Old. name for hogslard. ARVUM. Vulva. ARYT^E'NO. Belonging to the ary- tenoid cartilage. ARYT^ENO-EPIGLOTTID^E / US,Or ArYT^ENO- ASA 78 ASC Efiglot'ticus. That which belongs to the arytenoid cartilages and epiglottis. ARYTENOID. Arytcenoi'des. From flpTfwo, a funnel, and ufoc, shape. A term applied in Anatomy to two cartilages of the larynx, and the muscles, glands, &c, con- nected with them. Arytenoid Cartilages. The name of two cartilages of the larynx. Arytenoid Glands. Small glandular whitish bodies, anterior to the arytenoid cartilages. ARYT^ENOIDE'US. The name of a muscle which passes from one arytenoid cartilage to the other. It is divided by some anatomists into three portions. Aryt^noideus Major. See Arytse- noideus Transversus. Aryt^enoideus Minor. See Arytse- noideus Obliquus. Arytjenoiueus Obliquus. The name of a muscle of the glottis. Arytenoid eus Transver'sus. An azy- gos or single muscle of the glottis. ARYTH'MUS. Appv^oc ; from a, priv., and puS-fAos, rhythm, measure. A term sometimes applied to an irregular pulse. ASAB. See Borozail. ASAFCE'TIDA. Assafce'tida ; from the Hebrew word asa, to heal. A gum- resin; the concrete juice of the Ferula asafoztida. An Umbelliferous plant. It is antispasmodic, expectorant, emmenagogue, and anthelmintic when injected into the rec- tum. Dose in pill, gr. x to ^ss. AS AGIN. Dragon's blood. ASAGR^/A OFFICINALIS. The name of the plant from which is obtained the alkaloid veratria. ASAPHA'TUM. From a, priv., and o-apwc, clear. A cutaneous affection, con- sisting of collections in the sebaceous fol- licles of the skin, which, when pressed out, look like small black-headed worms. ASAPHFA. From a, priv., and rayvs, clear. Defective utterance or articulation resulting from disease of the palate. ASARABAC'CA. From asarum, a kind of plant, and bacca, berry. A small stemless, hardy European herbaceous plant, of the order Aristolochiacece. AS / ARIN. A sort of stearoptene ob- tained from the Asarum Europ&um. AS 7 ARUM. From <*, priv., and trmpttv. to adorn ; so called because it was not ad- mitted into ancient coronal wreaths. A genus of plants of the order Aristolo- chiacea 3 ,. Asarum Canaden'se. Asarum Caro- linia'num. Canada snakeroot; wild gin- ger. ASBES / TOS. Asbes'tus. A mineral more or less flexible and fibrous. The an- cients manufactured cloth from it for wrap- ping up dead bodies when exposed on the funeral pile. In consequence of its being a non-conductor of caloric, the application of it to the bottom of cavities of very sensi- tive teeth was recommended by Dr. S. Brown, in the American Journal of Dental Science, to prevent the painful sensation sometimes produced in cases of this sort, by cold or hot fluids, or air, when taken into the mouth. As a non-conductor of caloric it possesses every desirable property, and it is as indestructible in a tooth as gold. It is also used in Mechanical Dentistry, mixed with plaster, as a substitute for sand, to form the investment preparatory to solder- ing. ASCARIDES. See Ascaris. AS / CARIS, plural Ascarides. From ao-Kipigvj to leap. A genus of intestinal worms, comprehending a great number of species. Ascaris Vermicula'ris. The thread or maw-worm, found in the rectum. Ascaris Lumbricoi / des. The long round worm. ASCEN'DENS. From ascendere, to ascend. Ascending. A term applied in Anatomy to parts which have their origin lower than their termination. ASCEN'SUS MORBI. The ascent or increase of a disease. ASCFTES. From *o-zos, a sack or bot- tle; so called because of its bottle-like pro- tuberance. Dropsy of the abdomen, or rather of the peritoneum, characterized by fluctuation, increased size of the abdomen, &c. ASCLE'PIAS. A genus of plants of the order Asclepiadaceo?. Ascle / pias Asthmatic a. A creeping plant of the Isle of France. Coromandel ipecacuanha ; supposed to be a specific in asthma. Asclepias Gigante'a. Mudar : au East ASP 79 ASP Indian plant possessing purgative, alterative and diaphoretic properties. Asclepias Syri'aca. Syrian dogsbane, the juice of which is an acrid poison. Asclepias Tubeiu/sa. Butterfly-weed ; pleurisy-root. The root is sometimes used in pulmonary affections ; it is diaphoretic, and slightly cathartic. Asclepias Vincetox'icum. Vincetox- icum. Swallow-wort. It is said to possess hydragogue properties, and was formerly thought to be beneficial in cutaneous erup- tions. ASCO'MA. From «v£tc, pulse. This term was originally employed to signify privation of pulse, but it is now applied to suspension of all the vital phe- nomena produced by causes operating on the respiratory organs, but in which life is not actually extinct. Dr. John Mason Good divides asphyxia into four varieties: 1. Asphyxia svffocationis, asphyxy produced by hanging or drowning. 2. Asphyxia mephitica, chokedamp, or asphyxy pro- duced by inhaling carbonic acid or some other irrespirable exhalation. 3. Asphyxia electrica, Electrical asphyxy, produced by a stroke of lightning or electricity. 4. As- phyxia algida, frost-bitten asphyxy, pro- duced by intense cold. The effects of asphyxy upon the teeth are peculiar. It causes their bony or osseous tissue to be slightly injected with red blood, giving to them a faint red or purplish tinge. This is particularly observable in the teeth of persons who have been drowned or hung, ASS 80 AST or who have died of the Asiatic cholera, and demonstrates, beyond doubt, the vascu- larity of these organs. See Resuscitation. Asphyxia Idiopath'ica. Fatal syncope, caused by relaxation of the heart. Asphyxia, Local. Gangrene. Asphyxia Neonatorum. A term ap- plied to asphyxy of new-born infants. ASPID'IUM. A genus of plants of the order Filices. Male fern. Aspidium Fi'lix Mas. Male fern ; po- lypody. The root has acquired great celeb- rity for its effects upon tape-worm. ASPI'S. Actt/j. Asp, Aspic. The ancient name for the Egyptian viper, supposed to be the serpent which killed Cleopatra. ASPLE'NIUM. A genus of ferns of the order Filices. Asplenium Adian'tum Nigrum. Leek fern ; black maidenhair, used as an astrin- gent and pectoral. Asplenium Cet'erach. The systematic name of spleenwort. Miltwaste, used in diseases of the chest and in nephritic and calculous affections. Asplenium Filix F(e'mina. Female fern. Asplenium Ru'ta Mura / ria. Wall-rue; white maidenhair. It has been used as a remedy for abscess of the lungs. Asplenium Scolopen'drium. The sys- tematic name of scolopendrium. Hart's tongue. Asplenium Trichom'anes. The system- atic name of trichomaues. Common maid- enhair, or spleenwort. ASPRE'DO. Gr. syn. rpx^ajux. Asper, rough. A hardness and unequal roughness between the eyelids. AS / SALA. Old name for the nutmeg. ASSAFCE'TIDA. See Asafcetida. ASSAY 7 . From the French, essayer, to try. A chemical process, the object of which is to determine the quantity of metal coutained in any mineral, or metallic mix- ture, by analyzing a small part of it. There are two processes, the dry, and the humid or wet. By the first the metal is ex- tracted by the agency of fire and fluxes, and it is by this assay that ores are bought and sold. The second is more accurate, and is accomplished by dissolving the ore or other substances in acids and precipitating the metals from the solution. When the term assay is used alone with- out the qualifying name of any metals, it usually alludes to the analysis of an alloy of gold or silver, or both; and is sometimes equivalent to parting. ASSIMILATION. Assimilatio; from assimilare, to make like to. The conversion of food into nutriment, a function common to all organized things, animal and vegetable. Nutrition. ASSODES. Asodes; from ar«, loathing. A fever attended with internal fever, anxiety and loathing of food. ASTATIC. From a, priv., and o-txu, to stand. A term applied to the magnetic di- rection of one needle neutralized by another, the two standing in any position, but not constantly north and south. ASTHENIA. Asthen'ic; from a, priv., and rSsKOff, strength. Debility; want of strength. ASTHENOI/OGY. The science of dis- eases arising from debility. ASTH'MA. From xvb/uxfa to breathe with difficulty. Difficult respiration, recur- ring at intervals, attended with a sense of stricture across the breast, and in the lungs, with a wheezing cough. It is placed by Dr. Cullen in the class Neuroses, and order Spasmi. ASTHMATIC. Affected with, or re- lating to asthma. ASTIGMATISM. From «, priv., and , to order. In Physiology, irregularity in the functions of the body, and in Pathology, in the symptoms of a disease. ATAX'O-ADYNA'MIC FEVER. Ty- phus fever ; so called because of the ine- quality of its nervous symptoms, and the prostration of strength which attends it. ATE. A terminable syllable, which, added to the name of an acid ending in ic, expresses a combination of that acid with a base 5 as nitrate of silver, or a combination of nitric acid with the oxide of silver. ATECH'NIA. Anaphrodisia. ATELECTASIS PULMO'NUM. Pneu- monatelectasis. Imperfect dilatation of the lungs at birth, or coming on occasionally during the first weeks of life. AT'ELES. Atsa»c. In Zoology a genus of monkeys. In Anatomy, imperfect, de- fective. ATELOCHEKLIA. From a-mac, im- perfect, and x UK0 <: lip- Imperfect develop- ment of the lip. ATELOENCEPHA'LIA. From *t«a„ ? , imperfect, and e>Jcep*Aoir, the encephalon. Imperfect development of the brain. ATELOGLOS'SIA. From *ti\»c, im- perfect, and yhuHrr*., tongue. Imperfect development of the tongue. ATELOGNA'THIA. From *T,x« f , im- perfect, and yvxS-oc, the jaw. Imperfect development of the jaw. ATELOMYEL/IA. From *«m»c, im- perfect, and /kwsao?, marrow. Imperfect development of the spinal marrow. ATELOPROSO'PIA. From «, I sustain, be- cause it sustains the head ; or from the fable of Atlas, who was supposed to sustain the world upon his shoulders. The name of the first vertebra. ATMIATRI'A. Atmidiatrice. From AT/uoc, vapor, gas, and /*t/>«*, treatment. The treatment of disease by the action of vapors or gases. ATMOM'ETER. Admidom'eter. From ATO 82 ATE <*Tt/er, vapor, and jutrpov, a measure. An instrument invented by Professor Leslie for measuring the quantity of vapor exhaled from a moist surface in a given time. ATMOSPHERE. From a^ 3f , vapor, and », life. One of the constituents of atmospheric air. See Nitrogen. Azote, Protoxide of. A gaseous oxide of nitrogen. AZ'OTIZED. Impregnated with azote or nitrogen. AZO'TIC ACID. Nitric acid. AZOTU'RIC. A class of diseases char. acterized by a great increase of urea in the urine. AZUI/MIC ACID/ A black substance deposited during the spontaneous decom- position of hydrocyanic acid. AZURE STONE. An azure blue min- eral, the Lapis lazuli, from which the un- changeable blue color, ultramarine, is pre- pared. AZURITE. Prismatic azure spar. See Lazulite. AZ'YGOS. From «, priv., aud £,>o?, a yoke, because it has no fellow. Applied to single muscles, veins, bones, &c. Azygos Muscle. A muscle of the uvula. Azygos Proc'ess. A process of the sphenoid bone. Azygos U'vulje. A small muscle of the uvula. Azygos Veix. Vena sine pari. A vein situated in the right cavity of the thorax, receiving its blood from the vertebral, inter- costal, bronchial, pericardiac, and diaphrag- matic veins, and discharging it into the vena cava superior. AZYMUS. Unfermented bread. AZZLE TEETH. Molar teeth. B. B, in the chemical alphabet, is mercury. It is also the chemical symbol of boron. BA. The chemical symbol of barium. B. A. BaVneum Are'nce. A sand-bath ; which see. BAC / CA. A berry. Fruit having seeds; a pulpy pericardium inclosing seeds con- nected by a delicate membrane, dispersed through the pulp, as in the gooseberry. BAC / CHFA. From bacchus, wine. A red or pimpled face resulting from intem- perance. Gutta Rosacea. Acne. BACCIF'ERUS. From bacca, a berry. Berry-bearing. Plants which bear berries are called by this name. B AC / ULUS. Literally a stick, and hence the name of a lozenge, shaped into a little, short roll. BAKER'S ITCH. A species of Psori'- asis diffu'sa, resulting from the irritating qualities of yeast. BAI/ANCE. Bilanx; from bis, twice, and lanx, a dish. Literally, the double dish. A pair of scales for weighing bodies, con- sisting of a beam suspended exactly in the middle with a scale or basin attached to each extremity of equal weight. BALANCE ELECTROMETER. An in- strument for estimating the mutual attrac- tion of oppositely electrified surfaces. BAL / ANISM. Baxavic, a pessary. The application of a pessary. BALANITIS. Inflammation of the glans penis and prepuce. BA / LANOS. Balanus. An acorn. The glans penis. BALANIOS. A gem, a sort of carbuncle. BA'LANO-POSTHITIS. Inflammation of the glans penis and prepuce, attended by a fetid, muco-purulent discharge. BAL / ANUS. BatA.*vo?, an acorn, a gland. The glans penis, and glans clitoridis. B ALB CITIES. From balbutio, to stam- mer. Stammering; a defect of articulation, the causes of which are but little understood. BALLIS'MUS. From 0aM{* } to dance. Chorea; St. Vitus's dance. BALLOONS In Pharmacy, a spherical glass vessel with a cylindrical neck, to serve as a receiver in condensing vapors from a retort. BALLO'TA LANA'TA. A Siberian plant, supposed to be diuretic, recommended by Brera in rheumatism, gout, and dropsy. BALLOTTEMENT. French. The mo- tion imparted to the foetus in ulero, by an impulse of the fingers or hand. BAL 88 BAL BALM. The name of several plants or shrubs ; anything which soothes or mitigates pain. Balm of Gilead. Balsam of Gilead; Mecca Balsam. BALNEOI/OGY. A treatise on baths; the science of baths. BAL/NEUM. A bath or bathing house. Balneum Animale. An animal bath. A term used to indicate that application of heat which was made by opening a newly killed animal and applying it to a part or the whole of the body. Balneum Arenjs. The sand-bath. Balneum Marine. In Chemistry, the salt water bath. Balneum Siccum. Balneum arenas. Balneum Vaporis. The steam bath. BAL/SAM. Balsamum; from baal sa- men, Hebrew. The name of any natural vegetable resin, concrete or liquid, having a strong odor, inflammable, not soluble in water, but readily dissolved in volatile oil, alcohol, or ether. There are five natural balsams; namely, those of Peru, and Tolu, Benzoin, solid styrax, and liquid styrax. Besides these, there are a number of phar- maceutical preparations and resinous sub- stances which have a balsamic odor, that have received the name of balsam. But these last are termed artificial balsams. Balsam Apple. Momordica balsamina. Balsam of Arcxeus. An ointment made by melting together 2 parts of mutton suet and 1 of lard, 1^ of turpentine, and as much resin. Balsam, Canada. Canada turpentine; balsam of fir; the product of the Abies bal- samea. It is transparent when fresh, of a slightly yellowish color, of the consistence of honey ; has an acrid bitterish taste, and a strong agreeable odor. Balsam, Carpathian. The product of the Pinus cembra, or Siberian stone pine of the Alps and Carpathian Mountains. Balsam, Chalybeate. A mixture of nitrate of iron, alcohol, and oil. Balsam, Commander's. Compound tinc- ture of Benzoin. Balsam, Cordial, of Sennertus. A stimulant, composed of musk, ambergris and the oils of citron, cloves, and cinnamon. Dose 6 to 15 drops. Balsam, Friar's. Tr. Benzoin comp. Balsam, Green, of Metz. A green caus- tic oil used in atonic ulcer. It is composed of fixed oils, holding in solution subcarbon- ate of copper, sulphate of zinc, turpentine, aloes, and the essential oils of lcoves and juniper. Balsam, Hungarian. A product of the Pinus pumilio, growing in the mountains of Switzerland, Austria, and Hungary. Balsam, Htpnot / ic. A preparation of opium, hyoscyamus, camphor, &c, used ex- ternally to procure sleep. Balsam, Hyster / ic. A preparation of opium, aloes, asafoetlda, castor, oils of rue, amber, &c. It is held to the nose, or rub- bed on the abdomen in hysterical cases. Balsam, Indian. Balsam of Peru. Balsam of Copaiva. The juice of the Copaifera officinalis and other species of copaifera. Dose, gtt. xx to £j. See Co- paiba. Balsam of Fierabras. A Spanish vul- nerary balsam, mentioned by Cervantes. Balsam of Fioravente. This name has been applied to various products of the dis- tillation of resinous and balsamic substances. Balsam of Fourcroy or of Laborde. A liniment used in chapped skin and cracked nipples. It is composed of aromatic plants, balsams, resins, aloes, turpentine, theriac and olive oil. Balsam of Fir. Balsam of Canada. Canada turpentine. Balsam of Gilead. Balm of Gilead. A resinous juice of the Amyris gileadensis, which, by exposure, becomes solid. Balsam of Genevieve. An ointment used in contused wounds, gangrene, &c. It is made of wax, turpentine, oil, red saun- ders, and camphor. Balsam of Honey (Hill's). A pec- toral mixture, made of tolu, honey (aa lb. j), and spirit (a gallon). Balsam of Hoarhound (Ford's). A tincture of hoarhound, liquorice root, cam- phor, opium, benzoin, dried squills, oil of aniseed, and honey. Balsam of Leictoure of Condom or Vincequine. A strongly stimulant and ar- omatic mixture of camphor, saffron, musk, and ambergris, dissolved in essential oils. The ancients used it for dispelling or over- coming unpleasant odors. Balsam of Life (Hoffman's). A stim- BAL BAN ulant tincture, composed of essential oils and amber. Balsam of Locatelli, or Lucatelli. A mixture formerly administered in phthisis. It is composed of wax, oil, turpentine, sperry, and balsam of Peru, colored with red saun- ders. Balsam, Nephritic (Fuller's). A liquid medicine obtained by the action of sulphuric acid on certain oils, resins, and balsams. Balsam, Nervous. An ointment com- posed of fat, volatile oils, balsam of Peru, camphor, &c, used in sprains and rheu- matism. Balsam of Pareira Brava. A domes- tic compound of balsam, resin, chloride of ammonium, and powder of the root of Pa- reira brava. Balsam of Peru. The juice of My- roxylon tolaiferum. Dose, gr. x to xxx. Balsam, Paralytic, of Mynsicht. A liniment of the essential oils of different aromatic plants, of turpentine and amber. Balsam of Rackasi'ra or of Rakasi / ri. A yellowish-brown substance, brought from India in gourd-shells, and used in diseases of the urinary and genital organs, especially in blennorrhagia. Balsam, Riga. Balsamum carpaticum. The juice of the young twigs of the pinus cembra. Balsam of Saturn. A solution of ace- tate of lead in turpentine, evaporated and mixed with camphor. Balsam of the Samaritan. A liniment made by boiling together equal parts of wine and oil. Balsam of Sulphur. Oleum sulphu- ratum. An extremely fetid, acrid, viscid fluid, resulting from the reaction of sulphur upon olive oil at a high temperature. Balsam, Sympathetic. An unguent made of blood, human fat, and the raspings of the human skull, applied to the instru- ment which inflicted the wound. Balsam, Thibault's. A tincture of myrrh, aloes, dragon's blood, hypericum flowers, and Chian turpentine. Balsam of Tolu. The juice of the My- roxylon toluiferum. Dose, gr. x to xxx. Balsam of Turpentine. The red res- idue of the distillation of oil of turpentine in a glass retort. Balsam, Vervain's. Tinctura Benzoini compositi. Balsam, Vulnerary, of Mindkrerus. A liniment made of turpentine, resin, oil of clenri, oil of hypericum, and wax. Balsam Weed. Jewel-weed ; touch-me- not. BALSAMATIO. The process of em- balming dead bodies. BALSAM / IC. Balsamicus ; from 0a\- cttfjLov, balsam. Having the qualities of balsams. BALSAMODEN'DRON MYRRHA. A plant of the order Terebinthacece, the tree which yields the gum-resin myrrh. BALSAMUM. A balsam. Balsamum Canadense. Canada balsam ; which see. Balsamum Carpaticum. See Riga bal- sam. Balsamum Gileadense. See Balsam of Gilead. Balsamum Libani. See Riga balsam. Balsamum Peruvianum. See Balsam of Peru. Balsamum Tolutanum. See Balsam of Tolu. Balsam Traumaticum. Vulnerary bal- sam. Compound tincture of benzoin. Balsamum Vitje. A name formerly ap- plied to several artificial balsams. BALUX. A name applied to iron sands containing gold. BAMBALIA. Stammering. BAMBAX. Cotton. BAMBOO. A plant of the reed kind, growing in India and other warm climates. BANAN'A. A tropical tree ; a species of the Musa, the fruit of which is exten- sively used as an article of diet. BANDAGE. A piece of cloth for sur- rounding parts of the body in surgical oper- ations, or binding up a wound. A bandage may be simple or compound. The first consists of a simple piece of cloth intended to encircle a limb or part. The second, of two or more pieces united. Names ex- pressive of the manner of its application and its shape have been given to the band- age ; as the circular, the spiral, the spica, the Jigure-of-eight, the T bandage, the re- current, the four -tailed, &c. In the circular bandage the turns pass nearly horizontally around portions of the BAN 90 BAE limb, of equal diameter, one turn overlap- ping the other at fixed intervals. The spiral bandage ascends a more or less conical portion of the limb, each suc- ceeding turn partially overlapping the other at fixed intervals. The spica bandage is named from the re- semblance of the turns to the position of the grains on an ear of wheat. The figure-of-eight bandage is generally applied about the joints. When applied only to the knee, and not a continuation of a bandage down the limb, it is commenced with two circular folds or turns around the leg just below the joint, and the cylinder carried obliquely upwards across the ham, around the thigh, and again downwards as before described. The T bandage consists of a simple band- age with one or two pieces added at right angles. The recurrent bandage is about five yards long and two inches wide ; it is applied to the head as follows : The roller is first passed two or three times around the head in a line running just above the eyebrows, the ears, and below the occipital protuberance; next at the centre of the forehead, the cylinder is reversed and carried directly over the head to the circular turns behind, where it is again reversed, and carried back to the forehead, overlapping the former about one- third, as usual; these reverses to be contin- ued until first one and then the other side of the head is covered ; and the whole is com- pleted by two or three firm circular turns, as at the commencement. The reverses are to be held by an assistant. The four-tailed bandage consists of a piece of muslin, six or eight inches wide, and a yard or more in length, torn at either extremity to within three or four inches of the centre. It is applied to the lower jaw as follows : The centre being placed over the chin, the upper slips are carried back be- hind the neck and tied, or crossed and passed around the forehead once or twice, and se- cured by pins at the side ; the lower strip is passed directly up to the vertex, where it is tied, or again brought down and tied under the chin. Bandage, Fox's. See Fox's Bandage. BANDY LEG. A leg in which the bones are curved outward or inward. BANG. An intoxicating liquor prepared from the leaves of the Cannabis Indica, or Indian hemp. BANII/LA. Epidendrum vanilla. BA'OBAB. The Adansonia digitata, a gigantic tropical tree. The bark has been used as a substitute for cinchona. BAPTICA COCCUS. The kermes in- sect. BAPTIS'IA TINCTO'RIA. Wild in- digo. The root in small doses is laxative, but in large doses is emetic and cathartic. BARBA'RIA. Rhubarb. BARBARY GUM. A variety of gum Arabic, said to be obtained from the Acacia gummifera. BAB BIERS. A terra applied to a para- lytic affection of the tropics, followed by loss of voice, emaciation, and prostration of strength. BARDAN'A. Burdock. BARII/L A. Impure soda obtained from the ashes of different plants that grow on the sea-shore. BA / RIUM. From baryta, from which it is obtaiued. The metallic basis of the earth baryta. BARK. A name formerly applied to three species of Cinchona. Bark Caribe'ax, or Saint Lccici'a Bark. Sometimes improperly called Cin- cho / na Caribo3 / a. The bark of the Exos- tem'ma Caribo3 / um. It is a useful substi- tute for cinchona, and though it contains neither quinia nor cinchona, is one of the most valuable of the spurious barks. BARLEY. The fruit of the Eordeum distichon. See Hordei Semina. BAROXTETER. From 0*j»e, weight, and /uirpsv, measure. An instrument for ascertaining the weight of air. BAROSCOPE. Bapoc, weight, andr*o™, to observe. A barometer sensible to the slightest atmospheric variations. BAR'RAS. The resin which exudes from wounds made in the bark of fir trees. BARREN. Unfruitful, sterile. A term applied in Botany to a flower which has no pistil. BARTHOLINIAN.E GLANDULE. The sublingual glands named after Bartho- lin. BARWOOD. A red dye-wood brought from Africa. BAS 91 BAS BARYOCOCCALON. The Datura Stra- monium. B A R YECOI'A. From &*pvs } heavy, and *xe«, hearing. Deafness. BARYPHO'NY. From 0*p<, heav 7> $a>vn, the voice. Difficulty of speech. BARY'TA. From @*pve, heavy ; so call- ed because of its ponderosity. An oxide of barium. A simple alkaline earth of a gray color, very ponderous, and not easily fused. Baryta, Hydriodate of. Iodide of ba- rium. Baryta, Muriate of. Chloride of ba- rium. BARYTES. Baryta. BASAAL. An Indian tree, the leaves of which, made into a decoction, are used as a gargle in diseases of the fauces. The kernels of the fruit are anthelmintic. BASALT. Trap-rock of a dark green, gray, or black color, consisting of silica, alumina, oxide of iron, lime, and magnesia. B AS ANITE. A variety of silicious slate, sometimes used for testing the purity of gold by the color of its streak. Mortars for pulverizing medicines were formerly made of it. BASCULA'TION. A word of French derivation, applied to the half see-saw move- ment of the uterus, in examinations of that organ in retroversion, the fundus being pressed upward and the cervix drawn down- ward. BASE. Basis, from /3*/v&>, I go, I rest, I support myself. The foundation or support of anything; the principal ingredient of a compound. In Chemistry it is applied to alkalies, earths, metals, sulphurets, organic and other compounds, in their relations to acids, metalloids, and salts. In Medical Prescriptions and Pharmacy, the principal constituent of a compound. In Dental Sur- gery, a metallic, ivory, or India-rubber plate used as a support or attachment for artificial teeth. In Anatomy, the lower or broader portion of a bone or organ. Bases for Artificial Teeth. In the construction of a base for artificial teeth, a transfer or model of plaster of Paris is first obtained. Then a metallic model and coun- ter-model, if the base is to be of metal, is procured, and between these a plate of suit- able size and thickness is swaged. In this way it is made to fit accurately the parts upon which it is to rest. If the base is to be constructed from the ivory of the ele- phant or hippopotamus's tusk, the plaster model alone is sufficient. The ivory is cut to the proper size and then carved until it fits the model. But ivory is now seldom used for this purpose. If the base is to be of vulcanized India-rubber the plaster mo- del is sufficient, no metallic dies being ne- cessary. See Metallic Base, Osseous Base, Mineral Base, and Vulcanite Base. BASIA / TOR. Orbicularis oris muscle. BASIC. Belonging to, or of the nature of a base. BASIHY'AL. From basis, base, and hyoides, hyoid. A term in Comparative Anatomy applied to two small subeubieal bones on each side, forming the body of the inverted hyoid arch. BASIL. See Ocimum. BAS'ILAD. Same as Basilar, used ad- verbially. BAS / ILAR. Basila / ris. A name given to several parts of the body which serve as bases to others ; towards the base of the skull. Basilar Artery. An artery of the brain, formed by the union of two vertebral arte- ries within the cranium. Basilar Fossa. A fossa in the upper surface of the basilar process of the occipi- tal bone. Basilar Process. The inferior angle of the occipital bone. Basilar Surface. Inferior surface of the basilary process. Basilar Vertebra. The last lumbar vertebra. BASILIC. Basilicus ; from B*a-. ij, aquas cong. lxvj. Bath, Artificial Sea Water. A bath of one part of common salt in thirty parts of water. Bath, Alkaline. Half a pound of pearl- ash or carbonate of soda, to sixty-six gallons of water. Bath, Animal. Balneum animale. Bath, Antipso / ric. Sulphuret of potas- sium 3jiv, dissolved in water, cong. lx. Bath, Antisyphilit / ic. Two drachms to an ounce of corrosive sublimate dissolved in sixty gallons of water. Bath, Blood. Baths of human blood were formerly used against leprosy. Bath, Cold. A bath the temperature of which is from 30° to 60° Fahr. • Bath, Cool. A bath at 60° to 75° Fahr. Bath, Dry. A bath used by the ancients, composed of ashes, salt, sand, &c. Bath, Chemical. An apparatus for reg- ulating the heat in various chemical pro- cesses, by interposing sand or other sub- stances between the fire and the vessel to be heated. See Bath, Sand. Bath, Electric. An electric bath con- sists in placing a person upon an insulated stool, connected by a metallic wire wiih the principal conductor of an electric machine in action. Bath, Foot. Pedilu'vium. A bath for the feet. Bath, Half. Semicu'pium. A bath adapted for only half of the body, as for the hips or extremities. Bath, Hand. Manulu'vium. A bath for the hands. Bath, Head. Capitilu'vium. A bath for the head. Bath, Hot. Balneum caVidum. A bath having a temperature of 98° to 112° Fahr. Bath, Medicated. Balneum medica'- turn. A bath consisting of decoctions or infusions of certain vegetable substances or any medicinal ingredients. Bath, Nitro-Muriatic Acid. A bath consisting of dilute aqua regia, employed by Dr. Scott, of India, in hepatic diseases. Bath, Sand. Balneum Are'nce. A ves- sel filled with sand and placed over a fire ; into this another is placed containing the substance to be evaporated. Bath, Shower. Implu'vium. A bath where the water falls like a shower on the body. Bath, Steam. The introduction of steam BAY 93 BEC into a closed vessel or room, in place of water, 100° to 130° Fahr. Bath, Succession. Transition bath. The rapid succession of baths of different temperatures. Bath, Sui/phurous. Water in which sulphuret of potassium is dissolved in the proportion of four ounces of the latter to thirty gallons of the former. Bath, Tan. An astringent bath made by adding a decoction of two or three hand- fuls of tan to the water of a bath. Bath, Tem / perate. A bath at from 75° to 85° Fahr. Bath, Tepid. A bath at 85° to 92° Fahr. Bath, Vapor. A bath at 122° to 144- 45° Fahr. Bath, Warm. A bath at 92° or 98° Fahr. BATHMIS. Baihmus. From &a tva >, to enter. The seat or base; the cavity of a bone which receives the head or protuberance of another. BATHRON. From fr&pi, bench. An instrument invented by Hippocrates for re- ducing fractures and luxations. BATRACHUS. Ranula. BATTARIS'MUS. Battalis'mus. From @arr*(>i£ci> 7 to stammer. Stammering, with hesitation. BATTERY, ELECTRICAL. A term applied to a combination of Leyden jars for collecting electricity, all of which may be charged and discharged at the same time. Battery, Galvanic. A name applied to pairs of zinc and copper plates. See Galvanic Battery. BATTLEY'S SOLUTION. Liquor opii sedativus. A narcotic preparation of which acetate of morphia is supposed to be the active ingredient. BAUHIN, VALVE OF. A name given to a transverse valve situated where the ileum opens into the ccecum. BAULAC. An Arabic name for nitre or salt in general. From this word comes borax. BAY BERRIES. The berries of the Laurus nobilis. Bay-Rum. Spirit flavored with bay- leaves. Bay-Salt. Chloride of sodium. Salt obtained by evaporating sea-water by the sun in warm countries. Bay Sore. A disease endemic at Hon- duras, and supposed by Dr. Moseley to be a true cancer, commencing with scirrhus. Bay, Sweet. See Laurus Nobilis. BAYNTON'S ADHESIVE PLASTER. An adhesive plaster composed of six drachms of resin and one pound of litharge. Baynton's Bandage. Strips of adhesive plaster regularly encircling the leg, and overlapping each other. They are used in the treatment of ulcers. BDELLA. A leech. BDELLOM'ETER. An artificial leech, consisting of a cupping-glass, to which is attached a scarificator and an exhausting syringe. BDEI/LIUM, A gum-resin resembling impure myrrh. BDELYG'MIA. Nausea, or dislike for food; also a disgusting fetor. Bdolus. BEAD PROOF. An epithet denoting the strength of spirituous liquors as shown by the continuance of bead-like bubbles on the surface. BEAK. The bill of a bird ; a point ; the jaws of forceps employed for the extrac- tion of teeth are sometimes so called. In Chemistry, the tubular portion of a retort. BEAN. A term applied to several kinds of Leguminous seeds and the plants pro- ducing them. They belong to several gen- era, particularly the Vicia, Phaseolus, and Dolichos. Bean, French. The kidney bean. Bean, Malacca. The fruit of the Semi- carpus anacardium, a tree growing in Mal- abar and other parts of India. Bean of St. Ignatius. Faba Sancti Igna'tii. The fruit of the Strychnos Igna- Hi, a tree, native of the Philippine Islands. BEAR'S BERRY. See Arbutus Uva Ursi. Brar's Breech. See Acanthus Mollis. Bear's Foot. Stinking hellebore. See Helleborus Fcetidus. BEAUME DE VIE. Balm of life. A compound decoction of aloes. BEBEER'IA. Bebeerine. An alkaloid obtained from the Bebeeru. or greenheart tree of British Guiana. Its sulphate has been used as an antiperiodic. BEC. A French word signifying beak. Bec-de-corrin. A surgical instrument; BEG 94 BEN" forceps for the extraction of teeth. See Ex- traction of Teeth. Bec-de-cuiller. A surgical instrument for the extraction of balls from gunshot wounds. Bec de-lievre. Hare-lip. Bec d'Ane. A name given by Fauch- ard to a trenchant chisel-pointed instrument employed for the removal of salivary cal- culus. Bec de Perroquet. An instrument so called, by Fauchard, from its resemblance to the point of the bill of a parrot, for re- moving salivary calculus from the teeth. BE / CH1CS. Be'chica, be&'chica, from /8«£, a cough. Medicines for relieving a cough. BDELLOM'ETER. From/3, I draw out. An instrument used by surgeons for the extraction of darts and thorns. BEN NUT. The fruit of the Moringa aptera. BEN 95 BET Ben Oil. The expressed oil of the Ben nut. BENEDICTA LAXATPVA. Rhubarb, and the lenitive electuary. Confectio Sennae. BENEDIC'TUS. From benedico, blessed. A term formerly applied to certain herbs and compositions, on account of their sup- posed good qualities. BENIG'NUS. Benign ; not malignant ; applied to mild forms of disease. BEN'JAMIN, or BENZOIN. Belzoim. A dry, resinous, brittle substance, obtained from the styrax benzoin. See Styrax Ben- zoin. Benjamin Flowers. Benzoic acid. BENNE. Sesamum orientale. BEN'ZAMIDE. A substance obtained by saturating chloride of benzole with dry ammonia, and washing to remove the muri- ate of ammonia. BEN'ZIDAM. An oil of a light yellow color, obtained by passing sulphuretted hy- drogen through nitro-benzide. It is identical with Anilin and Kyanole. BEN / ZILE. A substance obtained by passing a stream of chlorine gas through fused benzoin. BENZIL/IC ACID. An acid obtained from benzile. BEN'ZIN. See Benzole. BENZINE. Mineral turpentine. A substance obtained from coal oil, and used as a substitute for turpentine. BENZOIC ACID. Acidum benzoicum. Flowers of Benjamin. An acid obtained from gum benzoin, by sublimation. It exists, however, in nearly all the balsams. Its salts are benzoates. Its local action is acrid, and when swallowed causes heat and acridity of mouth, fauces, and stomach. It is stim- ulant and errhine ; as an expectorant doubt- ful. Dose, gr. x to gss. BENZOIN. A balsam or resin, obtained from incisions made in the styrax benzoin. BEN / ZOLE. Benzin; Benzene; Phene ; Hy'druretof Phen'yle. A constituentofcoal gas tar, obtained by distilling coal naphtha. It is a colorless, oily liquid, with an agree- able odor. In the form of an ointment, composed of one part of benzole and four parts of lard, it has been used with advan- tage in itch, and parasites of the skin ; and in neuralgia and rheumatism in its pure state. BENZONE. A colorless oily fluid, pro- duced by distilling, in the dry way, ben- zoate of lime. BENZONITRILE. A clear, colorless liquid, formed during the fusion of benzoate of ammonia. BENZULE. Benzoyle. From benzoin, and v\», principle. A compound of carbon, hydrogen, and oxygen, supposed to be the base of benzoic acid. BER'BERIN. A yellow crystalline sub- stance obtained from the root of the bar- berry. BERBERS. A genus of plants of the order Berberidacece. Berberis Vulgaris. Barberry. The berries of this shrub are refrigerant, astrin- gent, and antiscorbutic. BER'GAMOT. A species of citron or small orange, of an agreeable taste and pleasant odor. An oil is obtained from its bark, which is much used as a perfume. BERIBERI. Beribe'ria. A disease characterized by debility and tremor, pe- culiar to India. BERLIN BLUE. Prussian blue. BER'RY. See Bacca. BERTIN, SPONGY BONES OF. Two small, triangular, turbinated bones, often found beneath the small opening of the spheniodal sinus. BER / YL. Aqua-marine. A valuable mineral of a greenish-yellow color. BE / TA. A genus of plants of the order Chenopodiacece. The beet. Beta Rubra. The red beet. Beta Vulgaris. The common beet root. BETEL. Piper betel. An Indian plant, which, when chewed, blackens the teeth. Its properties are said to be tonic and as- tringent. BETON'ICA. A genus of plants of the order Labiatce. Betonica Officinalis. Wood betony. A perennial European herb, having a warm and somewhat astringent taste, highly es- teemed by the ancients, and employed in numerous diseases. The leaves are said to possess aperient, and the root emetic prop- erties. BETONY. Betonica officinalis. Betony, Water. See Scrofularia Aqua- tica. BIB 96 BIC BET'ULA. A genus of plants of the order Betulinece. Betula Al'ba. White birch. The leaves and bark are slightly astringent and tonic. Betula Ai/xcs. Thealntusof the Phar- macopoeias. The common European alder. BEX. From *n } to generate. Generating mucus ; muciparous. BLENNOPHTHALMIA. Purulent oph- thalmia. BLENNOP'TYSIS. From Am*, and fl-Tt/a, I spit. Expectoration of mucus. Catarrh. BLENNORRHA'GIA. Gonorrhoea. BLENNORRHEA. From /3xm*, mu- cus, and pt», I flow. Discharge of mucus from any of the mucous surfaces, but par- ticularly from the urethra. BLENNO'SES. Catarrhal affections of the mucous tissues. BLENNY'MEN. A mucous membrane. BLENNYMENFTIS. Inflammation of a mucous membrane. BLEXNU'RIA. Cystorrhcea. BLEPHARFTIS. From &x*or, the eyelid, and w, to feed, because grass is the chief food of animals most useful to man. The science of plants ; a knowledge of everything relating to the natural history of the vegetable kingdom, embracing the terminology, classification, synonyms, sen- BEA 106 BEA sible qualities, anatomy, physiology, &c, of plants. BOTH'RIOX. Bsfyoy. A little pit. A small cavity ; the socket of a tooth ; a small deep ulcer of the cornea. BOTHRIOCEPH'ALUS LATUS. From /SoSywov, a pit, Jt»*«A», the head. Tcenia lata. The broad tape-worm. BOTS. The larva? of the horse gadfly, found in the stomach and intestines of horses. BOTULIN'IC ACID. A poisonous, fatty acid, produced by decomposing sau- sages. BOUGIES Literally, a wax candle. A slender, flexible instrument, designed to be introduced into the bladder through the urethra. Bougie', Armed, or Bougie 7 , Caus / tic. A bougie with a piece of lunar caustic fixed in its extremity. BOULIM'IA. From fiout, an ox, and M/uoe, hunger. A canine or voracious ap- petite : insatiable hunger. BOURDONNEMENT. A name given by the French to certain sounds heard by persons while under the influence of disease, termed, 1. Syrigmus, or singing in the ears; 2. Susurrus, or whizzing sounds ; 3. Bombus, or beating sounds. BOW-DRILL. A drill turned by a stock with a bow and string or cord. BOX PLATE. A metallic plate with an air-tight chamber, used as an obturator, or in connection with artificial teeth, for the replacement of the loss of natural structure. See Raised Base. Box-Tree. See Buxus Sempervirens. Box-Wood. See Cornus Florida. BRACHE'RIUM. From brachiale, a bracelet. A truss or bandage for hernia. BRACHLE'US. Same as Brachial. BRACHIAL. Brachials. That which belongs to the arm. Brachial Aponeurosis. An aponeuro- sis enveloping the muscles of the arm. Brachial Artery. Arieria brachialis. A continuation of the axillary artery, run- ning down on the side of the arm to the bend of the elbow, where it divides into the radial and cubital arteries. Brachial Muscle, Anterior. A mus- cle situated on the anterior and inferior part ofthe arm. Brachial Plexus. Plexus brachialis. A nervous plexus, seated deeply in the hol- low of the axilla, extending to the inferior and lateral part of the neck. Brachial Veins. Two veins, which fre- quently anastomose with each other, and accompany the artery. BRACHIAL'GIA. Brachium, the arm, and axyoc, pain. Pain of the arm. BRACHIALIS EXTERNUS. See Tri- ceps Extensor Cubiti. Brachialis Internus. A muscle ofthe forearm. BRACHFATE. Brachia'tus; from @pa%iu!v, an arm ; armed ; brachiated. A term in Botany, applied to the branches of a plant or tree, which go off at nearly right angles from the trunk or stem. BRACHILUVIUM. An arm bath. BRACHIO-CUBITAL. Belonging to the brachium and cubitus or ulna. Brachio-Radial. Brachio radialis. Be- longing to the brachium and radius. BRACBIOCYLLO'SIS. From #«;*>>, an arm, and -xuwanris, curvature. Paralysis or loss of power from curvature ofthe arm. BRACHION'CUS. From £/«*«»», the arm, and oynoc, a swelling. A tumor of the arm. BRACHIO'PODA. From fyaz"»> an arm, and 7rcu;, a foot. Arm-footed animals ; an order of headless bivalve Molluscous animals. BRA / CHIUM. B^/ov, the arm. The arm from the shoulder to the wrist. Brachium Arterius and Brachifm Posterius. Two rounded processes which pass from the tubercula quadrigemina into the optic thalamus. BRACHU'NA. Nymphomania. Satyr- iasis. BRACHYPNCE'A. From foa^f, short, and irvtu, to breathe. Difficulty of breath- ing ; shortness of breath. BRACHYAU'CHEX. Short-necked. BRACHYGNA'THUS. From #**«/?, short, and >va$o f , a jaw. A monster with too short an under jaw. BRACHYPOT'IC. Persons who drink rarely. BRACT. Bractea. A term in Botany, applied to a leaflet situated below the point of the insertion of flowers, and which it BEA 107 BEE assists in covering previously to its develop- ment. BRADYiESTHE'SIA. From ^paJvs, difficult, and aiv 7 an arm, be- cause branches of a tree, &c, go off like an arm. Generally applied to the principal division of an artery or nerve. It is usually employed as synonymous with ramus. BRANCH'S APPARATUS. An in- strument for producing local anaesthesia, by means of a mixture composed of two parts of ice and one of salt, applied to the gum and tooth to be extracted, invented by Dr. Branch of Chicago. It consists of a hollow tube, about an inch and a fourth in diameter, with about five-eighths of an inch cut out at one end on either side, that it may readily be placed over a tooth. To this is attached a sack of finely prepared mem- brane large enough to hold a tablespoonful of the freezing mixture. The hollow of the tube is occupied by a steel wire spiral spring. Just before using it, a sufficient quantity of the freezing mixture is put in the tube ; the end of the latter is placed over the tooth, when the ice and salt are forced up gently around it by pressing on the spring at the other extremity of the instru- ment. Two tubes are employed; one straight, for teeth in the front part of the mouth, the other bent near one end, for the more convenient application of the mixture to a molar tooth. BRANCHiE. From &pay%o<, hoarseness. Swelling of the tonsils and thyroid gland. BRAN'CHI^E. From /?/>*>*<«, the gills of a fish. Gills. The respiratory organs of those animals which extract oxygen from air contained in water. BRANCHIO'PODA. From ^ W , gills, and srowc, a foot. An order of crus- taceans in which the gills perform the func- tions of feet. BRANCHUS. From Bpayyoc, hoarse- ness ; sore throat ; overstraining of the voice. BRANDY. Spiritus Gallicus. A pow- erful and diffusible stimulant, obtained by distillation from wine. BRANKS. Mumps. BRASQUE. A French term to denote the lining of a crucible or a furnace with charcoal. BRASDOR'S OPERATION FOR AN- EURISM. Tying theaneurismal vessel on the distal side of the tumor. BRASMA. Brasmos. From Qp&vve*, to boil. Fermentation. BRASS. A yellow metal ; an alloy of copper and zinc. BRAS / SICA. Cabbage, or colewort. Also, the name of a genus of cruciferous plants. Brassica Flor'ida. The cauliflower. Brassica Lactur / ria. The Savoy plant. Brassica Na / pus. Wild navew, or rape. Brassica Ra / pa. The turnip. Brassica Sativa. American garden cabbage. Brassica Ru / bra. Red cabbage, of which there are several varieties. It is used as a test for acids and alkalies. For this purpose it is superior to litmus; alkalies turn it green, and acids turn it red. BRAYERA ANTHELMINTICA. An Abyssinian tree of the family Bosacece. An infusion of the flowers is esteemed by the natives as of great value as a vermifuge, especially against tape-worm. Brazil Wood. The wood of the Ccesal- pinia Brasiliensis. It is used in dyeing. BREAD FRUIT. The fruit of the Ar- tocaiyus incisa, a tree of the isles of the Pacific Ocean. BREAK-BONE FEVER. Common name for Dengui. BEO 108 BEO BREAST. The mamma 5 also the fore- part of the thorax. Breast Glass. A glass resembling a small cup, adapted to the nipple, and used for the reception of the milk when secreted in too large a quantity. Breast Pump. A small bell-shaped glass, furnished with an air pump or syringe, and used for the purpose of drawing the milk from tumid breasts. BREGMA. From £/>*£*, to moisten. The sinciput or upper part of the head ; the junction of the parietal bones. BRE'VIA VASA. Short Vessels. Ap- plied to several branches of the splenic arteries and veins. BRE'VIS CU'BITI. The anconeus muscle. BREVIS'SIMUS OCULI. The obli- quus inferior. BREZILIN. The coloring matter of Brazil wood. BRICK, OIL OF. Oil of Spike. BRICKLAYER'S ITCH. A species of tetter on the hands of bricklayers, produced by the contact of lime. BRFER, WILD. Rosa canina. BRIGHT'S DISEASE. A granular de- generation of the kidney, generally attended by the presence of albumen in the urine, and a train of other morbid phenomena. The important symptom is albuminous urine. Nephritis Albuniino'sa, or Albu- minen'sis. BRTM OF THE PELVIS. The ilio- pectineal line leading from the tuberosities of the ossa pubis, outward and backward, to the prominent point of the sacrum, di- viding the cavity of the pelvis from the cavity of the abdomen. BRIMSTONE. Sulphur. The sublimed sulphur of the Pharmacopoeia is termed flowers of brimstone or of sulphur. BRISEPIERRE ARTICULE. French. An instrument for breaking stones in the bladder. BRITISH GUM. Starch reduced to a gum-like state by being heated to 700° Fah. BRITISH OIL. Common petroleum; also a rubefacient liniment, for the prepara- tion of which there are various formula?. BROACH, WATCHMAKER'S. A five- sided steel instrument, three or four inches long, with a flattened point, very gradually increasing in size towards the extremity in- tended for the handle. It is sometimes used by dentists for enlarging the canal in the root, and the opening into a decayed cavity in the crown of a tooth. BROCHUS. According to some, a per- son whose teeth project, or one who has a prominent upper lip. BRO'DIUM. Jus'culum. The liquor in which anything is boiled ; broth. BRO'MA. Btfyoeo-KU), to eat. Food; any- thing masticated. BRO'MATE. Bromas. A combination of bromic acid with a base. BROMATOG'RAPHY. Bromatograph' - ia. From &?<»/**, food, and ypa^u, a de- scription. A description of aliments. BROMATOL'OGY. Bromatolog'ia, siti- oVogy. From &p*>i"a, food, and ag^o?, a dis- course. A treatise on food. BROME'LIA. A genus of plants of the order Bromeliacece. Bromelia Ana'nas. The pine-apple tree. Bromelia Pen'guin. Broad-leaved wild ananas; the plant that produces the pen- guin fruit. BRO / MIC ACID. A combination of bromine and oxygen, obtained by decom- posing bromate of baryta with sulphuric acid. BRO / MIDE. A compound formed by the union of bromine with a base. Bromide of Potassium. Potassii Bro- midum; which see. BRO'MOFORM. A combination of bro- mine and formic acid, somewhat analogous in its effects to chloroform. BROMINE. From &*/*«, a strong odor. An undecomposed substance, of a very volatile nature, offensive smell, and suffocating odor, resembling chlorine and iodine. With oxygen it forms the bromic acid. BROMIUM. See Bromine. BRONCHIA. Bron'chice; bronchi; from epoy%os, the throat. The two tubes which arise from the bifurcations of the trachea, with their ramifications. BRONCHIAL. Bronchia'lis. Belong- ing to the bronchia. Bronchial Arteries. The arteries given off by the thoracic aorta which go BKU 109 BKU to the lungs and accompany the bronchia in their ramifications. Bronchial Cells. The air-cells at the termination of the bronchia. Bronchial Glands. Numerous black- ish glands, seated in the course of the bron- chia and trachea. Bronchial Nerves. The nerves of the bronchia, furnished by the two pulmonary plexuses. .Bronchial Tubes. The minute ramifi- cations of the bronchia, terminating in the bronchial or air-cells of the lungs. Bronchial Veins. The veins which arise from the left division of the bronchial arteries. BRONCHIECTASIS. Dilatation of one or more of the bronchial tubes. BRONCHOSTENOSIS. Contraction or narrowing of the bronchi. BRONCHITIS. Inflammation of the lining membrane of the bronchial tubes. BRONCHLEMMFTIS. Croup. BRONCHOCE'LE. Erom fayx*s, the windpipe, and «»*», a tumor. The Derby- shire neck ; wen ; goitre. A tumor on the forepart of the neck, resulting from an en- largement of the thyroid gland. BRONCHOPHONY. Bronchial reso- nance of the voice. The sound of the voice, heard by means of the stethoscope, in the bronchia. BRONCHO-PNEUMONIA. From/3/^- X»s } bronchus, and pneumonia. Inflamma- tion of the bronchia and lungs. BRONCHORRHCE'A. From #0**0*, bronchus, and />««, I flow. Increased se- cretion of mucus from the air-passages. BRONCHOT'OMY. Bronclwtom'ia ; from fipoyxos, the windpipe, and , to cut. Tracheotomy; an operation which consists in making an opening into the larynx or trachea for the removal of foreign bodies, or the admission of air to the lungs. BRONCHUS. The trachea, or wind- pipe ; also its first divisions. BRONZE. An alloy of copper and tin. BROOKLIME. Veronica beccabunga. BROWN SPAR. Pearl spar. Sidero- calcite. A white, red, brown or black spar, harder than the calcareous. BRU'CEA. A genus of plants of the order Terebinthaceo3. Brucea Ferrugin / ea. An Abyssinian shrub, the bark of which is employed by the natives in the cure of dysentery and diarrhoea. The second bark is known by the name of false angustura. BRU / CIA. Brucine. A vegetable alkali, extracted from the bark of the false an- gustura, or brucea antidysenterica. Dose gr- j. BRUISSEMENT. A French term for the purring tremor; same as Bruit. BRUIT. Sound. A term from the French, applied, in Pathology, to the sounds heard on auscultation and percussion. Bruit de Craquement. Bruit de Cuir Neuf. A sound resembling the creaking of new leather, produced by the friction of the two surfaces of the pericardium when roughened by inflammation. Bruit de Diable. A sound resembling that of the humming-top, heard in the veins and arteries of the neck, and denoting im- poverishment of the blood. Bruit de Frottement. Friction sound. Bruit de Mouche. A sound like the buzzing of a fly, heard in chlorosis. Bruit Musculaire. The first sound of the heart. Bruit de Parchemin. Parchment sound, said to be heard when the valves of the heart are thickened and stiff. Bruit de Pot Fele. Sound of cracked vessels, heard when percussion is made over a cavern in the lungs filled with air, and having a narrow outline. Bruit de Rape. Rasping sound ; heard in various valvular diseases of the heart. Bruit de Scie. Sawing sound ; re- sembles the last. Bruit de Soufflet. Bellows sound. Bruit Tympanique. Tympanic sound; the clear sound obtained by percussing over the stomach or intestines when these organs are inflated with air. BRUN'NER'S GLANDS. Brunneri glandulw. The muciparous follicles sit- uated between the villous and cellular coats of the small intestines. BRUNO'NIAN THEORY. A system of medicine founded by John Brown, in which all changes of the excitable powers are attributed to previous excitement, &c. BRUNSWICK GREEN. Friesland Green. An ammonio-chloride of copper, used as a pigment. BUB 110 BUC BRUSH. An instrument for cleansing the teeth, for finishing metallic appliances for the mouth, and for the application of a solution of borax to pieces of metal that are to be united by soldering. See Tooth Brush, Polishing Brush, aud Pencillus. Brushes are also used for other purposes, as rubbing the surface of the body, painting, &c. BRU'TA. Juniperus sabina. The Sa- vin plant. BRU'TIA. A resinous pitch, obtained from Brutia, in Italy, and used to make the Olium Picinum. BRYG'MUS. Bpuyptee, Stridor dentium. Grinding of the teeth. BRYO'XIA. From £/>va>, to abound, from its abundance. Bryony; also a genus of plants of the order Cucurbitaceoz. Bryonia Ai/ba. White bryony. The root is purgative, hydragogue, emmena- gogue, diuretic, and, when fresh, emetic. Bryonia Mechoacan'na Nigricans. Convolvulus jalapa. The jalap plant. BUBASTECOK/DIUM. Artemisia vul- garis. Mugwort. BU'BO. From 05«/S«r, the groin. A tumor of the glands of the groin, and also of the axilla, resulting from local absorption of irritating matter, such as venereal poison, or it may be symptomatic of constitutional disease. BUBON. In Botany, a genus of plants of the order Umbelliferce. Bobon Gal'banum. The name of the plant from which the officinal galbanum, at first a gummy resinous juice, but which soon becomes concrete, is obtained. Bubon Macedon'icum. The name of the plant which affords the Semen Petroselini Macedonici of the shops. Macedonian pars- ley. BUBONAL/GIA. From (8o»/8«r, the groin, and a\ycc, pain. Pain in the groin. BUBO'NIUM. A plant formerly used in diseases of the groin ; a species of starwort. BUBONOREX'IS. From the groin, and p£ ? to become hard ; the box-tree. Also, a genus of plants of the order Euphorbiacece. Buxus Semper'virexs. The leaves of this plant have been used, in decoction, in dropsy and asthma. BYNE. Bu>*. Malt. BYRETH'RUM. A sort of cap filled with cephalic substances. BYR / SA. From £vpa, a hide. A leather skin to spread plasters upon. BYRSODEPSICUM PRINCIPUM. Tannin. BYSAU'CHEN. From &v», to stop up, and dwfcw, the neck. Morbid stiffness of the neck. BYSSA / CEOUS. Divided into very fine filaments, like flax, as the roots of some agarics. BYS'SOLITE. From (&»#*, flax, and \iSos } a stone. A fibrous mineral found on the Alps. BYS'SUM, BYS'SUS. In Anatomy, the pudendum muliebre. In Botany, a genus of lichens. Also, the hairy append- ages by which certain mollusca attach themselves to rocks. In Italy, it is woven into clothes, which are worn, it is supposed, with benefit by rheumatic patients. CAC 113 CAC c. C. Chemical symbol for carbon; also, an abbreviation for Congius, a gallon. CAA-AP'IA. See DorsteniaBrasiliensis. CAA-ATAY'A. A Brazilian plant, pos- sessing bitter and cathartic properties. CAAPEBA. Pareira brava. CAB. Alchemical term for gold. CABALS Cabala. Kabala; from the He- brew Kibel, to receive; because it was said to have been received from the Deity by Moses, and transmitted, in uninterrupted tradition, through Joshua, the seventy elders, &c, to the Rabbinical doctors. A term applied to the whole system of occult philosophy cul- tivated by the Rabbins. These doctrines were adopted by the Rosicrucians, and by Paracelsus, who divided it into Judaic or theological, and Hermetic or medical. The latter, according to them, was the art of knowing the most secret properties of bodies by an immediate communication with spir- its ; the knowledge thus acquired being ob- tained by inspiration, and consequently in- fallible. CAB'ALLINE. A coarse kind of aloes. CABARET. Asarum. CACiE'MIA. Cachcemia; from x.a*os, bad, and atpa, blood. A bad condition of the blood. CAC^STHE'SIS. From **ko?, and ai«/3oT»c, puberty. Morbid puberty. Dis- ease occurring at the period of puberty. CACHALOT. The spermaceti whale. CACHECTIC. Pertaining to cachexia. CACHELCO'MA. K**°?, bad, and ^* 0? , an ulcer. A malignant ulcer. CACHEXIA. From kokoc, bad, and *f /?, a habit. A depraved habit or condition of the body, as scorbutic, cancerous, &c. Cachexia Africa / na. A sort of Pica to which the negroes are subject. Its prom- inent symptom is a desire for eating dirt. Cachexia Splenica. The cachexy ac- companying enlarged spleen. Cachexia Vene'rea. Syphilis. CACHEXa^E. An important class of diseases in the Nosology of Cullen and Sauvages, depending upon a depressed ha- bit of body. CACHINNA'TION. From cachinno, I laugh. Excessive laughter, a symptom of hysterical and other affections. CACHOLONGr. A species of quartz. CACHOU. Catechu. CACHRYS. A genus of plants of the order Umbelliferce. Cachrys Libano'tis. A plant possess- ing aromatic and astringent properties. CACOCHO'LIA. From kgkoc, bad, and £oa», bile. A vitiated or depraved condition of the bile. CACOCOI/PIA. From x*k 9? , bad, and *oxfl-oc, the womb or vulva. A putrid condi- tion of the vulva and vaginal entrance. CACOCHROI. From *<**oc, bad, and Xpo*, color. Diseases in which the com- plexion is changed. CACOCHY1/IA. From ****?, bad, and £vxof, chyle. Depraved chylification. CACOCHYM'IA. From ***o f , bad, and X^^h juice, humor. A morbid or depraved condition of the humors. CACOCNE'MOS. From **ko?, bad, and KVHjuH, the leg. A defect in the legs. CACOCORE'MA. From ***«, bad, and icoptee, I purge or cleanse. A medicine which purges off morbid or vitiated humors. CACO'DIA. From k*koc, bad, and *£*, to smell. Anosmia, or defect in the sense of smelling. CACODYL. From ***o?, bad, and &<;, bad, and 7raSo;, affection. A disordered state of mind. CACOPHO'NIA. Defective articula- tion. CACOPRA'GIA. From xoito;, bad, and Trpar-ra^ I perform. A morbid condition of the chylopoietic organs. CACORRACHFTIS. From k*xo?, and pax 1 *) the spine. Disease of the vertebral column. CACORRHYTH'MUS. From ***« ans?», nutriment. Bad nutrition. CACOX / ENE. From x***?, bad, and |sfof, foreign. A mineral occurring in yel- lowish, radiating crystals, containing phos- phoric and fluoric acids. Peroxide of iron and silica. CAC'TUS. The artichoke ; also a genus of plants of the order Cactacece, prickly pear. Cactus Coccineli/ifer. Napal ; the leaves of which are inhabited by the cochi- neal insect. Cactus Opun'tia. Opuntia. The In- dian fig, or prickly pear. CADA / VER. From cadere, to fall. A body deprived of life ; a dead body. CADAVEROUS. Having the appear- ance of a dead body. CADET', FUMING LIQUOR OF. Chloride of arsenic. CADMFA. A name applied to several metallic compounds, as Calamine, Cobalt, Tutly, &c. C AD MFI SULPHAS. Sulphate of cad- mium ; a salt used as a collyrium in dis- eases of the eye. CADMFUM. A metal found in carbon- ate of zinc, of a compact texture, and a bluish-gray color, approaching tin. It has recently been combined with mercury for the formation of an amalgam for filling teeth. The result of the experiments, how- ever, which have been made with the com- pound, has not been as satisfactory as was at first anticipated. CADU'CA. A name sometimes given to the deciduous membrane of the uterus. CADUCITY. The French use the term caducite' to express that portion of life which immediately precedes decrepitude. CADU'CIBRAN'CHIATE. From ca- ducits, fading, and branchice, gills. A term, in Zoology, applied to those Bratrachians, which, before they arrive at maturity, un- dergo a metamorphosis, and lose their branchial apparatus, as the frog, toad, sala- mander, and newt. CADUCOUS. From cadere, to fall. Deciduous. A term in Botany, applied to parts or organs of a plant which are not permanent, but fall early. In Anatomy, to the tunica decidua uteri, and the temporary or milk teeth. In Pathology, to epilepsy, because its attacks are attended by the sudden falling of the patient ; and in Zo- ology, to insects, as the caterpillar, the legs ofwhichdonot appear in all the changes through which the animal passes. CiE'CAL. Belonging to the ciecum. C^E'CITAS. From cceeus, blind. Blind- ness. See Caligo and Amaurosis. CiE'CUM. Intestinum coscum. From caucus, blind. The caecum or blind gut is so called from its being perforated only at one end. C.E'CUS. Blind. A term applied, in Anatomy, to cavities or holes which have but one opening. C^ecdm Fora'men. A small cavity in the frontal bone at the inferior extremitv of the external coronal crest. C^SALPI'NIA. A genus of plants of the order Fabaceo?, all of which afford dye- wood, known in commerce by the name of Brazil woods. The principal species are CAL 115 CAL the Ccesalpinia echinata, which is the best ; the Ccesalpinia crista, and the Ccesalpinia Sappan, a Siamese tree. CESA'RIAN OPERATION. Caesa- rian section. From ccedere, to cut. In Obstetric Surgery, an operation which con- sists in making an incision into the uterus through the parietes of the abdomen, for the removal of the foetus. CAFFEIC ACID. An acid obtained from coffee in the form of a white powder. When heated it yields the odor of roasted coffee. CAFFEIN. A white, silky, crystalline substance obtained from coffee. Its salts have been used as nervines. CAIN / CA. Chainca. Caincce radix. The root of a species of Chiococca, cele- brated as an antidote to the bite of serpents. It is tonic, emetic, and diuretic. CAJEPUT OIL. Oleum Cajuputi. The volatile oil of the leaves of Melaleuca caju- puti. It is stimulant and aromatic, and is considered very efficacious in some forms of rheumatism. A drop placed in a decayed tooth has been used as a remedy for odon- talgia. Dose, gtt. ij to vj. CALA'BA. The Indian mastich-tree. CALAME'DEN. A term applied to various fractures. CAI/AMINE. Calamina. A native carbonate of zinc. Prepared Calamine, in fine powder, is dusted or sprinkled on parts to prevent excoriation. CALAMFNA PRiEPARA'TA. Cal- cined calamine reduced to an impalpable powder. CALAMIN'THA. Calamint. See Me- lissa Calamintha. CALAMINTA. Dry styrax. CAI/AMUS. The Pharmacopceial name of the Acorus calamus. The acorus is a genus of seed-plants of the order Aracece. Calamus Aromat/icus. Acorus calamus. Sweet flag. The root is stimulant, tonic, and aromatic. Calamus Dra / co. The plant which yields dragon's blood. Calamus Sacchari'nus. Calamus In- dicus. The common sugar-cane. Calamus Scripto / rius. A small cavity or furrow at the bottom of the fourth ven- tricle of the brain, so called from its resem- blance to a pen. CALC SPAR. Crystallized carbonate of lime. Calcareous spar. CALCA'NEUM. Calx, the heel. The largest bone of the tarsus, the heel bone, or os calcis. CALCAR, gen. Calcaris, Calcaneum. (Also, a spur.) Ergot. CALCAREOUS. Calx, calcis, lime. Belonging to lime ; containing lime. Calcareous Earth. Lime. Calcareous Spar. Crystallized carbo- nate of lime. CALCIFICATION. See Petrifaction. CALCIGENOUS. Calx, lime, and ymao,, to generate. Applied to metals which with oxygen form a calx, or earthy-looking sub- stance. CALCIG'EROUS CELLS. The cells of the bony or dentinal part of a tooth are so called by Professor Owen. CAL'CII CHLO'RIDUM. Chloride of calcium. CALCINATION. From calx, lime. Oxidation. The act of submitting to a strong heat any infusible mineral substance for the purpose of depriving it either of its water, or any other volatile substance en- tering into its composition, and reducing it to ashes or cinders. CAL'CINATUM MA'JUS POTE'RII. Mercury dissolved in nitric acid and pre- cipitated with salt and water. CAL'CINE. Calx, lime. To burn as lime } to reduce to a powder, or to an oxide, by heat. CALCINED MAGNESIA. The pro- toxide of magnesium. CAL / CIS A / QUA. Calcis liquor. Lime- water. Calcis Mu'rias. Muriate of lime ; old name for the chloride of lime. Calcis Os. The bone of the tarsus which forms the heel. Calcis Oxymurias. Chloride of lime. Calcis Sulphure / tum. Hepar calcis Sulphuret of lime. CAL'CIUM. The metallic base of lime. CALCULIF'RAGUS. From calculus, a stone, and frango, to break: A stone- breaker ; an instrument for breaking a stone in the human body; a lithontriptic instru- ment. CALCULI, ARTHRITIC. Calculi articular. Concretions formed in. the liga- CAL 116 CAL meats, and within the capsules of the joints of persons affected with gout. Calculi, Bil / iary. Biliary concre- tions ; gall-stones. Calculi in the Ears. Hard concre- tions formed in the meatus auditorius ex- tern us. Calculi, Intestinal. Intestinal con- cretions. Bezoars. Calculi, Lachrymal. Concretions formed in the lachrymal ducts. Calculi, Pancreatic. Concretions formed in the pancreas. Calculi of the Pineal Gland. Con- cretions formed in the pineal gland. Calculi of the Prostate Gland. Concretions in the prostate gland, usually composed of phosphate of lime. Calculi, Sal / ivary. Concretions of a calcareous kind formed in the substance of the salivary glands, or in their excretory ducts, or upon the teeth. See Odontolithos, and Salivary Calculus. Calculi, Spermatic. Concretions found occasionally in the vesiculse seminales. Calculi of the Stomach and Intes- tines. Concretions formed in the stomach and intestines. Calculi of the Tonsils. Concretions formed in the tonsils. Calculi, Urina / ry. Concretions of an earthy nature formed in the bladder. CAI/CULUS. Diminutive of calx, a limestone. An earthy concretion formed in the bladder, kidneys, mouth, or some other part of the body. Calculus Denta / lis. Salivary calcu- lus. CALDAR. The old Arabic chemical name for tin. CALDA'RIUM. A caldron. Applied by the old writers to the hot bath. CALEFA'CIENT. Calefaciens ; from calidus, warm, and facto, I make. To excite warmth. Any substance, as mus- tard, pepper, &c, capable of exciting warmth in the part to which it is applied. CALEN / DULA. A genus of plants of the order Compositoz. Calendula Alpina. Arnica Montana. Calendula Arvensis. Wild Marigold. Used in jaundice and cachexia. Dose of the juice from f Jj to f §iv. Calendula Officinalis. The garden marigold, supposed to be antispasmodic, sudorific, deobstruent, and emmenagogue. CALEN'DUL^E MARTIALES. Fer- rum ammoniatum. CALENDULIN. A peculiar principle, supposed by Berzelius to be analogous to bassorin, obtained from the marigold. CALENTU'RA. From calere, to be warm. Applied to a species of delirium to which sailors are subject in the torrid zone, the chief symptom of which is a desire to throw one's self into the sea, thinking, say the old writers, that it is a green field. A kind of phrenitis. CALENTURAS. Sometimes applied to Cinchona. Also a tree of the Philippine Islands, the wood of which is bitter and feb- rifuge. CALE'SIUM. A Malabar tree, the bark of which, made into an ointment, is said to cure convulsions from wounds, and to heal ulcers ; and the juice of the bark, aphthae and dysentery. CAI/IBER. The diameter of any cylin- drical body. CAL/IDUM ANIMA'LE. Animal heat. CALIDUM INNATUM. Animal heat, or Vis Vito3. CALFGO. A mist. Obscurity of vision, caused by a speck on the cornea; also, the speck itself. It is divided into six species : 1. Caligo palpebrarum, obstructed vision from disorder in the eyelids ; 2. Caligo cornece, opacity of the cornea; 3. Caligo lentis, cataract; 4. Caligo pujjillce, blind- ness from closure of the iris ; 5. Caligo humorum, blindness from loss of trans- parency in the aqueous or vitreous humors ; 6. Caligo synizesis, blindness from closed pupil. CALISAY'A BARK. Cinchona flava. CALISTHENICS. Ko.kc;, beautiful, aud e-B»ec, strength. An exercise for strengthen- ing the body, and giving ease and elegance to the movements of the limbs. CA'LIX. Calyx infundibulum ; from xax/£, a cup. Small membranous canals which surround the papilla? of the kidneys, and open into the pelvis. CALLE'NA. Old name for a kind of nitre or saltpetre. CALLICOCCA IPECACUANHA. Ce- phaelis Ipecacuanha. CAI/IPERS. Compasses with curved CAL 117 CAL legs. Used in vulcanite work to measure the thickness of the plate. CAI/ICES. Calyces. From seven to thirteen funnel-shaped tubes, called the infundibula, into which the points of the papillae of the kidneys project. CALLICAR'PA AMERICA'NA. A plant of South Carolina and Virginia. The leaves have been used in dropsy. CALLIDON /r riA. From kgao?, beauti- ful, and oiovs, a tooth. The art of pre- serving the beauty of the teeth. See Den- tal Hygiene. CALLOSITY. Callositas. Preternat- ural hardness. CAI/LOUS. Callosus. Hardened ; in- durated, as the edges of an ulcer. CAI/LUS. The bony matter thrown out between, and uniting the fractured ex- tremities of a bone. It is also applied to induration of a soft or fleshy part. CAI/OMEL. Calomelas; from xaxo?, good, and f/sxa?, black. A term originally applied to black sulphuret of mercury, but now to Hydrargyri chloridum mite, mild chloride of mercury ; which see. CA'LOR. Heat. Calor Anima / lis. Animal heat. Calor Fer'vens. Boiling heat. Calor Le / nis. Gentle heat, between 90° and 100° Fahr. Calor Mor / dicans. A term applied in Pathology to the biting and pungent heat of the skin. A dangerous symptom in typhus fever, which leaves an unpleasant smarting sensation on the fingers for several minutes after touching them. CALOR / IC. Caloricum; from calor. The matter, cause, or agent by which all the effects of heat are produced. Caloric, La / tent. Insensible heat. That portion of heat existing in all bodies not made evident by approaching the ther- mometer; also heat passing into ice as it becomes water, and into liquids to convert them into vapor. Caloric, Specific. The amount of heat required to raise different bodies to an equal degree of temperature. CALORIFICATION. Calorificatio ; from color, heat, &r\d Jieri, to become. The production of heat ; especially the function of generating animal heat. CALORIMETER. From calor, heat, and /utrpov, a measure. An instrument by which the whole quantity of absolute heat existing in a body, in chemical union, can be ascertained. CALORIMO'TOR. A galvanic appara- tus invented by Dr. Hare, of Philadelphia, for evolving caloric. CALOTROPIS GIGANTEA. Ascle- pias gigantea. An Indian plant known under the name of mudar. It is alterative and sudorific. CAL / THA. A genus of plants of the order Eanunculacece. Caltha Palus'tris. Populago. The common single marsh marigold. There are several other species. CALUM / BA. Calumbo. Columba. A root having an aromatic smell, a bitter, pun- gent taste, and tonic and antiseptic proper- ties. Dose gr x to £j in powder. Calumba, American. Indian Lettuce, Yellow Gentian, Golden Seal. The root is used in the same cases as the true Calumba. CAI./VA. Calvaria; sometimes improp- erly called calvarium. From calvus, bald. The scalp or upper part of the cranium is so called because it often becomes bald. CALX. From kalah, to burn. Chalk; lime. Also, in old chemical language, an oxide. Calx Antimo'nii. Oxide of antimony. Calx Chorina'ta. Chloride of lime. Bleaching powder. Calx cum Ka / li Pu / ro. Potash with lime. Calx Hydrargyri Alba. Ammoniated mercury. Calx, Metallic. A metal which has undergone calcination, combustion, or some other equivalent process. Calx Viva. Quicklime. CALY / CES. Small membranous caps which cover the points of the papillae of the kidney. Their union forms the infundi- bula. CALYCIFLO'R^E. From calx, a flower- cup, and flos, a flower. Plants which have their stamina inserted into the calyx. CALYCIFORM. Shaped like a calyx. CAL / YCLE. In Botany, a row of small leaflets on the outside at the base of the calyx ; also the outer proper covering of the seed adhering to it. CAM 118 CAN CAI/YCOID. From calyx, and «ca\v7rro, to cover. The outermost of the enveloping organs of a flower. The flower-cup. The membran- ous cup or sac surrounding one or two of the papilla? of the kidney. CAM / BIUM In Physiology, the nutri- tious humors supposed to be elaborated from the blood to repair the losses, and accom- plish the increase of the various organs of the body. In Botany, a colorless, viscid juice, found in the spring between the bark and wood of trees, which, it is supposed, be- comes gradually organized, assuming the vegetable structure. CAMBO'GIA. From Cambodia, in the East Indies, where it is obtained. Gam- boge, which see. CAMBU'CA. Cambucca membrata. A bubo or ulcer in the groin or near the geni- tals. CAM / ERA. A chamber or cavity. Ap- plied to the chambers of the eye. Camera Lu'ctda. An instrument mak- ing the image of any object appear on the wall in a light room. Camera Obscura. An optical apparatus for throwing the image of external objects on a white surface, in a dark room, and rep- resenting them in their proper colors and CAMPA'NA. A bell. In Chemistry, a dish or cover shaped like a bell, used in making sulphuric acid. CAMPANULA. A genus of plants of the order Campanulaceai. Campanula Trache'lium. Great throat wort, the root of which was formerly used in decoction for sore throat and relaxation of the uvula. CAMPAN/ULATE. Bell-shaped. A term in Botany, applied to the calyx and corolla, when shaped like a little bell. CAMPHENE, or CAMPHINE. A sub- stance procured from common turpentine; with an equivalent of oxygen it forms cam- phor. CAMPHOR. From the Arabian capJiur or kamphur. Camphor; a concrete sub- stance, derived from the Laurus Camphora, and purified by sublimation ; of a crystalline texture, strong fragrant odor, and possess- ing narcotic and diaphoretic properties. Camphor, Borneo. See Borneo Cam- phor. Camphor, Liquid. Camphor oil ; the fluid obtained from the young camphor tree, Dryobalanops Camphora, by incision into the tree. Camphor, Oil of. Nitrate of camphor. A solution of camphor in dilute nitric acid ; also applied to liquid camphor, and lini- ment of camphor. Camphor Water. Aqua Camphora 3 ,. U. S. Mistura camphora^. Camphor mix- ture ; a mixture of camphor, alcohol, car- bonate of magnesia, and distilled water. CAM'PHORA OFFICINA'RUM. The Laurus Camphora, or camphor tree, a na- tive of China and Japan. CAMPHORS FLO'RES COMPOS'- ITI. Camphor sublimed with benzoin. CAMPHORA'TA. See Camphorosma. CAMPHORATE. Camphoras. A salt resulting from the union of camphoric acid with a salifiable base. CAMPHORATED. Relating to, or con- taining camphor. Camphorated Tincture of Opium. See Paregoric. CAMPHORIC ACID. Acidum cam- phoricum. An acid obtained by repeated distillation of nitric acid from camphor. CAMPHRONE. A light oily substance obtained by dropping pieces of camphor into a porcelain tube containing quick lime, heated to redness and condensing the vapor. CAMPYLO'TIS. From k^ttvko;, bent. A preternatural incurvation of a part : also a distortion of the eyelids. CAMWOOD. A red dye-wood, the product of the Baphia nitida, a native of Sierra Leone. CANADENSIS. Canadian ; the name of a balsam. See Canada Balsam. CANAL. Canalis; ductus ; meatus. A channel or passage for fluids or solids. Canal, Alimentary. The canal lead- ing from the mouth to the anus. Canal, Arachnoi'dian. A canal, sup- posed to have been discovered by Bichat, formed by the extension of the arachnoid over the transverse and longitudinal fissure CAN 119 CAN of the brain, and which surrounds the vena magna galeni. Cruveilhier denies the ex- istence of this canal. Canal, Arte / rial. Ductus arteriosus. Canal of Fonta'na. The minute vas- cular canal situated within the ciliary liga- ment. It is also termed the ciliary canal. Canal, Hy / aloid. A cylindrical body formed by the reflection of the hyaloid membrane into the interior of the vitreous body. Canal, Intestinal. That portion of the alimentary canal formed by the intestines. Canal of Ja'cobson. Tympanic canal. Canal, Medulla'ry. The cylindrical cavity in the shaft of a long bone. Canal, Na / sal. Lachrymal canal. Canal of Nuck. A cylindrical sheath formed around the round ligaments of the uterus, by a prolongation of the peritoneum, into the inguinal canal. Canal of Petit. A triangular canal, situated immediately around the circum- ference of the crystalline lens. Canal of Schlemm. A minute circular canal at the junction of the sclerotica and conjunctiva. Canal, Spi'nal. Vertebral canal. Canal, Tympa / nic. A canal opening on the lower surface of the petrous portion of the temporal bone, containing Jacobson's nerve. CANA'LIS ARTERIOSUS. Arterial duct; a vessel through which the blood passes in the foetus from the pulmonary artery into the aorta, but which is obliterated after birth. Canalis Semicircula / ris. The semi- circular canal. There are three in the pos- terior portion of the labyrinth of each ear, which open by five orifices into the vestib- ulum. Canalis Veno'sus. A canal which con- veys the blood in the foetus from the porta of the liver to the ascending vena cava, but it ceases to exist after birth. CANALICULATE. Canalic'ulatus. Channelled ; furrowed. In Botany, a deep longitudinal furrow or groove above, and convex underneath ; applied to the stem- leaves or petioles of plants. CANALICULUS; plural, CANALIC- ULI. Diminutive of canalis, a canal. A little canal. Applied in Anatomy to some large lacunae which secrete mucus in the urethra. CANCELLA'TUS. From cancelli. Having a latticed appearance ; cancellated. CANCELLI. Lattice-work. The re- ticular or spongy texture of bones, consist- ing of numerous cells communicating with with each other. They contain a fatty matter, like marrow. CANCER. KapKtvH. Literally, a crab. In Zoology, a genus of crustaceous animals. In Pathology, a scirrhous tumor, generally terminating in a fatal ulcer, called by the Greeks carcinoma, from xapKivo;, a crab, from the resemblance of the affected part and the surrounding raised veins to that animal. The disease is ordinarily attended with severe lancinating pain, and the text- ure of the affected part is exceedingly vari- able. The following are the species enu- merated by Dr. Bayle : 1. The Chondroid ; from ^,ovJ)>oc, cartilage, and *t$os, likeness, or cartilaginifbrm. 2. The Hyaloid; from uax^, glass, and uJ'oc, likeness, or vitriform. 8. The Larino'id ; from \aptvoc, fat, and «cTo?, likeness, or lardiform. 4. The Bunioid; from Bvviov, a turnip, and «, to form. The oper- ation of transplanting a portion of the con- junctiva of the eyeball to the external canthus of the eyelids. CANTHUS. Kav&os. The angle or corner of the eye. CANTON'S PHOSPHORUS. A sub- stance made by exposing three parts of cal- cined oyster-shells with one of flowers of sulphur, in a covered crucible, to a red heat for one hour. On exposure to light, the re- sulting substance acquires the property of shining in the dark. CANULA. Diminutive of canna, a reed. Cannula. A small tube used in surgery. See Cannula. CAOUT'CHINE. A volatile oil ob- tained by the destructive distillation of caoutchouc. CAOUTCHOUC. Indian rubber ; gum elastic. The concrete juice of the Hasvea guianensis, Jatropha elasticn and Siphonia elastica, South American trees. It is re- markable for its elasticity, and, being in- soluble in water and alcohol, is applied to various valuable purposes. It is used as a base for artificial teeth, &c. ; also in the manufacture of catheters, bougies, pessa- ries, and in the prosthesis of the velum pa- lati. It did not, however, answer very well at first for this latter purpose, as the secre- tions of the mouth and nasal cavities soon destroyed it. But this objection has been completely obviated by the discovery of a peculiar method of preparing it, vulcanizing the rubber. See India Rubber. CA'OUTCHOUCIN. Caoutchouci'na. The principle on which the properties of caoutchouc depend. CAPHOPICRITE. From **?«», to in- hale, and 7r«/jof, bitter. The bitter principle of rhubarb. CAPHORA. Caphura. Camphor. CAPILLAIRE. A syrup employed as a demulcent in coughs. CAPILLARY. Capillaris; from capil- lus, the hair. Resembling a hair; hair- like; small. It is applied to the extreme radicles of the arteries and veins. Also, parts of plants which bear a resemblance to hairs. Capillary Attrac/tion. The power by which a liquid rises higher in a fine tube than the surface of the liquid in which one end of it is placed. CAPILLIC'ULUS. Capillus, the hair. The arterial and venous radicles pervading more minutely than the capillaries, the ultimate elements of every organ. CAPILLUS. The hair. CAPIS'TRUM. Literally, a bridle. The CAP 122 CAP single split-cloth bandage used in fractures and other injuries of the lower jaw. CAPIPLE'NIUM. A sort of catarrh. Also, a heaviness or disorder of the head, common at Rome. CAPITAL. Capitalis. Belonging to the head. Applied to surgical operations ; it deuotes those of greater magnitude, as amputations, excisions, &c. CAPITA'LIA REME'DIA. Remedies for the bead. CAPITATE. From caput, the head. Headed ; terminated in a head or sudden enlargement. CAPITILU'VIUM. From caput, the head, and lavare, to wash. A lotion or bath for the head. CAPITITRAHA. Instruments to draw down the head of the foetus. CAPITCKNES. Foetuses whose heads are so large as to interfere with delivery. CAPIT'ULUM. Diminutive of caput. the head. A small head or knot. In Chemistry, an alembic. In Botany, a spe- cies of inflorescence, composed of many flowers, arranged in a globular form upon a common stem. CAPIVI OIL. See Copaiba. CAPNIS'MOS Fumigation. CAPNOMAR. From mmoc, smoke, f*°ip*, part. A volatile, transparent liquid, obtained from tar, and having the property of dissolving caoutchouc. CAPPARIS BADUC'CA. A species of caper cultivated in India, from the juice of which the natives make a liniment, said to be anodyne. The flowers are purgative. CAPPING THE NERVE OF A TOOTH. An operation recommended by Dr. Koecker for the purpose of protecting an exposed dental pulp from injury in filling a tooth. See Harris's Dental Surgery. CAP / RATE. A combination of capric acid with a base. CAPREOLA'RIS. From capreolus, a tendril, Capreolatus. Twisted ; contorted ; applied by some to the spermatic vessels. CAPRIC ACID. A volatile acid of a disagreeable odor, obtained from butter on its conversion into soap. CAPRILO'QUIUM. ^Egophony. CAPRINIC ACID. An acid with a sweet-like odor, obtained from butter in fine acicular crystals. CAPRINYL. The organic radical of the foregoing. Oil of rue is supposed to be its oxyhydrate. Its formula is C 20 H 19 . CAPRO'IC ACID. See Capronic Acid. CAPRON'IC ACID. A clear, oily, un- pleasantly smelling fluid, obtained from co- coanut oil, butter, and Limburg cheese. CAPRONYL. The basis of the forego- ing. Formula C 12 H 11 . CAP'S 1CIN. An acrid resin obtained from Cayenne pepper. CAPSICUM. From ***t*, to bite ; be- cause of its effect on the mouth. A genus of plants of the order Solanacece. Capsicum An'nuum. Cayenne pepper; Guinea pepper. It is a powerful stimulant, and produces, when taken into the stomach, a sense of heat and a glow upon the skin. It is used as a condiment, and is valuable as a medicinal agent. Dose, gr. v. Capsicum Frutescexs. Shrubby plants growing in hot climates, said to produce most of the Cayenne pepper brought from the West Indies and South America. CAP / SULA. Diminutive of capsa, a chest or case. A capsule. A membranous bag inclosing a part of the body, as the capsular ligament, the capsule of the crys- talline lens, &c. The matrices or sacs of the teeth are sometimes called capsules. In Botany, the membranous pericardium or seed-vessels of a plant. Capsula Atrabilia'ris. The supra- renal capsules, or supra-renal glands ; two flattened triangular bodies, one on each side, surmounting the corresponding kidney. Capsula Cordis. Capsule of the Heart. The pericardium. Capsula Lumba'ris. The receptaculum chyli. CAPSULAR. Capsularis. Having the form, or partaking of the nature, of a capsule. Capsular Ligament. A kind of liga- mentous bag surrounding every movable ar- ticulation, and containing the synovia. CAPSULE. Capsula. Capsule, Gelatinous. An envelope of gelatin inclosing copaiba and other disagree- able oils, to conceal their taste. . Capsule of Glissox. A dense cellular membrane surrounding the vena porta? in its most minute ramifications in the liver, described by Glisson. CAR 123 CAE Capsule, Renal. Supra-renal capsule. See Capsula Atrabiliaris. Capsule Seminal. A name given by Bartholine to the dilatation of the extremity of the vas deferens. Some anatomists give this name to the vesiculce seminales. Capsule, Synovial. A membranous bag enveloping an articulation, and secret- ing a lubricating fluid. CAPSULITIS. Capsula, a capsule. Inflammation of the capsule of the eye. CAPUT. The head, cranium, or skull ; the upper extremity of a bone, as the head of the femur. Also, the origin of a muscle, as the long head of the biceps ; and it is sometimes applied to a protuberance re- sembling a head, as also to the beginning of a part. Caput Gallinag / inis. Verwnonta'num. A protuberance in the urethra in men, situ- ated before the neck of the bladder. Caput Ob'stipum. Wry neck. Caput Pup/gum. A remedy which causes a defluxion from the head, as an errhine, sialagogue, &c. Caput Scapulae. Acromion. Caput Succeda'neum. A swelling of the head of the foetus, which occurs in cer- tain cases of labor. Caput Testis. The epididymis. CARABAC'CIUM. The name of a yel- lowish aromatic wood of India, supposed to possess stomachic and antiscorbutic proper- ties. CAR / ABUS. A genus of Coleopterous insects. Two species, the Crysocephalus and Ferrugineus, were at one time much vaunted as a remedy for toothache, and even quite recently they were highly rec- ommended in Germany for this purpose. They were first rubbed between the thumb and finger, and then applied to the affected tooth and gum. See Coccinella Septem- punctata. CARAMEL. The black, shining carbon- aceous mass resulting from the slow com- bustion of sugar. CARAN'NA. Caran'nw gummi ; car- agn'a. A concrete resinous substance, having an aromatic smell and bitter taste, formerly used as an ingredient in vulnerary balsams, and in discutient and strengthen- ing plasters. CAR'AT. From the Arab kyrat, a weight, or from mpariov, a small weight, or according to some, from kuara, an African term for the bean used by the natives of the Gold Coast for weighing gold dust. A weight of four grains, used in weighing diamonds. It is also used in reference to the fineness of gold. For example, sup- pose the mass spoken of " to weigh 24 car- ats, of twelve grains each ; and the pure gold is called fine. Thus, if gold be said to be 22 carats fine, or standard, it is implied that 22-24ths are pure gold, and 2-24ths al- loy. In the process of assaying gold, the' real quantity taken is very small, generally from six to twelve grains ; and this is term- ed the assay pound. It is subdivided into 24 carats, and each carat into four assay grains, and each grain into quarters ; so that there are three hundred and eighty-four separate reports for gold. When the gold assay pound is only six grains, the quarter assay grain only weighs l-64th of a grain. This will give some idea of the accuracy re- quired in the weights and scales used for such delicate operations."* The still further division of the carat brings it to l-32d of the original weight. This method of ex- posing the fineness of gold, however, is gradually yielding to the more scientific decimal mode. CARAWAY. See Carum. CARBAZCKTIC. A peculiar acid formed by the action of nitric acid on indigo. CARBO ANIMA'LIS. Carlo carnis. Animal charcoal. Ivory-black. See Char- coal, Animal. Carbo Fossilis. Stone coal. Carbo Ligni. Charcoal. CARBOHYDRATES. Hydrates of car- bon. Organic substances composed of nearly equal parts of carbon, hydrogen, and oxygen. Cellulose, starch and sugar be- long to this class. CARBOL/1C ACID, or PHEXOLE. Obtained from coal-tar, and when perfectly pure is a colorless crystallized solid, and of a taste at first pungent, and then sweet. Its odor is like that of tar. It is very soluble in alcohol, ether, chloroform, and benzole. For dental use it is rendered fluid, by dilu- ting it with a little Cologne water. It is used in dentistry as an application # Brand's Encyclopaedia. CAR 124 CAR to the exposed pulp of a tooth, preparatory to filling it, when without its aid the general practice would be to destroy the pulp; also, to sensitive dentine. It is allowed to remain in contact with the nerve of a tooth for ten minutes. When applied to sensi- tive dentine it is allowed to remain from five to fifteen minutes. CARBOMETHYI/IC ACID. An acid resulting from the action of carbonic acid upon pyroxylic spirit. CAR/BON". From carbo, coal. In Chem- istry this term is used to signify a pure com- bustible base of the varieties of charcoal and other carbonaceous substances. The diamond is the purest form of crystallized carbon. Carbon, Sesqui-Iodide of. A yellow precipitate, obtained by adding water to an alcoholic solution of iodine deprived of its color by potassa. It has been used in glan- dular and cutaneous affections. Carbon 7 , Sdlphuret of. A transparent colorless fluid, of an unpleasant taste and smell. It was formerly supposed to be dia- phoretic, diuretic, emmenagogue, and anti- spasmodic. Car'bon, Mineral. A term applied to charcoal with various proportions of earth and iron, without bitumen. It has a silky lustre, and the fibrous texture of wood. It is found stratified with various kinds of coal. CARBONACEOUS. Carbo, coal, car- bon. Of the nature of carbon. CAR'BONAS. Carbonate. CARBONATE. A salt formed by the union of carbonic acid with a salifiable base. CARBONATED. Carbonatus. Aera- tus. That which is combined with carbonic acid. CARBON'IC ACID. Ac'idum carbon'i- cum. Fixed air ; carbonaceous acid ; me- phitic acid. A transparent, colorless, gase- ous acid, without smell, irrespirable, and incapable of supporting combustion. It is a compound of carbon and oxygen, CO. In the form of carbonic acid gas it consti- tutes a small proportion of atmospheric air. It is often found in mines, dry wells, &c. Breathing it is often fatal to animal life. See Poisons. CARBONIC ACID WATER. Mineral or soda water, used as a vehicle for saline cathartics. Carbonic Oxide. Gaseous oxide of car- bon ; the protoxide of carbon, CO. It is a colorless gas formed when carbon is burned with an imperfect supply of oxvgen. CARBONICUM NA'TRUM. Carbon- ate of soda. CARBO'NIS SULPHURE'TUM. Sul- phuret of carbon. CARBO'NIUM. Carbon. CARBONIZATION. The conversion of orgauic substances into charcoal. CARBUNCLE. See Anthrax. CAR'BURET. Carburetum. A com- pound of carbon with any simple combusti- ble substance. For example, carburetted hydrogen is hydrogen holding carbon in so- lution. Steel is a carburet of iron. Carburet of Sui/phur. A liquid com- pound of carbon and sulphur. It was formerly called alcohol of sulphur, and is now obtained by passing the vapor of sul- phur over ignited charcoal. CARBURETTED HY'DROGEN. Car- bon and hydrogen ; light inflammable air ; olejiant gas. Hydroguret of carbon. There are two gaseous compounds of carbon and hydrogen, olejiant gas, or oil-making gas, so called because it forms an oily compound with chlorine, and light carburetted hydro- gen, found in some coal mines, which is known by the name of fire damp, and is the cause of the explosions which sometimes took place previously to the invention, by Sir Humphrey Davy, of the safety lamp. It is also evolved from the mud of stagnant pools and ditches. Olefiant gas is obtained by distilling a mixture of one part of al- cohol and two in bulk of sulphuric acid, and collected over water, which is said to absorb more than one-seventh of its volume of the gas. CAR'BYLS. A term used by Lowig, in his classification of animal substances, to denote those radicals which consist of two or more atoms of carbon. Thus, oxalic acid C 2 3 H 3 , i* said to be a hydrated oxide of oxotyl, Ox or C 2 , which is a carbyl. CARCIXO'MA. From *a F >u>o;, a crab, a cancer. See Cancer. Carcinoma H-emato'des. Hcematodes. Fungus h&matodes. Most authors use the term in the same sense as cancer. Some apply it to incipient cancer, and some to CAR 125 CAR that species of cancer which resembles cer- ebral substance. CARCINOMATOUS. From carcinoma. Belonging to carcinoma. CARD'AMINE. A genus of plants of the order Cruciferce. Cardamine Praten'sis. The cuckoo- flower, or ladies 1 smock ; a perennial her- baceous plant, formerly supposed to be diuretic and antispasmodic. CAR'DAMOM. Cardamo'mum ; from Kapha, the heart, because it was supposed to strengthen this organ. The fruit of Alpinia cardamomum is a warm and grateful aro- matic, but chiefly employed as an ingredient in compound medicinal preparations. Dose, gr. x to xxx. Cardamoms, Ceylon. The fruit of the Amomum Grana Paradisi, consisting of seeds of an ovate form, often angular and slightly cuneiform, and of a strong hot and peppery taste. They are rarely used as a medicinal agent. CARDAMOMUM. See Cardamom. CAR / DIA. Kapha, the heart. Also, the upper orifice of the stomach. CARDIAC. Cardiacus, from Kapha, the heart. Relating to the heart. Also, to the superior opening of the stomach. Also, applied to invigorating medicines. Cardiac Arteries. Coronary arteries. Two arteries given off by the aorta above the free edges of the sigmoid valves, and distributed to both surfaces of the heart. Cardiac Nerves. The nerves of the heart. They are distinguished into right and left, and arise from the cervical gan- glia. Cardiac Gang'lion. A ganglion sit- uated beneath the arch of the aorta. Cardiac Plex / us. A network formed by the cardiac nerves at the back part of the aorta, near the heart. Cardiac Veins. The coronary veins. They are four in number, two anterior, and two posterior, and open by one orifice into the right auricle of the heart. CARDIA'GRA. Gout of the heart. CARDIAG'RAPHY. Cardiagra'phia, from Kapha, the heart, and ypa-o?, a discourse. A treatise on the heart. CARDIATOM'IA. From Kapha, the heart, and rtfxvttv, to cut. Dissection of the heart. CARDIATROPH'IA. Atrophy of the heart. CARDIEC'TASIS. From Kapha, heart, and tKrartc, extension. Dilatation of the heart. CARDIELCO'SIS. From Kapya, the heart, and «x«of, an ulcer. Ulceration of the heart. CAR / DIOCELE. From Ka f ha, and *ijA», a tumor. The protrusion of the heart through a wound of the diaphragm. CAR'DIODYNIA. From Kapha, and cJW», pain. Pain in the heart. See Car- diagra. CARDIOMALA'CIA. From Kapha, the heart, and /xa\aKia, softness. Softening of the heart. CARDION'CHUS. From *apSia, the heart, and oyKog, a tumor. An aneurism of the heart, or of the aorta near it. CARDIOPAL/MUS. From mptta, the heart, and 7ra>,y.oc, pulsation. Palpitation of the heart. CARDIOPATHY. Cardiopath'ia. From K*pha, the heart, and naSic, disease. Disease of the heart. CAR'DIOPERICARDFTIS. Inflamma- tion of the heart and pericardium. CARIORRHEX'IS. From Kapha, the heart, and p^it, rupture. Rupture of the heart. CARDIOSTENO'SIS. Contraction of the openings of the heart. CARDIOT'ROMUS. From Kapha, the heart, and rpo/uoc, tremor. Feeble palpita- tion, or fluttering of the heart. CARDIOT'ROTUS. One wounded in the heart. CARDFTIS. From *V<«, the heart, and itis, inflammation. Inflammation of the heart. CAR / DO. A hinge. The articulation called ginglymus. CAR'DUUS. A genus of plants of the order Composites. Carduus Domes'ticus. The artichoke. Carduus Maria'nus. The common CAK 126 CAE milk-thistle, or lady's thistle. The seeds yield a bitter oil. Carduus Pixeus. Pine thistle, or gum- my-rooted atractylis. Carduus Sati'vus. Carduus domesVi- cus. Artichoke. Carduus Solstitia / lis. The common star thistle. Carduus Tomento'sus. The cotton this- tle. CAREBA'RIA. From *«/>», the head. and /3a/>Gf, weight. Heaviness of the head. CARE'NA. The twenty-fourth part of a drop. CARIBBEAN BARK. The bark of Ex- ostema caribceum ; a false cinchona. CAR'ICA. The fig-tree. See Ficus Ca- rica. Carica Papa / ya. The papaw-tree ; a native of warm climates ; every part of which, except the fruit, yields an acrid milky juice, considered, while fresh, a rem- edy for tape- worm. CARIES. From *apu, to abrade, or, ac- cording to some authors, from the Chaldee word Karah, to dig in. Ulceration of bone. Caries Dentiuji. See Caries of the Teeth. Caries of the Teeth. A chemical de- composition of the earthy part of any por- tion of a tooth, accompanied by a partial or complete disorganization of the animal framework of the affected part. Mr. Thomas Bell has substituted for caries, the term gangrene, supposing the latter to convey a more correct idea of the true nature of the affection ; but as the lat- ter might be applied to another affection of the teeth, namely, necrosis, with as much propriety as to the one now under con- sideration, the author thinks it better to con- tinue the use of the former. The occurrence of the disease is ordinari- ly first indicated by an opaque or dark spot on the enamel ; and, if this be removed, the subjacent dentine will exhibit a black, dark brown, or whitish appearance. It usually commences on the outer surface of the den- tine, under the enamel ; from thence it pro- ceeds towards the centre, until it reaches the pulp-cavity. If the diseased part is of a soft and humid character, the enamel, after a time, usuallv breaks in, disclosing the ravages it has made on the subjacent dentine. But this does not always happen ; the tooth sometimes remains nearly perfect, until its whole inte- rior structure is destroyed. There is no portion of the crown or neck of a tooth exempt from the disease; yet some parts are more liable to be first attacked than others; as, for example, the depressions in the grinding surfaces of the molars and bicuspids, the approximal sides of all the teeth — the posterior or palatine surfaces of the lower incisors; and, in short, wherever an imperfection in the enamel exists, it may develop itself. When the enamel is first attacked, the disease is usually called erosion ; but as the enamel does not contain as much animal matter as the subjacent osseous structure, the part is washed away by the saliva of the mouth, while in the dentine, in most in- stances, it remains, and may be removed in distinct laminae, after the calcareous mole- cules have been decomposed. In teeth that are very hard, the decayed part is of a much firmer consistence, and of a darker color, than in soft teeth. Some- times it is black; at other times it is of a dark or light brown; and at other times again, it is nearly white. As a general rule, the softer the teeth, the lighter, softer, and more humid the decay. The color of the decayed part, however, may be. and doubt- less is, in some cases, influenced by other circumstances — perhaps by some peculiar modification of the agents upon the pres- ence of which the disease is dependent. Three distinct theories of the cause of dental caries have, at different times, pre- vailed — 1st, the chemical theory; 2d, the vital, and 3d, the chemico-vital. To these a 4th might be added, viz., the endosmotic. but this last is merely an explanation of the first. Fauchard, Auzebe, Bourdet, Lecluse, Jourdain, and most of the French writers of the eighteenth century, on the diseases of the teeth, as well as nearly all of the more modern French authors, though their views with regard to the causes of dental caries are exceedingly vague and confused, express the belief that the disease is. for the most part, the result of the action of chemi- cal agents; such, for example, as vitiated saliva, the putrescent remains of particles of CAE 127 CAE food lodged between the teeth, or in their interstices, acids, and a corrupted state of the fluids conveyed to these organs for their nourishment. They also mention certain states of the general health, mechanical in- juries, sudden transitions of temperature, &c, as being conducive to the disease. A similar explanation, too, of the cause of dental caries, is given by Salmon, the au- thor of a Compendium of Surgery, published in London, 1644. Since the publication of Mr. Fox's cele- brated treatise on the " Natural History and Diseases of the Teeth," in 1806, and until quite recently, inflammation of the dentine has been regarded by most English writers as the immediate cause of the disease. Having, as this author supposed, discovered an identity of structure between the teeth and other bones, he at once came to the conclusion that the diseases of the one were the same as those of the other. But subse- quent observation has shown the inference to be incorrect. There is but little, if any, analogy between the disease as it occurs in the one and manifests itself in the other. In the teeth it consists simply in the decom- position of the inorganic basis, and the dis- organization of the animal framework of the affected part, whereas, in other bone, it is analogous to ulceration in soft parts, constantly discharging a fetid sanies and throwing out fungous granulations, pheno- mena which dental caries never exhibit. If inflammation of the dentine, then, is not the cause of the decay of these organs, how is the disease produced? This question can only be answered in one way. It is the result of the action of external chemical agents, and this explanation of the cause is not based upon mere hypothesis. It is sup- ported by facts which cannot be successfully controverted. It is well known that the fluids of the mouth, especially the mucus, when in a vitiated condition, are capable of decom- posing the enamel of teeth not possessed of more than ordinary density. The truth of this assertion is demonstrated by the fact that dead teeth, and the crowns of human teeth, or those of animals, when employed as substitutes for the loss of the natural organs, are as liable to decay as living teeth, and the decayed part of the one exhibits about the same characteristics that it does in the other. The same is true, too, with regard to all artificial teeth constructed from bone of any sort, or of ivory. If the disease was dependent upon any vital oper- ation, neither dead teeth nor dental substi- tutes composed of bone, would ever decay. But inasmuch as they do, it is reasonable to suppose that the cause which produces it in the one case is capable of producing it in the other. Inflammation may influence the suscep- tibility of a tooth to the action of the causes which produce decay, and even the appear- ance of the decayed part, but it is not the immediate cause of the disease. This theory of the cause of dental caries explains the rationale of the treatment at present adopted for arresting its progress. By the removal of the decomposed part and the filling the cavity with an indestructible material, the presence of those agents, upon the chemical action of which the disease depends, is prevented, and its further prog- ress arrested. Among the direct causes of caries, the following may be enumerated; depositions of tartar upon the teeth ; a febrile or irrita- ble state of the body j a mercurial diathesis of the general system; artificial teeth, im- properly inserted, or of bad materials; roots of teeth ; irregularity in the arrangement of the teeth; too great a pressure of the teeth against each other; and, in short, every- thing that is productive of irritation to the alveolar and dental membranes, or gums. All teeth are not equally liable to decay, or in other words, not equally susceptible to the action of the causes that produce the disease. Teeth that are well formed, well arranged, and of a compact and close text- ure, seldom decay, and even when they are attacked by caries, the progress of the dis- ease is less rapid than it is in imperfectly formed teeth, or teeth which are of a soft texture, or irregularly arranged. CA'RIOUS. Affected with caries. CARLFNA. A genus of plants of the order Compositce. Carlina Acanthifo / lia. The wild ar- tichoke. Carlina Acaui/is. The carline thistle, at one time used as a vermifuge. CARMINAN'TIA. See Carminative. CARMINATIVE. Carminaiivus ; from CAR 128 CAR carmen, a verse, or charm; because their operation was ascribed by the ancients to a charm. Medicines which allay pain and dispel flatus from the alimentary canal. CARMINE. A beautiful red pigment prepared from cochineal. CAR'NEzE COLUMNS. The fleshy fasciculi in the ventricles of the heart. CAR'NEOUS. Carncus ; carnosus ; from caro, carnis, flesh. Fleshy. Resem- bling flesh. CARNIC'ULA. Diminutive of caro, flesh. The gums. A small fleshy sub.- stance. CARNIFICA'TION. Carnificatio; from caro, flesh, and fieri, to become. Becom- ing flesh ; conversion into a substance re- sembling flesh; a term applied in Pathology to a morbid alteration in which certain or- gans assume the appearance of flesh, as in hepatization of the lungs. CARNIFOR'MIS. From caro, flesh, and forma, likeness. Having the appear- ance of flesh ; usually applied to an abscess, having a hardened orifice. CARNIV'ORA. An order of animals which subsist on flesh. CARNIVOROUS. From caro, flesh, and voro, I eat. Feeding on flesh. Any- thing which eats flesh. Applied also to sub- stances which destroy fleshy excrescences. CARNO'SUS. Carneous; fleshy. CA'RO. Caro, carnis. Flesh ; the red part or belly of a muscle; the pulp of fruit. CAROLFNA PINK. Spigelia Marilan- dica. Anthelmintic. Dose of the powder, gr. x to xx. The fluid extract is best, the dose of which, for children, is 3j ; for adults, ^ss, given with senna. CAROT'ICUS. Kapov, to stupefy. Hav- ing power to stupefy ; carotid. Applied in the plural neuter (carotica) to narcotics. CARCKTID. From x-apew, to cause tosleep. The carotid artery is so called because, when it is tied with a ligature, the animal becomes comatose. Carotid Artery. Arteria carotidea. A large artery on each side of the neck for carrying the blood to the head. The right arises from the arteria innominata, and the left, from the arch of the aorta. Each is divided into an external and internal. The superior thyroideal, the sublingual, the in- ferior, external, and internal maxillary, the occipital, the external auditory, and the temporal, are branches of the external ca- rotid. The anterior cerebral, the posterior, the central artery of the optic nerve, and the internal orbital, are given off within the cavity of the cranium by the internal ca- rotid. Carotid Canal. A canal in the tem- poral bone traversed by the carotid artery, and several nervous filaments. Carotid Foramina. The foramina at each extremity of the carotid canals. They are distinguished into external and internal. Carotid Ganglion. See Carotid Nerve. Carotid Nerve. A branch from the superior cervical ganglion of the great sym- pathetic, ascending by the side of the inter- nal carotid artery, and forming, in the caro- tid canal, with branches of other nerves, the carotid plexus. The carotid ganglion is a small gangliform swelling on the under side of the artery. CAROTIN. A peculiar crystallizable, ruby-red, neutral principle, inodorous and tasteless, obtained from carrots. CARPATHIAN BALSAM. A product of the Pinus cembra. CARPHOLOG'IA. From Kap, to burn. A burn or scald. CATACAU / S1S. From xaroKCuee, to burn. Combustion. Catacausis Ebrio / sa. From Karax.aia>, to burn, and ebriosus, full of strong liquor. General combustibility of the body. CATAC'LASIS. From x.ara K xaa>, to break or distort. Distorted eyelids. CATACLEIS'. From *ar*, beneath, xteis, the clavicle. The first rib beneath the clavicle. Also, applied to the acromion, and the connection of the sternum with the ribs. CATACLYS'MUS. Catachjs'ma; from xarax,w£itv, to submerge, inundate. A clys- ter. Also, applied to a shower bath and ablution. CATAG / MA. From Kara, and a^a>, to break. A fracture. CATAGMAT'ICS. From wr^a, a fracture. Remedies supposed to promote the formation of callus. CATALEPSY. Catalep'sia; from Kara- xa/u@ava>, to seize, to hold. A disease char- acterized by sudden suspension of motion and sensation, the limbs and trunk remain- ing in any position in which they may be placed. CATAI/YSIS. From Karaxvu, to dis- solve. A force or power which decomposes a compound body by mere contact; decom- position by the catalytic force, or the action of presence. CATALYTIC. Relating to catalysis. Sometimes applied to medicines supposed to destroy a morbific agency in the blood. Catalyt/ic Force. That modification of the force of chemical affinity which de- termines catalysis. C AT AM ASSE'SIS. From nar^^trao/uat, to manducate. Grinding of the teeth, and biting of the tongue, as is often the case in convulsions and epilepsy. CATAME'NIA. The menses, or monthly discharge from the uterus of females between the ages of fourteen or fifteen and forty-five. CATAPAS'MA. From varan-air tra, a sprinkle. A dry compound medicine pow- dered, to be sprinkled on ulcers. CATAPHON'ICA. Reflection of sound. CATAPH'ORA. From Kara, to make sleepy. A term applied by some to a disposition to sleep, and by others to pro- found sleep. CATAPHRAC'TA. From taratppatr,*, I fortify. A bandage for the thorax and shoulders. CAT'A PLASM. Cataplas'ma, from Ka } to strike. Sudden deprivation of sensa- tion or power in any of the organs or mem- bers of the body. CATAPSYX'IS. From Kara^u**, I refrigerate. Coldness of the body without shivering. CATAPTCKSIS. From **t*7t/*-™, to fall down. The action of suddenly falling down, as in apoplexy. CAT'ARACT. Catarac'ta, from k*t*- pna-tra, to confound, or disturb. A cataract. Loss of sight, caused by opacity of the crys- talline lens. -or its capsules, which prevents the rays of light from passing to the optic nerve. Cataract is divided into true .and false ; the former when the disease is seated in the lens or capsule, and the latter, when consisting of a deposition of matter between the capsule and lens. It is also distin- guished into idiopathic and accidental, and into hard, caseous, and milky, according to its consistence^ also into white, brown, gray, yellow, black, pearly, and green, according to its color. It may, also, be simple or com- plicated, with glaucoma*, amaurosis, adhe- sion, or specks on the cornea. CATARRH / . Catar'rhus, from narappia, I flow down. Increased secretion and dis- charge of fluid from the mucous membrane of the nose, fauces, and bronchia, accom- CAT 132 CAT panied with fever, cough, sneezing, loss of appetite and lassitude. It sometimes as- sumes an epidemic form, prevailing very generally throughout a whole country. CATARRHAL. Relating to catarrh. CATARTIS'MUS From xarapTi'ur. to repair, replace. Coaptation of a fractured or luxated bone. CATASTAI/TIC. From MrtnA^ to restrain. Medicines that check evacuations, as astringents and styptics. CATASTASIS. From *oSivt*ui. I es- tablish. The state, condition, or constitu- tion of anything. CAT'ECHU". The various extracts from the wood of the Acacia catechu. It is a powerful astringent, of a reddish-brown color, inodorous, and possessing a bitter astringent taste. It is readily soluble in water, and yields its virtues to alcohol in the form of tincture. Its active principles are tannic and cateehuic acids. Very effi- cient as a local styptic, and is indicated in the treatment of diseases of the gums. kc. Dose as an astringent, gr. x to gr. xxx. Catechu Tasvdt. Catechu Tannic Acid. A tannin obtained from catechu. It is a yellow, amorphous mass, soluble in water, alcohol, and ether. It gives a grayish-green precipitate with salts of the peroxide of iron, and none at all with tartrate of anti- monv and potassa. CATECHUIC ACID. Catechm. An acid obtained from catechu. It somewhat resembles gallic acid ? aud gives a blackish- blue color to persalts of iron. CATEIAD'IOX. From «aio and «a, a blade of grass. A long instrument thrust into the nostrils to excite hemorrhage. CATH-E'RESIS. Exhaustion. CATH-£RET'IC. Catharet'ica : from xaSaip'jc. to remove. Corrosive or caustic substances used for the destruction of exu- berant granulations, warts, kc. CATHAR'MA. From naSaif*. to re- move. Matters purged from the bodv, whether caused by purgatives or otherwise. CATHAR'MUS. From ita&ap., to re- move. Purgation. Applied also to the cure of disease by magic. CATHAR'SIS. From *aSai P *. to take away, to purge. Natural or artificial pur- gation by any of the passages. CATHAR/TIC. Cathar'ticus: fromxaS- aicet, to purge. A medicine which, when takeu internally, increases the number of alvine evacuations. The medicines belong- ing to this class are numerous. CATHAR'TIX. The active principle of senna. CATHARTOCAR'PUS. Cassia fistula; a leguminous tree of the East and West Indies. It yields the cassia pulp of the Pharmacopoeia. CATHERETIC8. Mild caustics or es- charotics. CATH'ETER. Ka&tr*?. from *cW", to thrust into. A hollow tube to be intro- duced into the urinary bladder, to draw off the water, made of silver or elastic gum. Catheter, Eustachian. A catheter for opening obstructions in the Eustachian tube. Catheter Xa'sal. An instrument for catheterizing the nasal duct. CATHETER 'ISMUS. From M&mft a catheter. The introduction of a catheter into the bladder. CATHODE. From xaia and kT;?. a way : the downward way. or the direction in which the sun sets. A term invented by Fara- day, in his galvanic nomenclature, to indi cate what was formerlv called the negative ! pole of the battery. When the poles are placed east and west, the positive current enters at the anode (from am, upward, and '■■&'■.'>* or the way in which the sun rises), or eastern, and leaves at the western end of the circuit, whence its point of departure i has been called the cathode. CATHODIC. An epithet applied by Dr. Marshall Hall to the downward course of nervous action. CATHOL'ICOX. From zara, and am, universal. A universal medicine, or remedy ; supposed to be capable of curing diseases. CA riOX. From mto. and /:». that which goes. A term used by Far;:. indicate those atoms of a substance, under- | goiug galvanic decomposition, which appear ; at the cathode. Those appearing at the anode are called anions. CATIL'LIA. A nine ounce weight. CAT'LIXG-. A long, sharp-pointed, double-edged knife, used chiefly for dividing ! the interosseous ligameuts, in amputations of the forearm and leg". CATOCHUS. From xan^or, to detain. A spasmodic disease in which the body is CAU 133 CAY held in an upright position ; a species of catalepsy. CATOP'TRIC EXAMINATION OF THE EYE. A means of diagnosis in cataract, founded on the phenomena of re- flected light. Thus, when a lighted candle is held before the eye, if the cornea, the crystalline lens, and its capsules are trans- parent, three images will be seen ; the first from the cornea, and the other two from the anterior and posterior surfaces of the crys- talline lens, but opacity of any of these sur- faces will destroy their reflecting property. CATO'TICA. Cato'ticus ; from *.o?, a stock. A transverse fracture. CAULESCENT. Caules'cens. Having a true stem. CAU'LIFLOWER EXCRESCENCE. Excrescentia syphilitica. An excrescence which occurs in syphilitic diseases, chiefly about the anus and vulva. CAU / MA. Kav/ua, heat, from «.aia>, to burn. The heat of the body in fever ; burn- ing heat. CAUSE. That which produces an effect. An act preceding another and in which the former is necessary to the latter. CAU'SIS. From *a/», to burn. To burn. Act of combustion. CAUSO'MA. From *a/&>, to burn. Great heat. Inflammation. CAUS / TIC. CaustVcus ; from *«*«, to burn. A substance which, when applied to the body, produces a burning sensation, and disorganizes animal substances by de- stroying their texture. Caustic Alkali. Pure alkali. Caustic Barley. See Cevadilla. Caustic Holder, Colburn's. An in- strument intended to prevent fluid caustic, such as creasote or fluid nitrate of silver, from running down and cauterizing the lips when being applied to the gums. It is con- structed of a piece of wire two inches long, inserted in a handle, and over the wire is a glass tube one inch long. The tube slides over part of the handle to keep it firm, and a small cork, half way up the tube, keeps the wire in the centre of it. When the caustic is taken up on a small piece of cot- ton, if any should run down it is caught in the tube and prevented from touching the lips. Caustic, Lunar. Nitrate of silver. Caustic Soda. Soda caustica. Protox- ide of Sodium. The impure subcarbonate, treated with quicklime, and consequently deprived of its carbonic acid. It may be employed as a caustic, and is by some pre- ferred to the Potassa fusa, as it does not deliquesce and run. It is also used for purifying nitrous oxide gas. Caustic Volatile Alkali. Ammonia. CAUSTICUM. A caustic. CAUCUS. A name applied by Hippoc- rates to an ardent fever, from its extreme heat, supposed to be a variety of bilious intermittent. CAUTERIZATION. The act of cau- terizing. CAUTERY. Caute'rium; from *«/», to burn. An instrument used for burning or disorganizing the part to which it is applied. Formerly cauteries were divided into actual — the hot iron, and potential, which consists of some escharotic ; but it is now restricted to the first, or hot iron. Potential was then applied to kali pururn, or potassa, but this term is now used synonymously with caustic. CAVA, VENA. A name given to the CED 134 CEL two great veins of the body which meet at the right auricle of the heart. CAVER'NA. From cams, hollow. A cavern, an antrum. Applied to the female organs of generation. CAVERNOUS. Caverno'sus. Filled with small caverns or cavities. CAVERNOUS SINUS. A sinus on the base of the cranium. CAV'ITAS PUI/P.E, The pulp-cavity of a tooth. See Dental Cavity. CAV'IT Y. Cavitas, from cairns, hollow. Any hollow. Cavity Plate. A terra applied in Mechanical Dentistry, to a metallic base for artificial teeth, so constructed as to have one or more vacant spaces between it and the gums, which, when applied and the air exhausted, contributes very greatly to the firmness of its adhesion. See Harris's Den- tal Surgery. CAVUM DENNIS. See Dental Cavity. Cavum Nar'ium. The nares. Cavum O'ris. The mouth. CA'VUS. A hollow ; a cavity. CAWK. A name for sulphate of barvtes or heavy spar. CAYENNE PEPPER. The ground seeds of Capsicum annuutn. Guinea pepper. CEANO'THUS. A genus of plants of | the order Rhamnacece. Ceanothus Americanus. New Jersey tea; red root; a small shrub growing throughout the United States. The root is astringent, and said to be useful in syphilitic affections. CEAS'MA. From ma>, to split or divide. A fissure. CEBADILLA. The seeds of the Asagrea officinalis, a plant of the order Melanihacece. See Veratria. CE / CAL. Belonging to the caecum. See Csecal. CECUM. See Caecum. CE / DAR. A name given to several spe- cies of Juniper, aud to a species of Pinus. Cedar, Red. An evergreen tree, the Juniperus Virginiana, seldom growing to a height of more than forty or fifty feet. The tops are considered stimulant, emmen- agogue, diuretic, and diaphoretic. CEDMA. Aneurism. Varix. CED'MATA. K^juara. Pains in the joints, particularly those of the hips. CEDRELE'UM. From «?/«*, the cedar, and ixaioy, oil. The oil of cedar. CEDREN. The liquid portion of juniper oil. CE'DRINUM VFNUM. Cedar wine. A wine prepared by steeping half a pound of bruised cedar berries in six French pints of sweet wine. It is diuretic and sub-astrin- gent. CEDRIRET. A substance, crystallizing in red needles, obtained from the empyreu- matic oil of the tar of beech-wood, by treat- ing it with caustic potassa, and distilling. CEDRI'TES. A vermifuge wine pre- pared from the resin of the cedar, by treat- ing it with sweet wine. CEDROLE. The solid portion of juni- per oil. CEDRUS. From Kedron, a valley where this tree grows. See Pinus Cedrus. Cedrus Americana. The arbor vitae. Cedrus Baccifera. Savine. CELANDINE. See Chelidonium. CELE. K»x», a tumor; a swelling. A tumor caused by the protusion of a soft part, and hence the compound terms, hydrocele, bubonocele, &c. CELERY. The cultivated species of Apium. See Apium Graveolens. CELIA. Cerevisia. CELL. Cella. A cavity or chamber. A minute cavity in the tissues, devoted to purposes of nutrition, growth, development, or secretion. Cells, Bronchial. The air-cells of the lungs, in which the finest ramifications of each lobular bronchial tube terminates. Cell, Calcig'erous. See Calcigerous Cells. Cell, Epidermic or Epithelial. The cells which cover the free membranous surfaces of the body, and which form the epidermis and epithelium. They are de- veloped from germs furnished by the subja- cent membrane. Cell Formation. Cytogeny. The con- tinuous development of cells in tissue forma- tion ; called by Virchow " Proliferation of cells." See Cytoblast. Cell, Germinal. See Cytoblast. Cell-Growth Growth by the agency of cells. Cell Life. The life which is possessed by the separate cells that form the tissues CEM 135 CEN and by which the nutrition of the tissues is thought to be perfected. Cells, Mastoid. The irregular cavities in the substance of the mastoid process of the temporal bone. Cell, Nucleated. See Cytoblast. Cell, Pigment. Cells in various parts of the body, secreting pigment. Pigment cells are mingled with the epidermic cells and are most manifest in the colored races. They are best seen on the inner surface of the choroid of the eye, where they form the pigmentum nigrum Cell Territory. According to Virchow, the district of intercellular substance which is ruled over by the cell that lies in the middle of it, and exercises influence on the neighboring parts. CELLOID. Celloides. Resembling a cell or cellule. CEL/LULAR. Cellula'ris. Composed of cells or cellules. Cellular Membrane. Membrana cellu- losa. Cellular tissue. It contains irregular areolae — not cells, aud is more properly called areolar tissue — between the fibres, as well as serum, fat, and the adipose tissue. Cellular System. The whole of the cellular tissue of the body. Cellular Tissue. The areolar tissue. See Cellular Membrane. CEL/LULE. Cellula; diminutive of cella, a cell. A small cell. CELLULAR TISSUE OF BONES. See Cancelli. CELLULOSE. The fundamental sub- stance of which vegetable tissue is com- posed, left after all products of secretion are dissolved out. Its formula is C 12 H 10 O 10 . It is like starch. CELOTOM'IA. From *»\», a hernia, and Tt^va>, to cut. The operation of ligating for the cure of hernia. CELOTOMUS. A hernia knife. CELTIC NARD. See Valeriana Celtica. CEMENTS The name of substances employed by chemists for uniting things together. It has also been applied to amal- gam, a substance used by some dentists for filling teeth. See Amalgam. CEMENT'UM. One of the substances or parts of a tooth. It covers the fang or root, and is thickest at the extremity of the root and becomes gradually thinner as it ap- proaches the neck of the tooth. Purkinje and Fraenkel mention one case which came under their observation, where it covered the enamel of the teeth of an old man, and Mr. Nasmyth is of opinion that it always envelops the crowns of the teeth. The author, however, has never been able to detect it, except upon the roots of the teeth. Ceraentum also joins together the plates of compound teeth, like those of the elephant, and fills up the cavities and folds in the teeth of ruminants. It is of a cellular and vascular texture. According to Professor Owen, cementum " always closely corresponds in texture with the osseous tissue of the same animal, and wherever it occurs of sufficient thickness, as upon the teeth of the horse, sloth, or rumi- nants, it is also traversed, like bone, by vascular canals. In reptiles and mammals, in which the animal basis of the bones of the skeleton is excavated by minute radi- ated cells, forming with their contents the ' corpuscles of Purkinje,' these are likewise present, of similar size, and form in the ' cement,' and are its chief characteristic as a constituent of the tooth. The hardening material of the cement is partly segregated and combined with the parietes of the radi- ated cells and canals, and is partly contained in aggregated grains in the cells, which are thus rendered opaque." With regard to the manner of the for- mation of the cementum, which is the last to appear of the dental tissues, nothing posi- tive is known. Raschkow thinks it may be produced by the remains of the enamel pulp, but as it cannot be detected on the crowns of the human teeth, we have reason for be- lieving that it is secreted by the periosteum, and the fact that it increases in thickness with age, would seem to render this opinion, by far, more probable. CEMENTATION. A chemical process which consists in surrounding a solid body with the powder of other substances, and ex- posing the whole to a red heat in a closed vessel for a length of time. It is in this way that iron is converted into steel. It is also a process adopted in some of the mints for refining gold. See Gold, Refining of. CEMENTE'RIUM. A crucible. CENEANGEFA. From *iw, empty, and CEX 136 CEP c--a:>, a vessel. Deficiency of blood in the vessels. CENEMBATE'SIS. From «*•?, empty, and tuiicifm. to enter. Paracentesis ; also, the act of probing a cavity. CENEONES. The flanks. CENIG'DAM. Ceniplam; cenigoiam ; cenipolam. The name of an instrument anciently used for opening the head in epi- lepsies. CENO'SIS. From wwc, empty. Gen- eral evacuation ; also, sometimes applied to inanition. CENOT'ICA. Cenoi'kus; from «»*«■/?, evacuation. Morbid or excessive discharges. CENTAU'REA. A genus of plants of the order Composite. Centaurea Behen. Behen album. The white behen. It is said to be tonic. Centaurea Benedic'ta. The blessed or holy thistle. It is tonic, diaphoretic, and emetic. Centaurea Calcitra'pa. The common star-thistle, or star knap-weed. The juice has been used in intermittents and neph- ritic disorders. Centaurea Centau'r-ium. The greater centaury, the root has been used as an aperient and corroborant in alvine fluxes. CENTAURIN. The bitter principle of the European centaurv. CENTAURY. AMERICAN. The Sab- batia angularis. or American centaury. It is tonic, and is used in intermittent and re- mittent fevers. Centaury. European. ErythraBa een- taurium ; a small, annual herbaceous plant, possessing tonic properties analogous to those of gentian. It has been employed in dyspeptic affections and fevers. " CENTIGRADE. Centum, a hundred, and gracilis, a grade. Having a hundred grades or degrees. CENTIGRAMME. From centum, a hun- dred, and yiAu/ua., gramme. Centigramma. The hundredth part of a gramme, which is equal to about the fifth part of a French grain, or gr. 0.1544 troy. CENTILITRE. The hundredth part of a litre, equal to about 2.7053 fluid drachms. CENTIMETRE. Centimetre. The hun- dredth part of a metre, which is about four lines. 3937 English inch. CENTRADIAPH'ANES. Cataract due to opacity of the centre of the crystalline lens. CENTRIPETAL. From centrum, the centre, and peto. to move toward. Approach- ing the centre. In Botany, an inflorescence in which the marginal flowers open first, and the central last. CENTRE OF ATTRACTION. Centre of gravitation. The point to which bodies tend as a consequence of gravitation. CENTRES, NERVOUS. Nervous cen- tres. The organs, as the brain and spinal marrow, from whence the nerves originate. CENTRIFUGAL. Flying from the centre. CENTRIPETAL. Tending towards the centre. CENTROSTALTIC. The action of the vis nervosa in the spinal centre. CEN1RL7M. From kctt«», to prick. The centre ; the middle point or place of any- thing. Centrum Commute. The solar plexus. Centrum Ova'le Ma' jus. The large white medullary mass, surrounded by cor- tical substance, seen in each hemisphere of the brain, when divided to a level with the corpus callosum. Centrum Ovale Minus. The white cen- tral mass, surrounded by a stratum of gray, seen in each hemisphere of the brain, when a horizontal section is made about half an inch above the corpus callosum. CE'PA. From %-trm, a wool card, from the likeness of its roots. The onion. CEPHAELIS IPECACUANHA. The plant from which Ipecacuanha is obtained. CEPHALJi'A. From zxpaxH, the head. The tieshv covering of the skull, also, head- ache. CEPHALHEMATOMA. A bloody tumor under the scalp. CEPHAL-F'MIA. Accumulation of blood in the vessels of the brain. CEPHALAGO'GUS. An instrument for drawing dowu the foetal head. CEPH'ALAGRA. Gout in the head. CEPHALAGRA'PHIA. From «««>.». the head, and y^9x, a description. Ana- tomical description of the head. CEPHALALGIA. From «oc>.». the head, and <*>•>;?. pain. Cephelcea. Head- ache. CEP 137 CER CEPHALALO'GIA. An anatomical treatise on the head. CEPHALAN'THUS OCCIDENTA'- LIS. A shrub of the natural order Rubi- acece, growing all over the United States, near streams and ponds. The bark of the root has been used as an antiperiodic tonic CEPHALAR /r riCA. Cephalic remedies. CEPHALATO'MIA. Anatomy, dis- section or opening of the head. CEPHALE. Ktqax*. The head. CEPHAI/IC. From ^ax», the head. Pertaining to the head. Cephalic Remedies. Medicines, or rem- edies used for the cure of diseases of the head. Cephalic Veins. Vena cephalica. The anterior or outermost vein of the arm is so called, because taking blood from this vein was supposed to afford relief to affections of the head. CEPHALI'TIS. Phrenitis, or inflam- mation of the brain. CEPHALODY'MIA. A class of double monstrosities, in which the heads are united. CEPHALODYNIA. Cephalalgia. Head- ache. CEPH'ALOGENESIS. The doctrine of the formation of the brain. CEPHALOG'RAPHY. A description of heads. CEPH'ALOID. Resembling the head. CEPHALOMA. A medullary or en- cephaloid tumor. CEPHALOM'ETER. CepJielomelrum ; from x«4>*x», the head, and /utrpov, a measure. An instrument for measuring the dimensions of the fcetal head in parturition. CEPHALON'OSUS'. From m****, the head, and voros, a disease. Febris Hungar- ica. A disease which principally affects the head. CEPHALO-PHARYNGtE'US. From wax*, the head, tpttpuyg, the pharynx. Con- strictor pharyngis superior, a muscle of the head and pharynx. CEPHALOPONIA. From w*x», the head, and novoc, pain. Headache. CEPHALOSOMATODYM'IA. A class of double monstrosities in which the union is between the heads and the trunks. CEPHALO-SPINAL. Belonging to the head and spine, as the cephalo-spinal fluid, a fluid found beneath the arachnoid in both the head and spine. CEPH'ALOT. «pak», the head. A peculiar fat found in the brain, containing phosphorus and sulphur. CEPH'ALOTOME. K«ac, horn. A term used as a prefix in composition in the names of muscles. See Cerato-Glossus. Cerato-Glossus. A muscle of the tongue. See Hyoglossus. Cerato-Hyoideus. The stylo-hyoideus muscle. CERATOCE'LE. From tupac, and *»*», tumor. Hernia of the cornea, or protrusion of the membrane of the aqueous humor through an opening in the cornea. CERATONYX'IS. Depression of the crystalline lens by a needle introduced through the cornea. CERATOT'OME. The name of a knife invented by Wenzel, for dividing the trans- parent cornea, in the operation of cataract. CERATOTOMY. K V o f , a horn, and t^- »«v, to cut. Cutting the cornea. CERA / TUM. From cera, wax. A cerate. Ceratum Calamine. Cerate of calamine. Ceratum Canthar / idis. Ceratum lyttce. Cerate of the blistering fly. Ceratum Ceta / cei. Ceratum spermaceti; ceratum album. Spermaceti cerate. Ceratum Coni'i. Hemlock cerate. Ceratum Plum / bi Aceta / tis. Unguen'- turn cerus / sce aceta / tce. Cerate of acetate of lead. Ceratum Plum'bi Carbona'tis. Cerate of carbonate of lead. Ceratum Plum'bi Compos'itum. Cera- tum liihar'gyri aceta'ti compos it urn. Com- pound cerate of lead. Ceratum Resi'n.e. Ceratum resince flavaz; ceratum ciVrinum. Resin cerate. See Basilicon. Ceratum Sabi'n.e. Savine cerate. Ceratum Sapo / nis. Soap cerate. Ceratum Simplex. Simple cerate. It is prepared by melting together eight parts of lard, and four of white wax, and stirring until cool. Mild and emollient to inflamed surfaces. CERATOID. Fromxya?, a horn, and t'tJog, form. Resembling a horn. CERAU / NION. From xtpawo?, thunder, a thunderbolt. A meteoric stone. A stone believed to be formed during thunder, and to be possessed of narcotic and other virtues. It was formerly rubbed on swelled knees, breasts, &c. CERCA'RLE. From *a/>«o?, a tail. A family of infusorial animalcules, having an enlarged body with a slender tail-like ap- pendage, one of the most curious of which is found in salivary calculus. Indeed, M. Mandl asserts that the tartar of the teeth consists of nothing more than a deposit of the skeletons of dead infusoria, agglutinated together by dried mucus, very similar to cer- tain earths, which, according to M. Ehren- berg, are composed almost wholly of fossil infusoria. If the theory of M. Mandl were correct, tartar would be deposited upon all teeth alike. But this is not the fact. Some teeth, as the lower incisors and the outer surfaces of the molars of both jaws, and particularly the upper, are, by far, more liable to have it deposited on them, than any of the other teeth. The infusoria found in salivary cal- culus are doubtless generated in the mucous fluid of the mouth, which is always mixed more or less abundantly with this substance as it is deposited upon the teeth. It is in this way that their presence in the tartar of the teeth is to be accounted for. CERCH'NOS. Cerchnus. From *«/>**, to be hoarse. Wheezing. CERCIS. A sort of pestle. Also, the radius. CERCO'SIS. From *y*er, a tail. A term applied in Pathology to elongation of the clitoris; also to polypus of the uterus. The clitoris. CEREA'LIA. From Ceres, the goddess of harvest. Those species of Graminece, as wheat, corn, barley, and rye, from the seeds of which bread or any nutritious substance is made. CE / REA. From cera, wax. The ceru- men aurium, or wax of the ear. CER 139 CER CEREBELLPTIS. Inflammation of the cerebellum. CEREBELLUM. Diminutive of cere- bruin. The little brain which is that por- tion of the medullary mass of the cavity of the cranium situated in the inferior part of the occipital fossae, below the tentorium. It is divided by a septum into a right and left lobe, and like the other part of the brain is composed of cortical and medullary matter. CEREBRAL. Cerebra'lis; from cere- brum, the brain. Belonging to the brain. Similar to brain. Cerebral Apophysis. The pineal gland. Cerebral Arteries. The arteries of the brain. There are three on each side, namely, the anterior, or artery of the corpus callos- um, the middle, or arteria sylviana, and the posterior, or posterior and inferior. The first two are furnished by the internal ca- rotid, and the other by the vertebral. Cerebral Nerves. The nerves which arise within the cranium. CEREB'RIFORM. Encephaloid. CEREBRrTIS. Inflammation of the cerebrum. CEREBRIC ACID. A pbosphorized acid found in the fatty matters of the brain and nervous system. CER'EBRIN, or CER'EBRINE. Cere- brum, brain. A reddish fatty substance found in the brain. CEREBRFTIS. Inflammation of the brain. CEREBRO-SPINAL. Pertaining to the cerebrum or brain, and spinal cord. Cerebro Spinal Fluid. The fluid found beneath the arachnoid membrane of the brain and within the sheath of the spinal marrow. Cerebro-Spinants. Narcotics have been so called from their effects upon the cerebro- spinal system. CEREBRUM. The brain. A term some- times applied to the whole of the contents of the cranium; at other times only to the upper portion of the brain. " The cerebrum is divided into a right and left hemisphere, vertically separated from each other, and inferiorly into six lobes, two anterior, two middle, and two posterior; situated within the cranium, and surrounded by the dura and pia mater, and tunica arachnoidea. It is composed of a cortical substance, which is external ; and a medullary, which is internal. It has three" distinct "cavities called ven- tricles; two anterior, or lateral, which are divided from each other by the septum luci- dum, and in each of which is the choroid plexus, formed of bloodvessels; the third ventricle is a space between the thalami nervorum opticorum. The principal prom- inences of the brain are the corpus callosumj a medullary eminence, conspicuous upon laying aside the hemispheres of the brain j the corpora striata, two striated protuber- ances, one in the anterior part of each lateral ventricle; the thalami nervorum opticorum, two whitish eminences behind the former," from ''which the optic nerves" were said to originate; "the corpora quadrigemina, four medullary projections, called by the ancients nates and testes; a little cerebral tubercle lying upon the nates, called the pineal gland; and, lastly, the crura cerebri, two medullary columns, which proceed from the basis of the brain to the medulla oblongata. The cerebral arteries are branches of the carotid and vertebral arteries. The veins terminate in sinuses, which return their blood into the internal jugulars. The use of the brain is to give off nine pairs of nerves, and the spinal marrow, from which thirty-one more pairs proceed, through whose means the various senses are per- formed, and muscular motiou excited." The brain "is also considered as the organ of the intellectual functions." " Vauquelin's analysis of the brain is in 100 parts: 80 water, 4.53 white fatty mat- ter, 0.7 reddish fatty matter, 7 albumen, 1.12 osmazome, 1.5 phosphorus, 5.15 acids, salts, and sulphur."* Cerebrum Elongatum. Medulla oblonga- ta, and medulla spinalis. CERELiE'UM. From *»/>«?, wax, and t\aiov, oil. Cerate composed of wax and oil. Also, oil of tar. CEREOLUS. A bougie made of wax. CE / REUS. From cera, wax. Having a waxy appearance or texture. CERIA. From cereus, soft, pliant. The flat worms found in the intestines. CERIC ACID. Cera, wax. An acid produced by the fixed alkalies on wax. * Hooper's Med. Diet. CEK 140 CET CERIX. Cerotic acid. Beeswax con- sists of this acid united with miricin. CERIOX. From x*puv, a honeycomb. A species of porrigo ; also, a honeycombed ulcerative affection of the head. CE'RITE. A silicious oxide of cerium. CE'RIUM. A white brittle metal, diffi- cult of fusion, but volatile when intensely heated, found in a Swedish mineral called cerite. CER'XUOUS. In Botany, drooping: hanging down. CE'ROMA. From wpec, wax. A term applied in Pathology to a fatty, waxy, or lardaceous tumor of the brain. CEROPIS'SUS. From »y*e, wax, and mrra, pitch. A plaster composed of pitch and wax. CEROPL AS'TIC. From uqos, wax, and 7rkao-ru» re^vx, the art of the modeller or carver. The art of modelling in wax. This art is of great antiquity, and to the dental surgeon who is anxious to preserve a trans- fer of the various cases of irregularity of the teeth which may come under his notice, is particularly valuable. CEROS'SIC ACID. An acid obtained from sugar-cane wax. CEROTUM. Cerate. CER'ULIN. Indigo dissolved in sul- phuric acid. CERU'MEN. From cera, wax. See Cerumen Aurium. Cerumen Atrium. The unctuous secre- tion, which is of a waxy consistence, found in the meatus auditorius externus. CERU'MINOUS. Relating to, or hav- ing the properties of, cerumen. Ceruminous Glands. The follicular glands, situated beneath the membrane lin- ing the meatus, which secrete the cerumen. CERUSE 7 . Carbonate of lead ; white lead. CERVICAL. Ce? % vicali^; from cervix, the neck. Belonging to the neck ; also, every- thing that concerns it. Cervical Arteries. The cervical ar- teries are three in number, namely : the ascending, anterior, or superficial, derived from the inferior thyroid; the transverse, or cercico-srapulare, given off from the axil- lary artery : ami the posterior, which is a branch of the subclavian. Cervical Ganglions. The three gan- glions of the great sympathetic nerve. The first, is situated opposite the second cervical vertebra: the second, or middle cervical ganglion, \s opposite to the interval between the fifth and sixth cervical vertebra?: and the third, which is sometimes called the first thoracic, is situated between the trans- verse process of the last cervical vertebra and the head of the first rib. Cervical Ligaments. The cervical liga- ments are two in number. The first is call- ed the anterior, and extends from the basilar process of the occipital bone to the anterior part of the first cervical vertebra : and the second is denominated the posterior, and extends from the outer occipital protuber- ance to the spinous process of the last cervi- cal vertebra. Cervical Xerves. The eight pairs of nerves first given off from the spinal marrow. Cervical Plexts. The network of nerves formed by the first three cervical nerves. Cervical Vein's. These veinshave nearly • the same distribution as the cervical arteries. Cervical Vertebra. The seven upper- ■ most vertebrae of the spinal column. CERVICA'LIS DESCEXD'EXS. The upper continuation of the sacro-lumbalis. CERVICA'RIA. From cervix, the neck. The Campanula trachelium, or herb throat- wort, so called because it was supposed to be beneficial in affections of the throat and neck. CERVICO-FA'CIAL NERVE. A branch of the facial nerve, distributed to the neck and face. CERVIX. Collum. The neck. Ap- plied also to organs or parts, as the cervix uteri, neck of the uterus, kc CER'VUS. A genus of ruminantia. Cervcs Ei/aphus. The stag, from the horns and hoofs of which hartshorn shavings are obtained. CESTOI'DEAXS. From ™*m. a gir- dle, and uJcs. likeness : ribbon-like. The order of Sterelmintha. or parenchymatous entozoa. to which tape-worm belongs. CESTROX. Betonica officinalis. Betony. CETA'CEUM. From »toc, a whale. A white, insipid, unctuous substance, obtained from the brain of the spermaceti and other varieties of whale. CETIC ACID. The result of the action of alkalies upon cetine. CHA 141 CHA CETINE. Pure spermaceti. CETRA'RIA ISLAND'ICA. Lichen Is- landicus. Iceland moss. It is demulcent, nutritive, and tonic. The dose is 3j to ^iv, being first steeped in water holding in solu- tion some carbonate of potassa to extract the bitter, and then boiled in milk. CETRARIN. The bitter principle of Ice- land moss. CETYL. A hypothetical radical of a series of compounds obtained from sperma- ceti. Its formula is C32H33. CEVADIC ACID. An acid resulting from the action of potash on the oil of the Veratrum sabadilla. CE VADII/LA. See Veratrum Sabadilla. CEYLANITE. The name of a mineral of an indigo blue color. CEYLON MOSS. A cryptogamic plant of the order Algce, which has been intro- duced in Europe as an article of food. CHABAZITE. A crystallized silicate, of a faint rose color. CHABERT'S OIL. Three parts oil of turpentine and one of Dippel's oil, distilled. CH^EROPHYL'LUM. A genus of plants of the order Umbelliferce. Celerophyllum Odoratum. Sweet cic- ely. Chjerophyllum Sylvestre. Bastard hemlock. CHAFING. The red excoriations which occur in consequence of the friction of parts, or between the folds of the skin. Washing in cold water and dusting with hair-powder is the best preventive. CHAIN SAW. A saw made of a watch spring, having serratures on one side. One end is attached to a handle and the other to a hook. It is used in the operation for the removal of the lower jaw. CHALA / SIS. From ^aZaw, to relax. Relaxation. CHALASMUS. XaXaafiog. Relaxation. CHALAS'TICUS. From x aKae *, I re- lax. A relaxing medicine. CHALA / ZA. In Botany, a vascular disk at the base of the nucleus of an ovule. The cicatricula of the egg. With the ovol- ogists, the chalazoz or poles are the spirally twisted bands of the dense internal layer of albumen in the egg, adhering to the yolk and the extremities of the egg. CHALAZIUM. From x a ^ a , a hail- stone. A species of hordeolum or movable tumor on the margin of the eyelid, common- ly called a stye. CHALCAN'THUM. From *«**<*, brass, and a»r3-oc, a flower. Red calcined vitriol, or the flowers of brass. CHALCEDONY. A mineral, so called from having been found by the ancients in Chalcedon, in Asia Minor, supposed to be pure silica with a little water. CHALCITES. Colcothar, or the red oxide of iron. CHALCOFDEUM OS. The cuneiform bone of the foot. CHALK. A calcareous earth of a white color. Carbonate of lime. See Creta. Chalk, Black. Drawing slate, used in crayon drawing. Chalk, Red. A clay, colored with oxide of iron. Chalk-Stone. Earthy concretions found in the hands and feet of persons affected with gout. CHALYBEATE. Chalybeatus ; from chalybs, iron or steel. Of, or belonging to, iron. Any medicine into which iron enters, as chalybeate mixture, pills, waters, &c. Chalybeate Waters. Any mineral water containing iron. CHALYBS. From Chalybes, a people of Pontus, who dug iron out of the earth. Acies, steel, or the protocarburet of iron. In its medicinal virtues, steel does not differ from iron. Chalybs Rubigo. Subcarbonate of iron. Chalybs Tartarizatus. Ferrum tar- tarizatum. Tartrate of iron and potash. CHAM^EME'LUM. See Anthemis Nob- ilis. CHAMBAR. Magnesia. CHAMBER. Camera ; a term employed in Anatomy, in speaking of the eye, in which there are two chambers, an anterior and a posterior. The space before the iris is termed the anterior chamber, and that behind it the posterior. CHAMELEON MINERAL. A com- pound of manganesic acid and potash, pre- senting a variety of tints when dissolved in water. CHAMOMILE FLOWERS. The flower heads of the Anthemis nobilis. They pos- sess mild tonic properties, and in large CHA 142 CHE quantities act as an emetic. They are also valuable as a febrifuge. Chamomile Drops. Alcoholic spirits, impregnated with essential oil of chamo- mile. Chamomile, German. See Matricaria Chamomilla. Chamomile, Wild. See Anthemis Cot- ula. CHAMOMIL/LA. Chamomile. CHAX / CRE. From napunes, cancer. A sore resulting from the direct application of the venereal poison to any part of the body. It is almost always seated, in men, on the penis. The term is never applied to sores occurring in other parts of the body from ab- sorption or general contamination of the sys- tem. The French apply the word chancre to cancerous ulcers, and malignant aphthae of children. CHAPMAN'S MIXTURE. Copaiva Bal., Sp. yEtheris Nitrici, aa ^ss 5 Pulv. Acacia, £ij ; Saccharum, 3j ; Destill. aquae, 3iv 5 Sp. Lavendulae Corapositus, £ij. Misce. Dose Jss, three times a day. A remedy much used in gonorrhoea. CHARACTER. Xapa*T»p, a mark or im- pression. In General Medicine the term is used synonymously with stamp or appear- ance. Thus, " a disease is of unfavorable character," or " has a bilious character," &c. In Dental Surgery it is applied to the ap- pearances which the teeth present in their physiological and pathological conditions. It has, also, the same signification when ap- plied to the gums. CHARACTERISTICS OF THE TEETH. See Teeth, Characteristics of. CHARANTIA. Momordica elaterium. CHARCOAL. Carbo. An impure form of carbon, obtained by burning wood with imperfect access of air, or exposing it to a strong heat in a distilling apparatus com- posed of cylinders of iron, so constructed that the volatile product may be collected. Among this there will be a certain propor- tion of tar and pyroligneous acid, or im- pure vinegar. This, when it is wished to procure a pure article, should be suffered to escape, while the reabsorption of the crude vapor should be prevented, by cutting off the communication between the interior cylinders and the apparatus used for con- densing the pyroligneous acid, after the removal of the fire from the furnace. The charcoal obtained for common purpo- ses, as fuel, &c, is made from wood, piled up in the shape of a pyramid, covered with earth, with a few air-holes, but which, as the pile becomes well lighted, are closed. In this way the wood is deprived of its vola- tile parts and converted into a black, brittle, porous substance, called charcoal, but re- taining the shape of the vegetable from which it is obtained. Charcoal, Animal. The carbonaceous residue of bones or of blood, usually the former. Animal Charcoal, bone charcoal, and ivory black, are names applied to bones calcined or converted into charcoal in a close vessel. It is also prepared by calcin- ing dried blood, horns, hoofs, pieces of hides, &c, in contact with carbonate of potash, and washing the calcined mass with water. It is used to decolorize vegetable principles, such as gallic acid, quinia, veratria, &c. CHAS / ME. From X aiice j t0 gape. Yawn- ing ; gaping. CHATTERING OF THE TEETH. Dentium crepitus ; Odontosynerismus ; cla- quenient. A phenomenon resulting from tremor of the muscles of the inferior max- illa, and commonly dependent on rigor arising from cold or mental emotion. CHAUDEPISSE. Gonorrhoea. CHEEK. The side of the face, extend- ing from the lower eyelid to the base of the jaw, and from the nose and commissure of the lips to the ear. Cheek-Bone . Malar bone. CHEESE. Ca'seus. The coaguluni of milk compressed into a solid mass. CHEILITIS, or CHILI'TIS. From £«xcc, a lip. Inflammation of the lips. CHEILOC'ACE. From *■*«, a lip, and xgxc?, evil. Swelling and induration of the lip, but without suppuration. CHEILOCARCIXO'MA. From ^«xe?, a lip, and KafK^oi/xa^ cancer. Cancer of the lip. CHEILON'CUS. A swelling of the lip. CHEILOPLAS'TICE. GkOopkuty; from X UKc tj a lip? and "rKao-Ttxo;. forming. The operation for an artificial lip. CHEILOS. The lip. CHEIRIA'TER. From X "h the hand, and tarpzc^ a physician. A surgeon. CHE 143 CHE CHEIRIS'MA. From fcwpifo^ai, to labor with the hand. Any manual operation; the act of touching or handling. CHEIRIXIS. From xuptgo/utai, to labor with the hand. Surgery in all its branches. CHEIRONOM'IA. From xwi**", l exercise with the hands. An exercise con- sisting in using the hands, as in the exer- cise with the dumb-bells. CHE / LA. X*w, forceps; from x i0c t to take. A bifurcated probe used for the ex- traction of nasal polypi. Applied also to a fissure in the feet and to the claws of a crab. CHE'LiE. Chaps or cracks in the skin. CHELIDON'IUM. Bryony. Also a genus of plants of the order Ranunculacece. Chelidonium Ma'jus. Tetter-wort, and the common celandine. The fresh juice has been used to destroy warts and films on the eyes. Chelidonium Minus. Celandine; a pa- paveraceous plant, yielding an acrid yellow juice, often applied to warts and corns. The herb and root are purgative, diuretic, dia- phoretic, and expectorant. CHE'LOID. Cheloi'des. From *&»?, a tortoise, and e/Jo$, a form. Applied to a skin disease. CHELO'NE. XtKmK A tortoise. A term applied in Surgery to an instrument for ex- tending a limb, because the slowness of its motion resembles that of a tortoise. Also, a genus of plants. CHELO'NION. From x* XuV "i a tortoise, from its resemblance to the shell of a tor- toise. A hump or gibbosity of the back. CHELSEA PENSIONER. A nostrum for rheumatism, composed of one drachm of guaiac, two drachms of rhubarb, one ounce of cream of tartar, one ounce of flowers of sulphur, one nutmeg, and a pound of clarified honey. CHELYS. Xtxo (j the chest. The thorax. CHELYS'CION. From £•**?, the chest. A dry hacking cough, attended with sore- ness of the muscles of the chest. CHEMFCAL. Of, or belonging to, chem- istry. Chemical Affinity, or Attraction. The force which draws dissimilar particles of matter together, causing them to com- bine and form new bodies endowed with new properties. It acts only at insensible distances. Chemical Formula. A symbolic expres- sion of a chemical compound; but in the composition of chemical formulae, algebraic representations are employed. Chemical Nomenclature. The tech- nical terms appropriated to chemistry. Chemical Symbols. The abbreviations used to designate the elements and radicals. See Equivalents, Chemical. CHEMICO-HISTOLOGY. The doctrine of the organic chemistry and morphology of tissue. CHEMIST. One versed in chemistry. CHEMISTRY. A word supposed to be derived from the Arabic, chema, a secret. It is defined by Brande, to be "a depart- ment of science the objects of which are to investigate the nature and properties of the elements of matter, and their mutual actions and combinations; to ascertain the propor- tions in which they unite, and the modes of separating them when united ; and to inquire into the laws and powers which preside over and affect these agents." CHEMO / SIS. From x* tva> : to gape, or from £^0?, a humor. Inflammation of the conjunctiva of the eye, characterized by dis- tension of its vessels and the formation of an elevated ring around the cornea. CHENOPO'DIUM. A genus of plants of the order Chenopodiaceoz. Chenopodium Ambrosioi'des. Mexico tea; Spanish tea. This species of cheno- podium is said to have been used with ad- vantage in chorea. Chenopodium Anthelmin'ticum. Che- nopodium. Wormseed; Jerusalem oak; stinkweed. The fruit of this plant is cele- brated for its anthelmintic properties. Dose of the oil for children gtt. iij to vj ; for adults gtt. vj to xx. Chenopodium Bonus Henri / cus. The systematic name of the English mercury. Chenopodium Botrys. The systematic name of the Jerusalem oak. This species possesses anthelmintic virtues. Chenopodium Vulva'ria. The stinking orach, sometimes employed as an emmen- agogue. CHE'OPLASTIC BASE. A plate made of cheoplastic metal, adapted to a portion of the alveolar ridge deprived of natural teeth, and to be supplied with an artificial substi- CHI 144 CHI tute. Dr. A. A. Blandy is the patentee of this method. See Harris's Dental Surgery. Cheoplastic Metal. An alloy composed of tin, silver, and bismuth, with a small trace of antimony; and first brought to the notice of the dental profession by Dr. A. A. Blandy in 1857. Cheoplastic Process. The manner of mounting artificial teeth upon a plate com- posed of the alloy, known as cheoplastic metal. For process, see Harris's Dental Surgery. Cheoplastic Teeth. Artificial teeth made expressly for cheoplastic work. They are not provided with platina pins, but have holes or dovetail grooves into which the metal runs, retaining them securely to the base. CHERRY. The fruit of the Prunus cerasus. CHERRY-LAUREL. See Prunus Lauro- Cerasus. CHESIS. A frequent desire to evacuate the bowels. CHESTNUT. See ^sculus and Fagus. Chestnut, Horse. See iEsculus Hip- pocastanum. CHEVESTRE. A double-headed roller, applied round the head, the middle support- ing the chin, in cases of fracture or luxation of the lower jaw. It has received the names of simple, double, and oblique, according to the manner in which it is applied. This bandage, however, has, to some extent, been superseded by one contrived by Mr. Fox. See Fox's Bandage. CHEVAUCHEMENT. A French word signifying, in General Surgery, the riding of the extremities of a fractured bone on each other ; and in Dental Surgery, defect- ive arrangement of the teeth, consisting in the gradual displacement of a cuspid or incisor, which assumes a position in front of the dental arch and obliquely across one of the adjoining teeth. See Irregularity of the Teeth. CHIA. Chia terra; from Chios, the island where it was originally found. A variety of white earth, formerly used for burns. CHIADUS. Furunculus. CHIAS / MA. From xtafa, to make the letter X ; chiasm. The crossing of the fibres of the optic nerve; also the crucial union of parts. CHIASTOLITE. A mineral having some resemblance to the steatite. CHIASTOS. A crucial bandage, so called because it resembles the letter X. CHIASTER. See Kiaster. CHICKEN-POX. See Varicella. CHICOT. Stump (of a tooth). CHICOTIN. The bitter powder or juice of colocynth. CHIGRE. Chiggre, chegre, chique. From the Spanish, chiquiio, small. A small insect of the Southern States and the West Indies, which penetrates the skin, causing slight inflammation and intolerable itching. CHIL / BLAIN. Per'nio; bugan'tia; ery- the'ma pernio; from chill, cold, and blain, a pustule. Erythematous inflammation of the feet, hands, or other part of the body, resulting from exposure to cold. Chilblains are prevented by accustoming the parts to exposure; and are treated by stimulant, terebinthinate, and balsamic washes, oint- ments, and liniments. CHILD-BED FEVER. Puerperal fever. CHILDBIRTH. Parturition. CHILO. From x uKo h a ^P- -A- word used as a prefix. CHI'LON. CheVlon; cheiWtis, from ^w^of, a lip. Inflammation and swelling of the lips. CHILO'MA. A term applied in Zoology to the upper lip or muzzle of a quadruped, when it is tumid and continued without in- terruption from the nostril. CHIMAPHIL'A. A genus of plants of the order Pyrolaceas. Chimaphila Umbel'lata. Chimaphila, U. S. Pipsissewa ; winter green ; ground- holly. The fresh leaves have a fragrant odor aud a bitterish, astringent, and aroma- tic taste. They are diuretic, astringent, and tonic. Dose, Oj of decoction in 24 hours. Chimaphila Macula'ta. Poison pip- sissewa. Its properties are supposed to be identical with the preceding. CHI'MIA. Chemistry. CHIMIA'TER. From xvpta, chemistry, and ia-vpot, a physician. One who applies the science of chemistry to medical pur- poses. CHIMNEY-SWEEPERS' CANCER. Cancer of the scrotum. CHI 145 CHL CHIMOGENE. Cold generator. A liquid produced by Dr. Vanderweyde in experi- menting with the highly volatile and gaseous products of distillation, which he proposes to use as an improved substitute for rhigo- lene, ether, &c, in producing local anaesthe- sia. It boils at any desired degree of temperature, say at 60°, 50°, 40°, or even at 30 u , F., causing by its evaporation the most intense cold. CHFNA GLAZE. A blue frit composed often parts glass, two parts lead, and three of blue calx. China Nova. A variety of red bark ; the produce of Cinchona oblongi folia. China, Pride of. Melia azedarac. China Root. The root of the Smilax China. It has the same properties as Sar- saparilla. CHINAROTH. A red substance, de- posited from cinchona tannin, on the ab- sorption of oxygen. CHINCHINA. See Cinchona. CHINCOUGH. Pertussis. CHININUM. See Quinia. CHINIOIDINE. Chinoidine; chinoi- dina ; from China, cinchona. A substance separated from cinchona, supposed to be an alkaloid, and to consist of a mixture of quinia, cinchonia, and a peculiar resinous matter. It is really impure quinia. CHIRO'NIA. A genus of plants of the order Gentianece. Chironia Angula'ris. The American centaury. It has the tonic properties of simple bitters, and is used with advantage in autumnal intermittent and remittent fevers, in the form of decoction, extract, and tincture. Chironia Centau'rium. Centau'rium ; Erythraia centaurium. Common European centaury, which has tonic properties similar to those of gentian, and has been used in fever and dyspeptic affections. CHIRONI'UM. A malignant ulcer, with callous edges, difficult to cure. CHIROPODIST. From X *'h the hand, and Trow?, the foot. One whose profession is to remove corns and bunyons from the feet CHIROTHE'CA. From %up, the hand, and $•»*«, a sheath. A bandage, applied in spiral turns, so as to envelop the hand and fingers. CHIRUR'GEON. A surgeon. CHIRUR'GIA. From x«h th e hand, and tpyov, a work. Surgery. CHIRURGIEN DENTISTE. Surgeon- dentist. CHLFAROS. Slight fevers, in which the heat is not great. CHLIAS / MA. A tepid and moist fer- mentation. CHLOAS / MA. Chloasma pseudo-por- rigo. Liver spots. Blotches on the skin, of irregular shape and yellowish-brown hue. CHLORACE'TIC ACID. A modifica- tion of acetic acid, in which three atoms of chlorine take the place of three atoms of hydrogen. Formula C 4 C1 3 3 ,H0. CHLORACETYL. A modification of acetyl. C 4 C1 3 . CHLORAL. A new compound of chlo- rine, carbon, and oxygen. It is an oxy- hydrate of chloracetyl." H0(C 4 C1 3 ),0. CHLORAN'THUS. A genus of plants of the order Chloranthaceo3 ; allied to Pi- peracece. It is a most powerful stimulating agent. CHLORAS'MA. Chlorosis. CHLORATE. A compound of chloric acid with a salifiable base. Chlorate of Potassa. Potassae chloras ; which see. CHLORIC ETHER. A compound ob- tained by passing hydrochloric acid gas into alcohol to saturation and distilling the pro- duct. CHLORIDE. A compound of chlorine with different bodies. Chloride of Gold. See Gold. Chloride of Lime. See Lime, Chloride of. Chloride of Zinc. See Zinc. CHLORINE. From frmpe, green. A yellowish-green colored gas, of a disagreea- ble taste and strong, suffocating odor, ex- citing great irritation and spasm of the glottis when inhaled, even in a diluted state 5 incapable of supporting combustion, and soluble in water. It is obtained by the action of hydrochloric acid on peroxide of manganese. Chlorine Water. Aqua chlorinii. A solution of chlorine gas in water. CHLORFODATE. A combination of chloriodic acid with a base. CHLOROCARBON'IC. An acid ob- tained from chlorine and carbon. 10 CHL 146 CHO CHLORIO'DIC ACID. A compound of chlorine and iodine. CHLORITE. An earthy mineral of va- rious tints of green. CHLORO. A term formed from the Greek, and used to indicate a clear, lively green color. CHLO'RODYNE. A secret prepara- tion, proposed, in 1848, by Dr. Browne of India, and said by him to consist of perchlo- ric acid with a new alkaloid. It has been given as an anodyne, chiefly. CRLO'ROFORM. Terchloride of formyl; so called because it is a combination of chlo- rine with formyl, the basis of formic acid. A dense, colorless liquid, possessing a fra- grant, fruit-like, ethereal odor, and a sac- charine taste. It is obtained by distilling a mixture of chloride of lime and alcohol. Taken internally, it acts as a sedative nar- cotic. For inhalation, the dose is a fluid drachm, equivalent to 220 drops or more. It consists of two atoms of carbon, one of hydrogen, and three of chlorine. Its formula is therefore (C 2 H)CL 3 , or FoCl 3 , C 2 H, being the expression for formyl, other- wise written Fo. Its specific gravity is 1.480, and the density of its vapor is 4.2. It is uninflammable, and boils at 141°. It is recommended in asthma, and when taken into the stomach, produces a grateful and soothing etfect. Professor Simpson, of Edinburgh, dis- covered that the vapor of chloroform, when inhaled, acts as a powerful anaesthetic agent, producing complete insensibility in from thirty seconds to three or four minutes, and during the last three or four years it has been extensively used, both in Europe and America, not only for the purpose of pro- ducing insensibility in surgical operations, but also to prevent the pain attending par- turition. Its use, however, has, in a num- ber of instances, been attended with fatal effects. Chloroform, Tincture of. Ether, chlo- ric. CHLOROFORMIZA'TION. A term applied to the aggregate of the symptoms produced by the administration of chloro- form. CHLOROM'ETER. An instrument for estimating the quantity of chlorine in com- bination with water, or a base. CHLORO'MA. From xyupte, green, and oma. A peculiar form of tumor containing a yellow-green substance, which takes the place, at times, of muscles and periosteum. CHLOROPH^ITE. A mineral which when recently broken is green, but after- wards becomes black. CHLOROPHANE. A species of fluor spar, transmitting a beautiful pale green light when heated. CHLOROPHYLL. The green matter of the leaves of plants. CHLOROSIS. From **»/>o?, green. The green sickness. A disease affecting young females, particularly before menstruation, or those laboring under a suppression of menses, characterized by languor, palpita- tion of the heart, pain in the loins, fatigue, a pale, greenish hue of the face, a small, quick pulse, and sometimes with cedema- tous swellings of the feet. CHLORO T'IC. Affected with, or per- taining to, chlorosis. CHLORUM. Chlorine. CHLO'RURET. Chloride. CHOCOLATE. A paste prepared from the cacao-nut, with sugar. It is a nourish- ing article of diet. CHOKE-DAMP. A term applied by miners to irrespirable gas, or vapors con- taining carbonic acid. CHOL.E'MIA. From x > y h bile, and aijua, blood. A morbid state in which bile is found in the blood. Jaundice. CHOL^EUS. Biliary. CHO'LAGOGUE. "cholagogus ; from X 0K », bile, and *><*, I expel. Purgative medicines which excite biliary secretions. CHOLE. Cholos. Bile. CHO / LEATE. A combination of cho- leic acid with a base. CHOLEC'CHYSIS. Effusion of bile. CHOLECYSTITIS. Inflammation of the gall-bladder. CHOLED'OCHUS. From ***», bile, and /s^off, containing or receiving. Receiv- ing or containing bile. Choledochus Ductus. Ductus com- munis choledochus. The duct which con- veys the bile from the liver to the duode- num. CHOLEDOCrTIS. Inflammation of the choledoch duct. CHOLEDOG'RAPHY. Clwledogm'- CHO 147 CHO phia, from x oXn i D ^ e > an( ^ yp a< P ilv , to describe. A description of that which relates to the bile. CHOLEDOI/OGY. Choledologia, from ^oJi», bile, and ao^o?, a discourse. A trea- tise on the bile. CHOLE'IC ACID. Taurocholic acid. Bilin. According to Liebig, that part of bile soluble in alcohol, and containing the bilin. CHOLELITHUS. From *ox», and h&oc, a stone. Biliary calculi. CHOLEME'SIA. Vomiting of bile. CHOLEPYR/RHIN. The brownish- yellow coloring matter of the bile. CHOLER. Bile. Anger was supposed to proceed from a superabundance of bile, hence the application of the term choler to anger. CHOI/ERA. Cholera morbus; from ^ox«, and pia>, I flow. Purging and vomit- ing, generally of bile, with gripin-gs and spasms of the abdominal muscles, and often in the legs and arms. In the Asiatic chol- era, or cholera asphyxia, the discharges re- semble rice-water and the disease is gener- ally of a more malignant and fatal charac- ter. Its pathology is but little understood. Cholera Infantum. Cholera of Infants. CHOI/ERIC. Choleri'cus. Belonging to cholera morbus or to the bile. CHOLERINE. A slight diarrhoea dur- ing the prevalence of cholera ; a premoni- tory symptom of the disease. CHOL/EROID. Resembling cholera. CHOLEROMA'NIA. Dread of cholera so great that the patient believes himself to be affected with it. CHOLEROPHO'NE. The peculiar voice of a patient affected with cholera. CHOLEROPROSO'PON. The facial expression of one affected with cholera. CHOLESTEATOMA. Xu», bile, and steatoma. A fatty tumor, laminated and pearly, and composed principally of crystals of cholesterine. CHOLES'TERIC ACID. A substance obtained by heating cholesterine with nitric acid. . CHOLESTERINE. Cholesterina ; from X oKi) i bile? and vnp-os, solid, or bile. Dis- eases of the liver and spleen generally. CHONDRAL'GIA. Pain of the carti- lages. CHONDRIN. A gelatinous substance obtained from the permanent cartilages by boiling. CHONDRITIS. From fcovJ/w, cartilage, and itis, a termination signifying inflam- mation. Inflammation of cartilage. CHONDROGENES'IA. Chondrogen'- esis, from %ovtyos, cartilage, and ytvtrte, form- ation. Formation of cartilage ; conversion of parts into cartilage. CHONDROGLOS'SUS. From ^o»J>o f , a cartilage, and yhosw*, the tongue. A fas- ciculus of fleshy fibres, extending from the lesser cornu of the o& hyoides to the tongue, forming part of the hyoglossus muscle. CHONDROG'RAPHY. A description of the cartilages. CHONDROID. Chondro'ides; from vsvJ/JOf, cartilage, and ttfoc, resemblance. Cartilaginous. Resembling cartilage. CHONDROL'OGY. Chondrolog' ia ; from x ov fy° s ) cartilage, and *o>o;, a discourse. A treatise on cartilages. CHO 148 CHE CHOXDRO'MA. A cartilaginous growth in bones. CHOXDRO-PHARYXGE'US. From XwJjpof, cartilage, and 9 P>£. the pharynx. The fibres of the muscular coat of the phar- ynx, arising from the lesser cornu of the os hyoides, which form part of the constrictor medius. CHOXDROS. Xcr/>«, a region. Any void space, as the orbit of the eye, &c. CHOR'BA. From *«**, a string. The word has several significations. An inter- stice, a tendon, an assemblage bf fibres : and it is sometimes applied to a painful ten- sion of the penis. Chorda Dorsa'lis. The rudiment of the vertebral column in the foetus. Chorda Mag'xa. The tendo-Achillis. Chorda Texdix'ea. A cord-like tendin- ous substance connecting the cameo? co- hiiiiiice of the ventricles of the heart to the auricular valves. Chorda Tym'paxi. A branch of the seventh pair of nerves is so called because it crosses the tympanum of the ear, like a string across the bottom of a drum. Chorda Voca / les. Vocal chords. The thyro-arytenoid ligaments of the larvnx, or of the inferior ligaments of the glottis. CHORDAP'SUS. Constriction or twist- ing of the intestines. CHORDEE'. A French word, applied in Pathology to a painful spasmodic contrac- tion of the penis, attending gonorrhoea. CHORE / A. Xtpua, from W't, a chorus, which formerly accompanied dancing. A disease called St. Yitus's dance, character- ized by convulsive motions of the limbs, re- sembling the movements of a person dan- cing. CHO'RIOX. Xsptcr, skin, from X a f a j a receptacle. The second membrane of the foetus. CHORIOXI'TIS. Induration of the cel- lular tissue. CHORIUM. From *«/*», skin. The cutis vera, or innermost layer of the skin. CHOROID. Choroi'deus ; from gap*, the chorion, and «<», I anoint. Inunction. The anointing of any part. CHRISTE'RIOX. An ointment or lin- iment. CHROA. Chroma. Color in general. The surface of the body; the skin. CHRO / MAS. A chromate, or salt formed by the union of chromic acid with salifiable bases. CHROMATICS. From ^ti, color. That part of optics which treats of the colors of light and natural objects. CHROMIC ACID. Obtained by mixing bichromate of potash with pure concentrated sulphuric acid, in the form of brilliant pris- matic crystals. It is used as an escharotic for allaying extreme sensibility of dentine. For obtunding the sensibility of dentine it is said that its application is not attended with pain like chloride of zinc and other escharotics, nor with any risk to the nerve, and that its effect is almost instantaneous. It is allowed to remain in the cavitv of a tooth from two to five minutes. CHROMIDRO'SIS. Abnormal colora- tion of the sweat. CHRO'MILM. From £&*,***, color, be- cause it gives color to its combinations. A whitish, brittle, and very infusible metal, extracted from the native chromate of lead CHE 149 CHY or iron. By heating it with nitre it is con- verted into chromic acid. CHROMOGEN. Vegetable coloring matter acted upon by acids or alkalies, pro- ducing yellow or green tints. CHROMOP'SIA. Chrup'sia; from Xpu/ua, color, and o-^ts, vision. Colored vision. CHRON / IC. Chronicus; from xpovoc, time. A term applied to diseases of long continuance, and for the most part, without fever. CHRONO-THERMAL. A fauciful no- tion that medicines are electrical in their action, erected, as usual, into a "system." CHRUP / SIA. From xP oa , color, and e4'f» sight. A disease of the eyes, or a state of vision, in which a colored impression is made on the retina. CHRYSALIS. From a/wroc, gold. The second or inactive state of a metabolion or changeable insect, embracing the period when it is inclosed in a transparent cover- ing, which sometimes reflects a metallic lus- tre, and hence the appellation. CHRYSANTHEMUM. A genus of plants of the order Compositce. They have been naturalized in this country. Chrysanthemum Leucan'themum. Ox- eye daisy. Maudlin wort. Chrysanthemum Parthe'nium. Matri- caria parthenium. Motherwort. CHRYSFTIS. From xpvroc, gold. Lith- arge. CHRYSOBALANUS. From ^»», a description. A description of the chyle, and of the parts which elaborate it. CHYLOPOIET'IC. Chylopoieti'cus ; from x vKo? > chyle, an( ^ 5ro/sa > I make. Any- thing connected with the formation of chyle, as the chylopoietic viscera, vessels, &c. CHYLOPOINE. A term used by CI. Bernard to express the active principle of the pancreatic juice. CHYLOUS. The process by which food is changed into chyle. Chylification, or the formation of chyle. CHYLOSTAG'MA. Distillation or ex- pression of juice from solids. CHYLIKRIA. From x u >>°<, chyle, and oupov, urine. A discharge of milky urine, without any apparent lesion of the urinary organs. CHYLUS. Xt/xoc. Chyle. CHYME. Chymus ; from x u V c, juice. A homogeneous mass, formed by the food in the stomach, and from which, after it passes into the intestines, the chyle is separated It is formed by the food in its first great change in the process of digestion. CHYMIA. XvfAta. Chemistry. CHYMIA / TER. A chemical physician. C1C 150 CIL CHYMIATRFA. The art of curing dis- eases by chemical remedies. CHYMIFICA'TION. Chimifica'tio ; from xvjuc?, juice, and facere, to make. The conversion of food into chyme. CHYM'ISTRY. Chemistry. CHYTLEN, RADIX. A cylindrical root, of a bitterish taste, brought from China. The Chinese hold it in high estimation for its stomachic virtues. CI'ATOME. An instrument for dividing pseudo-membranous bands in the rectum or bladder. CIBA'LIS. From cibus, food. Of, or belonging to, food. CIBA'TIO. From cibus, food. The act of taking food. CICA'DA. A genus of insects, celebrated for their powers of song, or shrill chirp, em- bracing the tree-hopper, frog-hopper, &c. The manna of the shops is the inspissated juice of the Fraxinus ornus, exuded from the wounds inflicted by the Cicada orni. CICATRIC'ULA. Diminutive of Cica- trix. A small cicatrix ; applied also to the small white speck seen on the yolk of the fecundated egg. CICATRIS'ANT. Cicatris'ans; from cicatrizo, to skin over. Such applications as are supposed to dispose wounds and ulcers, to dry up and heal. CICATRIX. From cicatrizo, to heal up, or skin over. A scar upou the skin after the healing of a wound or ulcer. CICATBIZA'TION. The process by which a wound or ulcer cicatrizes. CICELY, SWEET. A plant, Scandix odorata, Myrrhis odorata, possessing aro- matic, aperient and diuretic properties. Scandix odorata. CICHO'RIUM. A genus of plants of the order Cichoracece. Cichorium Endiv'ia. The endive, a bit- ter salad. Cichorium In'tybus. Wild succory. The juice of the root is said to be aperient. CICIN'DELA. The Lampyns noctiluca, or glow-worm ; formerly supposed to be an- odyne and lithontriptic, but not now used. CFCINUM OLEUM. An oil obtained from the bruised seeds of Jatropha curcas, possessing properties similar to castor oil. CICU / TA. A genus of plants of the order Apiaceoz. Until recently the term was often applied to Conium maculatum, a different genus. Cicuta Aquat / ica. Cicuta virosa, an active poison, seldom employed medicinally. Cicuta Macula / ta. American water hemlock; spotted cowbane ; beaver poison. It is a powerful narcotic, seldom employed in practice, and is supposed to be identical with Cicuta virosa. CICUTA'RIA. Cicuta, hemlock. Bas- tard hemlock. CIL / IA. Blephar'ides. The eyelashes, or hairs on the eyelids. CIL / IARY. Cilia / ris. Belonging to the eyelashes. Ciliary Arteries. The ciliary arteries are divided into short, or posterior, and an- terior. ' The first are numerous, and pene- trate the sclerotic coat of the eye near the optic nerve, and spread out upon the cho- roid membrane, and supply the iris and ciliary processes. They originate from the ophthalmic artery in three or four branches, but are divided into about twenty by the time they arrive at the sclerotica. The an- terior ciliary arteries are few in number, and pierce the sclerotica near the cornea, and are principally distributed upon the iris. Ciliary Body. A ring of the choroid coat of the eye, surrounding the crystalline lens like a crown placed behind the iris and ciliary circle. Ciliary Circle. Ciliary ligament. Ciliary Ligament. A grayish ring sit- uated between the iris, cornea, ancl scle- rotica. Ciliary Margin. The border of the eyelid. Ciliary Muscle. That part of the or- bicularis palpebrarum in the vicinity of the cilia. Ciliary Nerves. The nerves of the ciliary ligament. Ciliary Processes. The radiated plaits of the choroid membrane, which resemble the disk of a radiated flower, lodged in the depressions of the anterior part of the vit- reous humor. Ciliary Stride. Pale radiated striee in the posterior part of the ciliary body, so covered with pigment as not to be seen dis- tinctly till that is removed. Ciliary Veins. Vasa voriicosa. They follow the same course as the arteries, and cm 151 cm discharge their blood into the ophthalmic vein. Ciliary Zone. Ciliary crown, ciliary disk. The appearance, like the disk of a flower, which the pigment between the cil- iary processes leaves on the hyaloid mem- brane. CILIATED. Ciliatus. Fringed with fine hairs like the eyelashes. CIL/IUM. From cileo, to twinkle. The eyelash. CIL/LO. From cilium, the eyelid. One affected with cillosis. CILLO'SIS. A perpetual spasmodic trembling of the eyelids. CLMICIFUGA RACEMOSA. Actea racemosa; black snakeroot, a plant possess- ing tonic, antispasmodic, and expectorant properties. Dose of powder, gr. x to gr. XXX. CIMO'LIAPURPURESCENS. Fuller's earth. CIMOLITE. A grayish-white earth, consisting of silex, alumina, oxide of iron, and water. Cimolian earth. CINA CINA. Cinchona. CINARA. A genus of plants of the order Composites. The artichoke. CINCHO'NA. The name of several kinds of Peruvian bark, the use of which is said to have been discovered by this cir- cumstance : Some of the trees from which it is procured having been blown by the wind into a pool of water, they lay there until they had imparted to it such a bitter taste that everybody refused to drink it ; but a person residing in the neighborhood was seized with a fever and not being able to procure other water to quench his thirst, drank of this, and was soon completely cured. This circumstance was related to others ill of fevers, who drank it and were cured. Its use, however, as a medicinal agent, did not become general until about the year 1638, when the Spanish viceroy's lady, the Countess de Cinchon, was cured of fever by it at Lima, and hence the appel- lation of Cortex Cinchona?, and Pulvis Co- mitissae, or the Countess's Powder. It was afterwards introduced into Europe by the Jesuits, among whom the countess, on her recovery, had distributed it, and thence arose the name of Cortex or Pulvis Jesuit- icus, Jesuit's Bark; called also Cardinal de Lugo's Powder, because a large quantity of it was taken to Rome for the use of the re- ligious poor by that charitable prelate. Cinchona is called, also, cortex; bark; Peruvian bark; cortex China; China Chinchina; kina; kinkina; quina quina; quinquina. These barks are possessed of bitter, astringent, tonic and febrifuge prop- erties, and have constituted one of the most valuable remedies of the materia medica, in the treatment of intermittent fevers, as well as other diseases, but since the dis- covery of their active principle, quinina, they have not been so much used. Cinchona Alkalies. Cinchonia, quinia, and aricina. They are regarded as oxides of a common base, termed quinogen. Cinchona Barks, False. Barks pro- cured from trees formerly ranked among the Cinchonacece, and distinguished from the true Peruvian bark by the absence of quinia and cinchonia. Cinchona Flava. Yellow Bark, called in commerce Calisaya Bark. There are several other varieties of yellow bark, but the Calisaya, the product of the Cinchona Lanceolata, is the most valuable. Cinchona Pallida. Pale Bark, called in commerce Loxa Bark. There are several other commercial varieties, but this is the most highly esteemed, and is the produce of the Cinchona condaminea. Cinchona Rubra. Red Bark, called in South America cascarilla roxa and Colorado. This is from an undetermined species of Cinchona. CINCHONACEiE. The Cinchona tribe of dicotyledonous plants. Trees or shrubs with leaves opposite ; flowers in panicles ; stamens arising from the corolla ; fruit in- ferior, either splitting into two cacci or in- dehiscent. CINCHONIA. Cinchonina; cinchonine. The active principle of Cinchona lancifolia. An organic, crystalline alkali, of a white color, bitter taste, slightly astringent, sol- uble in 2500 parts of boiling water, but very soluble in boiling alcohol, and slightly sol- uble in ether and the fixed and volatile oils. But the sulphate of cinchonia, which is formed directly from cinchonia, is soluble in water as well as alcohol. CINCHONIC ACID. Kinic acid; an CIN 152 CIE acid found in Cinchona barks, and in the alburnum of Abies communis. Cinchonic Red. An insoluble red sub- stance found in Cinchona barks. CIN'CHONIN, or CIN'CHONINE. Cinchona. A peculiar vegetable principle, or alkali, discovered in the Cinchona con- daminea. CINCIN'NUS. The hair on the temples. CIN / CLESIS. Involuntary winking or nictitation. CINERARIUM. The ash-pit of a fur- nace. CFNERES. Plural of cinis, ashes. Ashes. Cineres Clavellati. Potassa impura. Pearlash. CINERPTIOUS. Cineritius; from ein- is, ashes. Of the color of ashes. The corti- cal substance of the brain is sometimes so called, from its resemblance to ashes. CINET'ICA. Kivmtihoc, having the power of motion. Diseases affecting the muscles. Spasms. The third order in the class Neuroses, in the Nosology of Dr. Good. CINETUS. The diaphragm. CIN'GULUM. From cingo, I bind. A girdle applied to the body below the ribs. Cingulum Hildani. A leathern girdle formerly used for the reduction of luxations and fractures of the extremities. Cingulum Mercuria / le. A girdle of flannel applied to the loins, containing mer- curial ointment. CINIS. Ashes. CINNABAR. Hydrargyri sulpJiuretum rubrum. A sulphuret of mercury. It oc- curs native, and is made artificially. The former appears in the form of brilliant red crystals, and also in amorphous masses of different shades of red and brown ; the lat- ter is the red bisulphuret, the vermilion of commerce. CINNAMIC ACID. An acid obtained from the oil of cinnamon. CINNAMO'MUM. From Kinnan, He- brew. A genus of plants of the order Lauracece. Cinnamomum Zeylanicum. The tree which yields the Ceylon cinnamon, the Laurus cassia of the gardens. Cinnamomum Cassia. Cinnamomum aromaticum. The cinnamon cassia, which yields the cassia lignea, cassia buds, and cassia bark of commerce. CINNAMON. The bark of Cinnamo- mum Zeylanicum, and of Cinnamomum aromaticum. Cinnamon Stone. A silicate of lime, alumina, and oxide of iron ; a rare mineral, from Ceylon, of a hyacinth-red color, or yellowish-brown. Cinnamon Suet. An oily and waxy pro- duct of the cinnamon tree, used in Ceylon for making candles. CIN'NAMYL. Cinnamide. The hypo- thetical radical of cinnamon oil, &c. CION. K/a>v, a column. The uvula was formerly so called from its pyramidal shape. CFONIS. From mw, a column. Swell- ing and elongation of the uvula. CIONFTIS. From xim, a column, and His, signifying inflammation. Inflamma- tion of the uvula. CIONORRHA'PHIA, mm*, the uvula, and paq»i, a seam. The same as Staphy- lorrhaphy ; which see. CIONOT'OMY. Excision of the uvula. CIR'CINATE. To make a circle; to compass. Applied in Botany to leaves, and other parts when rolled inward from the point to the base, like the young frond of a fern. CIRCOCE'LE. Cirsocele. CIR / CULAR. Circularis ; from circu- lus, a circle. Having the form of a circle. CIRCULATION. CircuWtio ; from circuluSj a circle, or from circum, around, and ferre, latum, to carry. In Physiology, the circulation of the blood through the dif- ferent vessels of the body. In this vital ac- tion, the blood is ejected from the left ven- tricle of the heart into the aorta and taken to every part of the body, passes into the veins and is returned to the right auricle of the heart, which, after distending to receive it, contracts and forces it into the right ven- tricle Thence it passes into the pulmonary artery, is conveyed to the lungs, and brought back to the heart by the pulmonary veins ; entering the .left auricle, it is forced into the left ventricle, to be again conveyed by the arteries to the different parts of the body. Circulation, Capillary. The passage of the blood through the minute vessels which lie between the arteries and veins, and penetrate all the tissues. The blood, CIR 153 CIS in its passage through these vessels, is changed from arterial to venous. Circulation, Foetal. See Foetal Circu- lation. CIR'CULUS. A circle or ring. In Anatomy, any part of the body which is round like a circle, as the circulus oculi. Circulus Arteriosus I'ridis. The ar- tery which forms a circle round the iris. Circulus Articuli Vasculo'sus. The narrow vascular border formed around the articular cartilages by the abrupt termina- tion of the subsynovial vessejs. Circulus Osseus. The bony ring of the foetus, afterwards united to the temporal bone, forming the meatus auditorius ex- ternus. Circulus Quad'ruplex. The name of a bandage used by the ancients. Circulus Tonsillaris. A plexus form- ed by the lingual and glosso-pharyngeal nerves around the tonsil. Circulus Willisii. The circle of Wil- lis ; an anastomosis between the branches of the vertebral and internal carotid arteries within the cranium. CIRCUMAGENT'ES. The oblique mus- cles of the eye. CIRCUMCAULA'LIS MEMBRANA. The conjunctiva. CIRCUMCISION. Circumcisio; from circumccedo, to cut about. An operation practised among the Jews, consisting in the removal of a portion of the prepuce of the infant, by a circular operation. CIRCUMDUCTION. Circumduct™. See Perisphalsis. CIRCUMDUCTIONS OP'IFEX. The worker of circumduction ; an epithet for the superior oblique muscle of the eye. CIRCUMFLEX. A name applied to various arteries of the extremities. CIRCUMFLEXA II/II. An artery passing around the crest of the ilium, spring- ing from the external iliac. CIRCUMFLEXES. From circum, around, and flexus, bent. Bent circularly. In Anatomy, a name given to several or- gans of the body. A muscle of the palate. Circumflexus Pala'ti. Tensor palati. A muscle of the palate, which arises from the spinous process of the sphenoid bone, and is inserted into the velum pendulum palati, and the semilunar edge of the os I palati, extending as far as the suture which unites the two bones. CIRCUMFU'SA. In Hygiene, every- thing which acts externally and generally upon man. CIRCUMGYRA'TIO. From circum- gyro, to turn round. Turning a limb around in its socket. Vertigo. CIRCUMOSSA'LIS MEMBRANA. Periosteum. CIRCUMSCRIBED. In Medicine, tu- mors which are distinct at their base from the surrounding parts. CIRRHO'SIS. Fromxww, yellow. A yellow coloring matter, sometimes secreted in the tissues owing to a morbid process. Also, a disease of the kidneys. Cirrhosis Hep'atis. Granulated, tu- berculated, and hobnailed liver. It is de- pendent upon repletion of the terminal ex- tremities of the biliary ducts with bile, to- gether with altered nutrition of the interven- ing parenchyma by which the liver becomes smaller, atrophied. CIRSOCE'LE. From *ifvot, a dilated vein, and x»x», a tumor. Morbid enlarge- ment of the spermatic vein. CIRSOM'PHALUS. From «//>«c, a di- lated vein, or varix, and coaxes, navel. Varicose condition of the veins surrounding the navel. CIRSOPHTHAL'MIA. From xi^o?, and o^ax/uoc, the eye. A varicose condition of the vessels of the eye. CIRSOT'OMY. From n?™, a varix, and *o/u», an incision. The removal, by in- cision, of varices. CIRSOS. Ki/>/v», a bed. In Pathology, the transactions which take place, especially the instructions given at the sick-bed. Clinical Lecture. A lecture given at the bedside, or on a particular case of dis- ease. Clinical Medicine. That which is oc- cupied with the investigation of disease at the bedside, or with individual cases of disease. CLINKER. The vitreous substance which collects in furnaces and stoves where stone coal is used; also the black oxide of iron of the smith's forge. CLINK-STONE. A dark greenish-gray, yellowish, bluish, or ashy-gray mineral, of a slaty structure, generally arranged in tabu- lar masses, and usually translucent at its edges. CLINOID. Clinoideus ; from kxivh, a bed, and «/o ? , pain. Pain in the belly. CCELO'MA. From *w*o f , hollow. An ulcer of the cornea of the eye. CCELOSTOM'IA. From noixas, hollow, and 0-roju.x, mouth, defective enunciation, characterized by hollowness of voice. CCEN^ESTHE'SIS. Concesthesis : from Jto/fo?, common, and av^wris, perception. Common perception or general sensibility of the system. CCENOLOG'IA. From xwof, common, and Acyos, a discourse. A consultation. CO/NOTES. From xo/voc, common. The methodic sect of Physiceus, who declared that all diseases arise from relaxation, stric- ture, or both. COFFER DAM, BARNUM'S. See Rubber Dam. COHABITATION. The act of living together. In Legal Medicine, intercourse between the sexes. COHESION. Cohcesio ; from cohozreo, I hold together. Attraction or cohesion is that power by which particles of matter are connected and held together in such a way as to resist any attempt at separation. COHOBA'TION. Cohoba'tio. In Chem- istry, the distillation of a fluid, on a sub- stance of the same kind as that upon which it was at first distilled, and repeating it several times. COFLIMA. Sudden swelling of the ab- domen from flatulence. COINDICAN'TIA. From con, and in- dico, to indicate. Signs furnishing the same indications, or which are confirmatory of the indications furnished by other signs. Such signs are called coindicant. COIRAS. Scrofula. COPTION. Coitus; from coeo, to go together. Copulation. Carnal union, or conjunction of the sexes. COKE. Pit coal deprived of its bitumen or other extraneous or volatile matter by fire. COLATU'RA. From colore, to strain. A liquor which has been filtered or strained. COI/CH1CUM. From Colchis, the name of the place where this plant is supposed to have abounded. A genus of plants of the oi'der Nelanthaceoz and family Colchicacece. Meadow-saffron. Colchicum Autum'nale. Meadow-saf- fron: a bulbous plant, found in many parts of Europe, usually growing in meadows. It is an irritant ; in overdoses, an acro-narcotic poison. In small doses it is a nauseant, diuretic, diaphoretic, and cathartic, and is employed in the treatment of gout and rheu- matism. All the species yield the alkaloid veratria. The seed and root are used. Dose gr. ij to gr. viij. COI/CHICIN, or COLCHICINE. The active principle of Colchicum autum- nale. COI/COTHAR. Colcothar vitrioli ; brown-red rouge ; crocus martis vitriolatus seu adstringens. A brown-red oxide of iron, which remains after the distillation of the acid from sulphate of iron. COLD. Privation of heat, or the sensa- tion produced by the abstraction of caloric from the body. Also, the common name for a catarrh. Cold Cream. Unguen'tum a'quce ro'sce. U. S. Ph. Take of rose-water, oil of almonds, each two fluid ounces; spermaceti, half an ounce ; white wax, a drachm. Melt together, by means of a water-bath, the oil, sperma- ceti, and wax-, then add the rose-water and mix until cold. COLEOCELE. From xoaio?, a vagina or sheath, and x»a», rupture. Hernia, vag- inal. COLEOP'TOSIS. From *oMo f , and wt*w, a fall. Prolapsus, vaginal. COLE / WORT. Cabbage. COL'IC. Co'licus; from xa*ov, the colon. Pertaining to the colon. A term applied in Pathology to almost all acute pains in the abdomen. So called because the seat of the pain is supposed to be in the colon. Colic Arteries. These are six in num- COL 160 COL ber. Three are given off by the superior mesenteric, which are called the colicce dexti-ce. The other three are given off by the inferior mesenteric artery, and are called the colicce sinistrce. CO'LICA. The colic. Colica Accidexta'lis. Colica crapulosa. Colica Bilio / sa. Bilious colic. Colica Calculo / sa. Colic produced by earthy concretions in the intestines. Colica Callo / sa. Colic attended with a sense of stricture in some part of the in- testinal canal. Colica Convulsi'va. Idiopathic colic. Colica Crapulo / sa. Colic produced by eating hard and indigestible aliments. Colica Damxokio'rum. Metallic colic, a colic peculiar to Devonshire. Colic at- tended with fever. Colica Flatulen'ta. Colic from an ac- cumulation of air in the intestines. Flat- ulent colic. Colica Hemorrhoidals. A colic sup- posed to precede hemorrhoids, or to super- vene on their suppression. Colica Hkpat / ica. Hepatic colic. Colica Hysterica. Colic attending hysteria. Colica Ixflammato'ria. Inflammatory colic; enteritis. Colica Lappox'ica. Colic peculiar to Laplanders. Colica Madriden'sis. A colic endemic in several provinces of Spain, resembling somewhat lead colic in its symptoms. Colica Menstrua'lis. Colic which pre- cedes or follows menstruation, or depends on the suppression of that flux. Colica Mesexteri'ca. Colic produced by disease of the mesentery. Colica Metal / lica. Metallic colic. Painter's colic. Colica Xephret'ica. Acute pains at- tending nephritis or calculi of the ureter. Colica Xervo'sa. Xervous colic. Colica Picto'num. Painter's colic. Me- tallic colic ; also, called Colica saturnina, being produced by the poisou of lead. Colica Scorto'rum. A colic to which, according to Dr. Martin Hassing, the pros- titutes of Copenhagen are subject. Colica Spasmod'ica. Spasmodic colic. Colica Sterco / rea. Colica stipa'ta. Colic from the retention of faeces in the in- testines. Colica Veva. A branch of the upper mesenteric vein. Colica Vena Recta. A vein of the colon. Colica Vermixo'sa. Worm colic, or colic from the presence of worms in the intestines. COLICODYXIA. Colic. COLFTIS. From *a>xc* ? the colon, and itis, inflammation. Inflammation of the mucous membrane of the colon. COL/LAGEX. k«aa*, glue, and ytiiau, to produce. The chief constituent of bone, cartilages, ligaments, tendons, &c. By boil- ing, it forms glue or gelatine. COL/LAPSE. Collapsus. COLLAP'SUS. From collabor, to shrink down. Shrinking of the body. Prostration of strength. COLLAR-BONE. The clavicle. COLLARE MISERICORDLE. A band- age used for securing a patient during the operation of lithotomy. COLLECTIOX. Collectio; from collin- gere, to collect. Used in Pathology to de- note the collection or gathering of pus, or some other purulent or serous matter. COLLET. From collum. the neck. A neck or collar. A term applied by some French writers, in Dental Anatomy, to the neck of a tooth. COLLIC'ULUS. A little hill or emi- nenee; applied in Anatomy to various ele- vations in the body. Colliculcs Cave^: Posterioris Ven- tricclorum Lateralium. Hippocampus minor. Colliculus Xervi Ethmoidalis. Cor- pus striatum. Colliculcs Xervi Optici. Optic thal- amus. Colliculcs Semixalis. An eminence in the prostate gland. COLLIGA'MEX. From colligo, to tie together. A ligament. COLLIXSO'XIA C AXADEXSIS. Heal- all; horse-balm; an indigenous plant, used in domestic practice as an emetic, diuretic, and diaphoretic. COLLIQUAMEXTUM. From colliqueo, I melt. The first rudiment of an embryo. COLLIQUA'TIOX. Diminution of the COL 161 COL solids, with copious excretion of liquids by one or more outlets. COLLIQUATIVE. Colliquati'vus ; from colliqueo, I melt. Applied to various discharges, as colliquative perspiration, diarrhoea, &c, which occasion rapid loss of strength. COLLOBO'MA. From Ko\xaa>, to glue together. Colobroma. Agglutination of the eyelids together. COLLO'DES. From x.ohha, glue. Gluti- nous. COLLO'DION. Collodium. Ethereal solution of Gun-cotton. An impervious ad- hesive plaster is made of this solution, pe- culiarly adapted to the dressing of wounds which require water dressing. A prepara- tion called Barker's Solution, is used in me- chanical dentistry, to prevent the rubber, when being vulcanized, from adhering to the surface of the plaster model. Collodion, Canthar'idal. A vesicat- ing solution of cantharides in collodion. Collodion, Elastic. A solution of gut- ta percha in chloroform. COLLOID. From kokxol, glue. Resem- bling glue. In Pathology, the jelly-like de- generation of some malignant tumors, as a colloid cancer. COLLO / MA. A transparent, amorphous matter, without vessels and nerves, found in cysts. COLLONE'MA. Kox**, glue. A very soft tumor containing a clear, grayish-yel- low substance like gelatine or fresh glue. COL / LUM. From ko>kov, a member, as being one of the chief; or diminutive of columnia, as being the pillar and support of the head. The part of the body between the head and chest. The neck. COLLUSION. Collu'tio. Washing the mouth or any other part. COLLUTO'RIUM. From colluo, to wash. A mouth-wash ; gargarism. COLLU / VIES. From colluo, to cleanse. Filth; excrement; the matter discharged from an old ulcer. COLLYR'IUM. From «**», I check, and ptao, I flow. This term was applied by the ancients to a medicine used to check any discharge, but at present it is restricted to a wash or application to the eyes. The collyria of the Pharmacopoeias are for the most part, metallic lotions. Collyrium Plumbi Acetatis. A collyr- ium of acetate of lead. Collyrium Plumbi Acetatis et Opii. A collyrium of opium and acetate of lead. Collyrium Zinci Acetatis. A collyr- ium of acetate of zinc. Collyrium Zinci Sulphatis. A collyr- ium of sulphate of zinc. COLOBO / MA. Kcxojga/ua, anything trun- cated or shortened. A mutilated or maimed organ. COL'OCYNTH. The fruit of the Cucu- mis colocynthis deprived of its rind. It is a powerful drastic, hydragogue cathartic. Dose, gr. v to x ; of the compound extract gr. v to xxx. COLOCYNTH'IN. The bitter principle of colocynth. COLOMBO. See Calumba. CO / LON. Colum ; Intesti' num majus. The portion of the large intestine which ex- tends from the cascum to the rectum. COLONPTIS. Acute dysentery. COLOPHO'NIA, So called from Colo- phon, the city from which it was first brought. The black resin which remains in the re- tort, after distilling common turpentine with a strong fire. COLOQUINTIDA. Colocynth. COLOR. In Physics, an iuherent prop- erty in light, which gives to bodies particu- lar appearances to the eye. The primary colors, according to Sir Isaac Newton, are red, orange, yellow, green, blue, indigo, and violet. COLORING MATTER. A coloring principle existing in vegetable substances. The colors which adhere to cloth without a basis are termed substantive, and those which require a basis, adjective. COLOSTRATION. A term for diseases of new-born infants, caused by the first milk they suck. COLOS'TRUM. The first milk secreted in the breast after parturition. COLOT'OMY. Cutting into the colon. COLPOCE'LE. Vaginal hernia. COLPOC / OSE. Gangrene of the vagina i and labia. COLPOCYSTOTOM'IA. Lithotomy through the vagina. COLODESMORRAPH'IA. Removal of a portion of the mucous membrane of the 11 COAX 162 COM! vagina, for the cure of prolapsus of the vagina and uterus. COLPOI/GIA. Pain in the vagina. COLPORRHEX'IS. Rupture of the vagina. COLPO'SIS. Colpitis. Vaginitis. COLPOT'OMY. Incision of the vagina in parturition. COLPOPTO'SIS. A prolapsus of the vagina. COLPOTRE'SIA. Imperforation of the vagina. COLTS FOOT. See Tussilago. COLUMBA. Calumba. COLUMBIC ACID. An acid obtained from the ore of columbium ' COLCM'BIUM. A metal discovered by Mr. Hatchet in Massachusetts. It is also termed Tantalum, COLUMEL'LA. Diminutiveof columna. a column. A column or little pillar ; the central column, or filament uniting the par- titions in the capsules of plants: also the uvula and clitoris. COLUMELLARES DENIES. The cuspid teeth are so called from their shape. COLL'M'XA. A column. In Anatomy. applied to parts of the body, which resem- ble in shape or office a column, as the co- lumnar cameo? of the heart; columna nasi, kc. Columna Xasi. The lowest part of the septum of the nose. Columna Oris. The uvula. COLUM'X.E CARXE.E. The small fleshy columns which project into the auri- cles and ventricles of the heart. COLUTORIUM. A gargle. CO / MA. K*ui. A profound sleep from which the individual cannot be roused. It occurs as a symptom in many diseases. Coma Somnolen'tum. A deep morbid sleep. Lethargy. Coma-Yi'gil. A term for the lethargic condition of the patient in bad cases of tv- phus. in which he is watchful and muttering in delirium. Agrypno-coma. CO'MATA. The plural of coma. Dis- eases characterized by a diminution of the powers of voluntary motion, with sleep or the senses impaired. COM'ATOSE. Having a propensity to sleep. Affected with coma. COMBIXA'TIOX. From cum, with, and binus. two. The union of two or more bodies in definite proportions, by chemical attraction, from which results a compound possessing new properties. COMBUSTIBLE. Capable of being burnt. COMBUSTION. Conbustio; from com- buro. to burn. Burning. The combination of oxygen with a combustible body. Among the phenomena which attend combustion, is the evolution of heat and light, but as these are supposed to be dependent on chemical action, they may also be expected in other chemical processes. The presence of oxygen, therefore, is not absolutely neces- sary to them. Combustion, Spontaneous. This most remarkable phenomenon frequently occurs in accumulations of vegetable, animal, and even mineral substances, under circumstan- ces favorable to its development. It is also said to occur sometimes in the human body. COMEXIC ACID. A pale yellow crys- talline and slightly soluble substance, pro- duced by the decomposition of meconic acid by heat. COM'FRY. The popular name of Sym- phytum offic i n a 1 is. COMMAXDUCATIO. From comman- duco ; to eat. Mastication. COMMI. Gum. COM'MIXUTED. Comminu'ius ; from comminuere, con and minuo, to break to pieces. In Surgery, a bone broken into a number of pieces : applied also to food af- ter it has been masticated or ground be- tween the teeth. COMMINUTION. The fracture of a bone into a number of pieces : the tritura- tion, breaking to pieces between the teeth, or mastication of food. COM'MISSURE. Commissu'ra; from com m itto, I join together. A point of union between two parts. The commissures of the lips and eyelids are the angles where they come together. Commissure. Anterior, of the Braix. A small medullary-like substance, crossing the anterior part of the third ventricle of the brain, uniting the two hemispheres. Commissure. Posterior, of the Braix. A medullary substance uniting the two hemispheres of the brain across the poste- COM 1G3 COM rior part of the third ventricle, and above the corpora quadrigemina. Commissure of the Uvea. The ciliary ligament. COMMU / NICANS. From communis, common. That which communicates or establishes a communication. Applied to two arteries of the cranium, one anterior, and one posterior. The first extends from one anterior cerebral artery to the other ; the second from the internal carotid to the posterior cerebral. Communicans Tibiae. The external sa- phenal branch of the tibial nerve. COMOSE. In Botany, ending in a tuft. COMPACT. Compac'tus ; from con, and pangere, to strike, to fix. Solid, close. In Anatomy, applied to the hardest and closest parts of a bony tissue. COMPAGES. From Compingo, to put together. An articulation, a commissure. COMPARATIVE. In Anatomy and Physiology, that which illustrates by com- paring with the human body, or any part of it; as, for example, the comparative an- atomy of the teeth embraces a knowledge of the differences that exist between these organs in different animals. COMPLEX. Complex'us; from con, with, and plectere, to twist. Complicated. COMPLEXION. The color of the face; the aggregate of physical characters pre- sented by a body, with reference to consti- tution, temperament, &c. COMPLEXES. Complex. Composed of several distinct things. Complexus Mi'nor. Mastoideus later- a / lis. The name of a muscle which arises from the transverse processes of the last four cervical vertebrae, and is inserted into the mastoid process of the temporal bone. Complexus Mus'culus. Complexus seu biven'ter cervi'cis ; complexus major ; dorso traclielon-occipital. A muscle situated on the back part of the neck. COMPLICATION. Complica'tio. In Pathology, the presence of several diseases, or several circumstances, foreign to the pri- mary disease. COMPOSITION. ComposiVio; from componere, to place together. The act of composing or compounding, or that which results from such act, as a chemical or pharmaceutical composition, or a compo- sition for the body or enamel of porcelain teeth. COMPOS'IT^E. In Botany, the largest of all natural groups of plants, and so called because the old botanists who invented the name regarded the flower-heads as com- pound flowers. They answer to the Syn- genesia polygamia of Linnaeus," and are positively characterized by having capitate flowers, syngenesious anthers, and an in- ferior ovary with a single erect ovule. They are sometimes trees, but generally herba- ceous plants or shrubs. COMPOSITUM. A compound, or com- position of different things. COMPOUND. To mix or unite two or more ingredients in one mass or body, or a mass or body resulting from such a mix- ture. Compound Medicines have been di- vided into two classes, viz., Officinal Prep- arations, and Magistral or Extemporaneous. The former are those ordered in the Phar- macopoeias ; the latter are constructed by the practitioner at the moment. Compound Radicals. Substances which, though containing two or more elements, have the capacity of uniting with elementary bodies to form new compounds. COMPRESS. Compres'sa; from com- primere, to press together. Pieces of lint or folds of a rag, or any other substance, so contrived as, with the aid of a bandage, to make pressure upon any part. In Surgery, a compress is employed to arrest hemor- rhage, as well as various other purposes. COMPRESSED. Compres'sus. A term applied, in Surgery, to a bloodvessel, canal, or other organ suffering compression ; in Botany, to the various organs or parts of plants ; and in Mineralogy, to crystals which have a flattened figure. COMPRESSIBILITY. The property possessed by bodies of occupying a smaller space when subjected to the action of pressure. COMPRESSION. In Physics, the action exerted upon a body by external force, whereby its constituent molecules are pressed more closely together. It is em- ployed in Surgery for the repression of hem- orrhages, and in the treatment of aneurisms, wounds, sores, and various injuries of the animal organs. The agents ordinarily used CON 164 CON in such cases are the tourniquet, baudages, laced stockings, compresses, &c. Compression of the Brain. This may be caused by extravasated blood, a depressed portion of bone, an accumulation of fluid, or a tumor. COMPRESSOR. A name applied to muscles which draw together parts upon which they act. Also the name of instru- ments invented for compressing the femoral artery, and for other purposes. Compressor of Dupuytren. An instru- ment invented by Dupuytren for compress- invoc, a cone, be- cause of its conical shape. A cone. The pineal gland. CONCAVUS. Hollow; depressed in the centre. CONCENTRATION. Concentratio ; from con and centrum, a centre. In Medi- cine, an afflux of fluids, or a convergence of vital force towards an organ. Also, the evaporation of the water of fluids for the purpose of increasing their strength. CONCENTRIC. Concentri'cus. Com- posed of many layers arranged circularly, one within the other. CONCEPTAC'ULUM. A receiver ; a vessel ; the uterus. CONCEPTION. Conceptio ; from con- cipio, to conceive. The impregnation of the ovum in the ovarium, by the contact of the aura seminis. Conception, False. Term for a blighted ovum or imperfect impregnation. CONCHA. Kc>^. The name of a li- quid measure among the Athenians. In Anatomy, applied to several hollow parts of the body. Concha Aurk/ul^e. The concha of the ear. Concha Auris. The hollow part of the cartilage of the external ear. Conch^e Narium. The turbinated part of the ethmoid bone, and the inferior spongy bones, covered by the pituitary membrane. CONCHOID. Conchoi'des. Shell-like. CONCHO-HELIX. The small muscle of the helix. CONCHOI/OGY. From *o>^», a shell, and xoyot, a discourse. The science of shells. CON'CHUS. From «*>*», a shell, so called from its resemblance to a shell. The cranium ; the sockets of the eyes. CONCHYLIA. The turbinated bone. CONCIDEN'TIA. From Concido, to fall down. In Pathology, synonymous with collapse. A wasting or falling away. CONCOCTION. Concoctio ; from con- coquo, to digest. Digestion ; coction ; matu* ration. CONCOMITANT. Concomitans ; from con, and comitare — itself from comire — cum and ire, to go with. That which accom- panies, or goes with. In Pathology, a symp- tom which accompanies other symptoms. CONCREMATION. Calcination. CONCRETION. Concre'tio; from con- cresco, to grow together. That which has thickened, condensed, and become more solid. It was formerly used to signify the adhesion of parts. Concretion, Biliary. Gall-stones. Concretions, Salivary. A deposit of phosphate of lime and animal matter some- times found in the substance of the salivary glands, or in the ducts, and on the teeth. Concretions, Urinary. Calculi depos- CON 165 CON ited from the urine in the kidneys, ureters, bladder or urethra. CONCUR'SUS. From concurrere, to meet together. The congeries of symptoms which constitute and distinguish a particu- lar disease. CONCUSSION. From concutio, I shake together. In Surgery, agitation communi- cated to one organ by a fall upon another, as the brain from a fall on the buttocks. Concussion of the brain often causes very alarming symptoms. Concussion of the Brain. A disturb- ance of the brain produced by a fall or blow. It has been supposed that some of the ner- vous fibres are broken under these circum- stances. It differs from compression in the absence of stertorous breathing. CONDENSAN /r TIA. Inspissantia. Med- icines supposed to inspissate the humors. CONDENSATION. Condensa'tio; from condenso, to make thick. A thickening of a fluid. In Anatomy and Pathology, an increase in the density of the blood, or other fluids, or any of the tissues of the body. In Chemistry, the subjection of aeriform bodies to pressure, or the conver- sion of vapors to fluids by cold. CONDENSER. An alembic. Condenser, Liebig's. A contrivance of Liebig for condensing volatile liquids dur- ing distillation. It consists of two tubes, the inner of which contains the vapor, and the outer a stream of cold water constantly flowing. CONDIMENT. Condimen'tum ; from condire, to preserve or season. Anything used for seasoning food, as butter, salt, pepper, spice, &c. CONDFTUM. A pharmaceutical com- pound of wine, honey, and some aromatics, especially pepper. CONDOM. The intestinum ccecum of the sheep, cleansed and used as a covering of the penis during coition, to prevent ve- nereal infection or pregnancy. Such con- trivances, however, are, as a witty woman once remarked, " bucklers against pleasure, but cobwebs against danger." CONDUCTOR. From conducere, to lead or guide. That which conducts or serves as a guide. In Surgery, an instrument used for directing a knife or bistoury in cer- tain operations. In Physics, a body capable of conducting caloric and electricity. CONDUIT. A passage of small dimen- sions. A canal. A pipe for conveying water. CONDYLARTHRO'SIS. Articulation by condyles. CONDYLE. Con'dylus; aawWc, the joint of the finger, a tubercle or knot. An articular process of a bone, flat in one di- rection and round in the other. CONDYLI DIGITORUM MANUS. The phalanges. CONDYLOID. Condyloi' deus; from Kovfvxos, a condyle, and tt&os, shape. Shaped like a condyle. Condyloid Foramina. Foram'ina con- dyloi' 'dea. Four foramina, two anterior, and two posterior, in the occipital bone. Condyloid Process. A condyle. CONDYLOMA. Condylus; from *«- «Tyxi3f, a knot, an eminence. A soft wart- like excrescence, of an indolent character, which appears about the anus and orifice of the genital organs, and sometimes on the fingers, as a consequence of syphilis. CONDYLOM'ETER. From xov, I bring away. A cath- artic. COPREM'ESIS. From wsr/w, fieces, and tjutu, I vomit. Vomitiug of faeces. COE 171 COE COPREM'ETUS. One affected with Copremesis. COPROCRIT'ICUS. A mild cathartic; an eccoprotic. COPROLITE. Koirpoe, excrement, and x/Oo?, a stone. A ball of hardened fasces, or other mass, in the bowels. COPROSCLERO'SIS. Induration of fecal matters. COPROSTA'SIS. Constipation; cos- tiveness. COP'TIS. Coptis trifolia; a bitter plant, sometimes used in aphthous and other ulcer- ations of the mouth. COPTIS TEE'TA. The root is a pow- erful tonic, and stomachic. Dose, gr. x to XXX. COPULA. Ligament. COPULATION. Coition. COPYO'PIA. Weakness of sight. COR. The heart. COR'ACO-BRA'CHIALIS. A muscle situated at the inner and upper part of the arm. It arises from the forepart of the coracoid process of the scapula, and is in- serted about the middle of the inner side of the os humeri. Coraco-Clavicular Ligament. A liga- ment which serves to unite the clavicle to the coracoid process of the scapula. Coraco-Hyoideus. A muscle between the os hyoides and shoulder. See Omohy- oideus. CORACOID. Coracoi'deus ; from*e/>*£, a bird, a crow, and Woe, resemblance. Re- sembling the beak of a crow. A name ap- plied to some processes from their fancied resemblance to a crow's beak. A process situated at the anterior part of the upper margin of the scapula is designated by this name. CORAL. From nopta, I adorn, and *\s the sea. A beautiful production, attached to submarine rocks, in the form of a shrub It is of a bright red, black, or white color, and is principally composed of calcareous substance, secreted by the animals which form it. CORALLFNA. A genus of marine pro- ductions, supposed to be polypifers, having the appearance of a plant, and containing gelatin, albumen, chloride of sodium, phos- phate, carbonate, and sulphate of lime, car- bonate of magnesia, silica, oxide of iron, and a coloring principle. CORALLIUM ALRUM. White coral. CORALLIUM NIGRUM. Black coral. CORALLIUM RUBRUM. Red coral ; the hard calcareous substance of the I sis nobilis. CORD, UMBILICAL. The cord formed by the union of the umbilical vessels and integuments, which connects the foetus with the placenta. CORDA. A cord. CORDATE. From cordis, the heart. Heart-shaped. COR / DIA. A genus of plants of the order Cordiacece. Cordia Myxa. The Sebesten plant. The fruit is black, mucilaginous, and gently laxative. It has been used in bronchial af- fections. COR / DIAL. Cordia'lis; from cor, gen, cordis, the heart. Warm and exciting medi- cines, formerly supposed to be strengthen- ing to the heart. CORDINE'MA. Vertigo. CORDIS. The heart. CORDS, VOCAL. The ligaments of the glottis. CORDOLIUM. From cor, the heart, and doler, pain. Cardialgia, or heartburn. CORE. In Anatomy, the pupil of the eye. In Pathology, the slough in the cen- tral part of boils. CORECTOM'IA. Formation of artificial pupil by removal of a part of the iris. CORECTOP'IA. From **wov, the skull, and cuoveet, to explore. The exam- ination of the skull. CRANIOTOMY. Opening of the foetal head, where necessary, to effect delivery. CRA / NIUM. From mpma*, the head. The bony encasement of the brain and its membranes. It is composed of eight bones ; namely, the os frontis, the two ossa parte- talia, the two ossa temporum, the os occip- itis, the os ethmoides, and the os sphenoides. The last two are common to the cranium and face. Cranium Huma / num. The human skull, or cranium. Cranium, Perforation of. Cranioto- my. An operation sometimes performed by the accoucheur, when from deformity of the pelvis, the head of the foetus cannot pass through it. It consists in the introduction of a perforator, invented by Smellie,. through the fontanelle, and rotating it so as to break up the brain. CRA NTER. From upamiv, to finish, ren- der perfect. The dentes sapientiae are some- times so called, because the presence of these teeth is necessary to a perfect den- ture. CRA / SIS. From Kipawvpt, I mix. A mixture of the constituents of a fluid. The term is applied to the fluids of the body When their constituents exist in the proper proportion, health results, but when some predominate, as in dropsy, scurvy, &c, the healthy mixture of the principles of the blood or crasis is destroyed. CRASSAMEN'TUM. From crassus, thick. The thick part of any fluid. The coagulum or clot of the blood. See Coag- ulum. CRASSUM INTESTINUM. The colon. CRASSUS. Thick; corpulent. CRASSUS PULSUS. A strong, full pulse. CRAT^VA. A genus of plants of the order Capparinacece. The fruit of nearly all the species have been called garlic pears, from their peculiar alliaceous odor. CREA. Ocrea. The anterior part of the leg. The shin. CREAM OF TARTAR. See Potass® Bitartras. CRE / ASOTE. Creasotum; creasoton; from xptae, flesh, and £a>, to preserve. A colorless, transparent fluid, of a disagreea- ble penetrating odor, soluble in alcohol and acetic acid, obtained from tar by distilla- tion. It is irritant, narcotic, styptic, anti- septic, and somewhat escharotic. Exter- nally, it is applied to eruptions, ulcers, and wounds, and is used in injections and gar- gles. Internally, it has been given in epi- lepsy, neuralgia, hysteria,, chronic catarrh, haemoptysis, and phthisis. The dose inter- nally is one or two drops. Externally, it is sometimes used in its pure state; at other times, diluted and commonly with water (f 3»ss to f.^vj) ; or in the form of ointment (f^ss to ^j of cerate). Specific gravity 1.046. It coagulates albumen, Ijence its haemostatic power. CREOSOTE WATER. Aqua Crea- so'ti. Of creasote, a fluid drachm ; of dis- tilled water, one pint. CREATINE 7 . A neutral, colorless, transparent, crystalline body, obtained by Liebig, from the juice of muscles. It is one of the first steps in the metamorphosis of the products of decay to urea. CREATININE 7 . A base formed from creatine by heating it in hydrochloric or nitric acid. CREEPING SICKNESS. The gangren- ous form of ergotism. CREMAS'TER. From «w«z», I suspend. The muscle by which the testicle is sus- pended, drawn up, and compressed during the action of coition. It is a thin muscular fascia, which detaches itself from the inter- nal oblique muscle, passes through the ab- dominal ring to the tunica vaginalis. CREMNON'CUS. From «^»m, the la- bia pudendi, and cytcec, a tumor. A swell- ing of the labia pudendi. CRE'MOR. Cream. Any substance floating on the top of a liquid, and skimmed off. Cremor Tartari. Cream of tartar. CRE'NIC ACID. A sulphur-yellow acid. CEE 179 CEI the product of vegetable decomposition, found in soils and springs. CRENA. Crenatura. The irregular pro- jection or serratures by which an accurate junction of the bones of the cranium is formed by the sutures. CREOSOTE. Creasote. CREPITANT. Crepitans. From crepi- tare, to crackle. Crackling. A term ap- plied in Pathology, to the peculiar rattling sound heard during respiration in the first stages of pneumonia, and in oedema of the lungs. In Zoology, the name of an insect of the Brachinus genus, which emits a crackling sound when assailed. CREPITA /r riON. From crepitare, to crackle. In Surgery, the noise made by the friction of the extremities of fractured bones against each other when moved in certain directions. Crepitus or crackling is, like- wise, met with in cases of gangrene, when air is effused into areolar membrane. The term is also used for the cracking of joints when there is a deficiency of the synovial fluid. In Chemistry, the crackling noise made by certain salts during calcination. The term is also applied to the crackling noise made by effused air into the cellular membrane when pressed between the fingers. CREPITUS. From erepo, to make a noise. Crepitation ; which see. CRESCEN'TIA. Increase; augmenta- tion ; growth. Crescen'tia Cuje'te. The narrow-leaved calabash tree ; a West India plant, the pulp of the fruit of which is acidulous, and is used in diarrhoea, &c. CRESCENTS. Enlargement of the lymphatics in the groins. Waxing kernels. CRESS. The name of several species of plants; a number of them have a pungent taste and are used as salads, and are es- teemed in medicine for their antiscorbutic qualities. Cress, Garden. Lepidium sativum. Cress, Indian. Tropceolum majus. Cress, Water. Sisymbrium aquaticum. CREST. See Crista. CRE'TA. Chalk. From Creta, the isl- and where it was first found. Native fri- able carbonate of lime. Creta Pr^epara'ta. Prepared chalk. Used externally as an absorbent, internally as an antacid. Dose gr. x to 3j or more. CRETACEOUS. Chalky. Containing or relating to chalk. CRETIN. One affected with cretinism. CRETINISM. Cretinismus. Supposed to be derived from cretira, old Italian for a poor creature. A peculiar endemic affec- tion common in some parts of Valois, Tyrol, Switzerland, and the Pyrenees, characterized by an idiotic expression of countenance, en- feeblement of the mental faculties, obtuse sensibility, and goitre. CRI DE CUIR. Friction sound of per- icarditis. CRIBRA'TUS. Cribro'sus. Like a sieve ; perforated with holes. CRIBRIFORM BONE. Cribriformis ; from cribrum, a sieve, and forma, likeness, because it is perforated like a sieve. The ethmoid bone CRFCO-ARYTENOID. Crico-aryten- oidosus. Pertaining to the cricoid and aryt- enoid cartilages. Crico-Arytenoid, Lateral. A muscle which arises from the cricoid cartilage, and is inserted into the anterior part of the base of the arytenoid cartilage. Crico-Arytenoid, Posterior. A tri- angular muscle situated at the back part of the larynx, arising from the middle of the posterior surface of the cricoid cartilage, and inserted into the base of the arytenoid cartilage. Crico-Pharyngjeus. See Constrictor Pharyngis Inferior. Crico-Thyroideus. Crico-thyroid. A muscle of a triangular shape at the anterior and inferior part of the larynx. It arises from the side and anterior part of the cri- coid cartilage, and is inserted into the in- ferior margin of the thyroid cartilage. Crico-Thyro-Pharyng^eus. The con- strictor pharyngis. CRICOID. Cricoides,cricoideus ; from xpiKoe, a ring, and ttfsc, resemblance. The name of one of the cartilages of the larynx. It is round like a ring. CRICOS. K^xof. A ring. CRIMNO / DES. Crimno'ides, from *pi/u- vcv, coarse meal, and ttJoc, resemblance. Resembling meal. A term applied to urine, when it deposits a sediment like coarse meal or bran. CRINA / LE. From crinis, hair. A com- pressing instrument formerly used in cases CEO 180 CEO of fistula lachrymalis. One end of the in- strument consisted of a cushion stuffed with hair, and hence its name. OR IN IS. The hair. CRINO / NES. An infantile disease, con- sisting in the eruption of black hairs from the skin of the back, arms, and legs, with febrile emaciation and irritation. CRISIS. Diacrisis; decision ; from Kfnvu>, I decide ; *pt/v», to secrete, from its supposed virtues in promoting a secretion of urine and a discharge of the menses. Sarnphh-e ; sea-fennel. Crithmum Marit'imum. The Linnsean name of the samphire or sea-fennel. CRITICAL. Criticus ; from crisis, and xptvm, to judge. Belonging to a crisis, or determining the result of a disease from certain symptoms. CROCI'NUM. From */«««, saffron. Made with saffron ; colored with saffron. A mixture of oil and saffron. CROCON'IC ACID. Rhodizonic acid. CRO / CUS. A genus of bulbous-rooted plants. Saffron ; the Pharmacopceial name of the prepared stigmata of saffron. Also, the name of several preparations of metallic substances, as Crocus Martis and Crocus Veneris. Crocus Antimo'nii. A sulphuretted oxide of antimony. Crocus German'icus. Carthamus tine- tori us, or bastard saffron. Crocus In'dicus. The turmeric plant. Crocus Mar'tis. Calcined sulphate of iron. See Polishing Rouge. Crocus Sati'vcs. The saffron plant, which has a sweetish, fragrant odor; a warm, pungent, bitter taste, and is of a deep or- ange-red color. It is sometimes used in ex- anthematous diseases and nervous affections, but more frequently as a coloring ingredient in compound preparations. Dose, gr. x to xx. Crocus Veneris. Oxide of copper, formed bv calcining the metal. CROMMYOXYREGKMIA. Sour, fetid, onion-like eructations. CROSS-EYE. Strabismus. CROSS WORT. Eupatorium perfolia- tum. Boneset; thorough wort. CRO / TALUS. From zpomxov, a rattle. A genus of poisonous serpents, characterized by the appendage of a rattle at the tail; a rattlesnake. CROTAPHPTES. From «f*T**sff, the temple. Pertaining to the temples. A term applied to the temporal artery, vein, or nerve. CROT'APHOS. Crota'plmnn ; from KpiTtm, to pulsate. Pulsating pain in the temples ; also temple, temporal bone. CROTCHET. A small hook. Applied by the French, in Dental Prosthesis, to clasps employed for the retention of a den- tal substitute in the mouth. In Obstetric Surgery, a curved instrument with a sharp hook for the extraction of the foetus in the operation of embryotomy. CRO'TON. A genus of plants of the order Euphorbiacece. Croton Bexzoe. See Styrax Benzoin. Croton Cascarii/la. See Croton Eleu- theria. Croton Eleuthe / ria. The plant which affords the cascarilla bark. Croton Laccif'erum. The name of an CEU 181 CEU East Indian tree, the resinous juice of which affords gum lac. Croton Oil. O'leum tig'lii. The ex- pressed oil of the seeds of the croton tig- liuin, which, when pure, is a drastic purge, operating with great rapidity ; but its use is dangerous from the irritation it some- times produces. Dose, gtt. i to £ or £. Croton Tig / lium. A Ceylonese plant, every part of which is said to possess medi- cinal properties. The root acts as a drastic cathartic. From the seeds, the croton oil, oleum tiglii, is expressed. Croton Tinctorium. The lac plant. CROTONATE. A salt formed from crotonic acid with a base. CROTO'NE. A fungus found on trees, produced by an insect like a tick. Also, by extension, applied to small fungous tu- mors of the periosteum. CROTGN'IC ACID. An acid obtained from the seeds of Croton tiglium. CROUP. Cynanche trachealis. Suffo- cating breathing, accompanied by a stridu- lus noise, dry cough, and expectoration of tough membranous sputa. See Cynanche Trachealis. Croup, Hysteric. A spasmodic affec- tion of the larynx attacking hysterical fe- males. CROW'S BILL. In Surgery, a kind of forceps for extracting balls and other for- eign bodies from wounds. Crowfoot. See Ranunculus. Crowfoot Crane's Bill. See Gera- nium Pratense. CROWN. C'oro'na. In Anatomy, ap- plied to parts of a circular form surmount- ing other portions of the same body, as the crown of a tooth, corona dentis, &c. Crown Bark. Loxa bark ; cortex cin- chona? lancifoliae ; the bark of the Cin- chona condaminea. Crown of a Tooth. The exposed part of the tooth above the gums, covered with enamel. See Teeth. CRU / CIAL. Crucialis ; from crux, a cross. Having the shape of a cross. Crucial Bandage. A bandage shaped like a capital T. Crucial Incis'ion. An incision made in the shape of a cross. Crucial Ligaments. Two ligaments of the knee-joint. CRUCIATE. Crucia'tus. Cruciform. CRU / CIBLE. From crucio, I torment, because metals were tortured by fire to yield up their various virtues. A vessel of a conical shape in which substances are exposed to the heat of a fire or furnace, formed of earthenware, porcelain, black lead, silver or platina. They are used by dentists, goldsmiths, and jewellers, for re- fining and alloying gold and silver, and for this purpose they should be formed of sub- stances capable of bearing considerable al- ternations of temperature without break- ing or cracking. The best crucibles are formed from pure clay, mixed with pulver- ized old crucibles, black lead, and pounded coke. CRUCIFORM. From crux, crvcis, a cross, and forma, shape. Cruciformis ; cross-shaped. Applied, in Anatomy, to the ligaments which close the articulations of the phalanges and to the crucial ligaments. CRUDE. Unprepared ; raw. Applied to natural or artificial products which re- quire purification. CRU / DITY. Cru'ditas ; from crudus, crude, unprepared. Rawness, crudeness. Applied to aliments in a raw state ; also to undigested substances in the stomach. CRUOR. One of the solid parts of co- agulated blood ; coagulum, crassamentum. CRU / RA. The plural of cms, a leg. Applied to some parts of the body from their resemblance to a leg, as crura cerebri, crura cerebelli, crura of the diaphragm, &c. CRUR^E'US. From crus, a leg. Cru- ra'lis. A muscle of the anterior part of the thigh. CRU / RAL. Crura'lis. Belonging to the leg, or lower extremity. Crural Arch. The inguinal arch. Crural Artery. The femoral artery. Crural Canal. The femoral ring. Crural Hernia. Femoral hernia. Crural Nerve. A nerve situated on the outside of the psoas muscle and femoral artery, proceeding from the lumbar plexus. Crural Plexus. A plexus formed by the union of the last four pair of lumbar nerves. Crural Ring. See Crural Canal. Crural Vein. Femoral vein ; has the CEY 182 CEY same arrangement as the artery. It re- ceives but one branch, the saphaena. CRURA'LIS. Cruraeus. CRURIS RADIUS. Fibula. CRUS. The leg ; also the thigh. CRUSTA. A scab j a shell ; the scum of a fluid. Crusta Adamantina Dentium. The enamel of the teeth. Crusta Carno'sa. The middle tunic of the intestines. Crusta Ge'nu Equi'n^e. Knee scab. A scab or corn formed on the knees of some horses. Crusta Inflammato'ria. The buffy coat of inflamed blood. Crusta Lac / tea. Porrigo larvalis. Crusta Petro / sa. The cementum of the teeth. Crusta Villo / sa. The inner or mucous coat of the stomach and intestines. CRUSTACEA. A class of articulated animals protected by a hard shell. CRUS'TULA. A small shell or scab ; also an effusion of blood under the conjunc- tive membrane of the eye. CRYMO'DES. Kpupa&s. From k P v/uos, cold. A fever in which the internal parts are hot and the external cold. CRYMODYN'IA. From a/ayew, cold, and oJw» } pain. Chronic rheumatism. CRYMO'SES. From Kp/uos, cold. Dis- eases caused by the actiou of cold. CRYOLITE. From upvos, ice, and m$oc, stone. A rare mineral, fusible in the flame of a candle ; a double fluoride of sodium and aluminum. CRYOPH'ORUS. Kpvos, cold, and «y», to bear. An instrument in which water is made to freeze by the cold produced by its own evaporation. CRYPT A. From x^w^-to?, concealed. In Anatomy, a small oval hollow body ; a follicle or small pit ; a follicular gland. In Botany, the round receptacles for secretion, observed in the leaves of some plants, as in the myrtle and orange. CRYPTiE. The rounded excrescences at the ends of the small arteries of the corti- cal substance of the kidneys. Sebaceous glands. CRYPTOG'AMOUS. Cryptogam' reus ; from x/ji/^-to?, concealed, and >*/«<;?, a mar- riage. Plants whose organs of fructification are concealed or not manifest. CRYPTO R'C HIS. Crypsorchis. Kpuyrroc, concealed, and «/>;£/?, testicle. One whose testicles have not descended into the scro- tum. CRYP'TOUS. Cryp'tus. Kpum, to hide. Hidden or concealed. CRYPTS, SYNOVIAL. The bursa? mu- cosae. CRYS'TAL. Crystallus : Kpva-raMoc. When fluids become solid, their particles unite and frequently assume regular deter- minate forms, which are termed crystals. Crystallized quartz was supposed by the ancients to be water congealed by intense cold, and hence, says Cleaveland, the term xpucr/)*?&>, I describe. The doctrine of the modifications and forms of crystals. CRrS'TALLOTD. From K P u, to bring forth. The product of conception. CYESIOL'OGY. Cyesiohg'ia; from xwxa-K, pregnancy and xsycc, a description. The doctrine of generation. CYESIS. Conception. CYLINDER. From kuxivU, I roll. A long, circular body of uniform diameter. A round tube is a hollow cylinder. The long bones are called cylindrical. CYLINDRICAL. Cyl'indroid. Re- sembling a cylinder. CYN 187 CYS CYLLO'SIS. Ku\\av } a dog. Relating to, or resembling, a dog. A cynic spasm is characterized by a contortion of one side of the face, in which the eye, cheek and mouth are dragged downward. C YNODES'MION. The frsenum of the prepuce. C YNODON'TES. From *vw, a dog, and ctoc, curved. Gibbosity of the spine. Cyrtosis Cretinis'mus. Cretinism. Cyrtosis Rachia. Rachitis. CYS'SARUS. The rectum. CYS'SOTIS. Inflammation of the anus. Tenesmus. CYST. Kyst. From kvo-tic, a bladder. A membranous sac or cavity, in which mor- bid matters are collected. CYSTAL'GIA. From *^t/c, a bladder, and *x>o?, pain. A painful spasmodic af- fection of the bladder. CYS 188 CYT CYSTAUX'E. Hypertrophy of the blad- der. CYSTEOI/ITHUS. A stone in the urinary or gall bladder. CYS'TIC. Cys'ticus, from *uo-f«, a bag. Belonging to the urinary or gall bladder. Cystic Artery. The artery of the gall bladder. Cystic Duct.' The duct proceeding from the gall bladder, and which, after uniting with the hepatic, forms the ductus communis choledochus. Cystic Oxide. See Cystin. CYS / TICA. Remedies used for diseases of the bladder. CYSTICER'CUS. From nmm, a blad- der, and ks/>*5?, a tail. The tailed bladder- worm. CYSTIFELLEOT'OMY. k«/«-t«, a blad- der, and TifAntv, to cut. Operation by which a gall-stone is extracted from the gall blad- der. CYSTIN. Cystic oxide. A peculiar animal matter found in certain conditions of the urine, and in some urinary calculi. CYSTIRRSAG'IA. Hemorrhage from the bladder. CYSTIrlRHGE'A. From mwmt, and />•», to flow. A copious discharge of mucus from the bladder, passing out with the urine. Vesical catarrh. CYS / TIS. From x.urrtc, a bag. A cyst, bladder, or small membranous bag. The urinary bladder, or membranous bag in- closing any morbid matter. Cystis Urinaria. The urinary bladder. CYSTI'TIS. Inflammation of the blad- der. CYS'TITOME. K«ot«, bladder, and TijUYtiv, to cut. An instrument for opening the capsule, or sac of the crystalline lens. CYSTO-BUBONOCE'LE. From xwt«, the bladder, and fcv&v, the groin A species of hernia in which the urinary bladder is protruded through the abdominal ring. CYSTOCE'LE. From *trw, the blad- der, and kiiku, a tumor. Hernia of the blad- der. CYSTODYN'IA. Pain in the bladder. CYS'TOID. Resembling a cyst or blad- der. CYSTOLITHI'ASIS. Kuarts, and xrfloc, a stone. Urinary calculous disease. CYSTOLITHUS. A urinary calculus. CYS'TO-MEROCE'LE. Protrusion of the bladder through the crural arch. CYSTOPLAS'TY. An operation for the cure of fistulous openings into the bladder, consisting in the dissection of skin from a neighboring part, and uniting it by suture to the edges. CYSTOPLE'GIA. From writ, the bladder, and 7rK*r } I strike. Paralysis of the bladder. CYSTOPTO'SIS. From w«rw, the blad- der, Trivree, to fall. Protrusion of the in- ternal coat of the bladder into the canal of the urethra. CYSTOSPAS'TIC. Kktt/? and «•«•, to draw. Belonging to spasm of bladder. CYSTOTOME. An instrument or knife used in cystotomy. CYSTOTOMY. Cystotomia; from »r- T/?, the bladder, and rtuvtiv, to cut. Cutting or puncturing the bladder. CYT'INUS. A genus of plants of the order Cystinacece. Cytixus Hypocist / is. Rape of cystus; a fleshy, pale yellowish parasitical plant, found on the roots of several species of cys- tus, and from which the succus hypocistidis is obtained. CY'TOBLAST. From wroc, a cell, and &\aai. Sup. carb. sodae, £iss. Sac. album, ,^vij. Olei rosae, gtt. xij. Mix and reduce to an impalpable powder. Astringent and Aromatic Dentifrice. R. — Pul. gallae, 5iss. " orris root,5vj. Cretae prep. 3 ij. Corticis cinchonae, £j. Mix and reduce to an impalpable powder. Paste for Cleaning the Teeth. R. — Pul. orris root, 5 V. " cinnamon, ^ss. Cretae prep. 5iv. Corticis cinchonae, 3 iij . Mix, pulverize to a fine powder, and add a sufficient quantity of honey to form a stiff paste. DEN 201 DEN Other formulae might be given, but the foregoing will suffice. DENTINAL TUBULL A multitude of fine canals in the structure of the dentine. They are described by microscopists as having distinct parietes, of a harder ma- terial than the intertubular tissue. These tubuli commence on the walls of the pulp- cavity and radiate, in a wavy course, through every part of the dentine to its periphery ; near the masticating surface of the crown of a tooth, they have a nearly vertical direction, and towards the approximal surfaces, a hori- zontal direction. See Dentine. DENTINE. Denti'num. Tooth-bone; ivory. The name given by Professor Owen to the tissue which forms the chief part of a tooth, termed, by German anatomists, KnocheiisubstanZy Zahnbein, and Zahnsub- stanz, and situated between the enamel of the crown, cementum of the root, and the pulp-cavity. The structure of dentine, ac- cording to Professor Retzius, of Stockholm, is tubular. The tubes radiating from the pulp are "directed perpendicularly to the surface of the tooth,*' and pursuing a waving course, " each tube having three curves like the Greek letter C- Besides these primary curves, the tubes when examined with a" high " magnifying power, are seen to present smaller secondary undulations, which are less perceptible in the deciduous than in the permanent teeth, and less marked at the ex- ternal extremity of the tubes than in the middle of their course. The undulations are nearly parallel in the different tubes, and thus give rise to the appearance of concentric lines around the cavity of the pulp in a sec- tion of the ivory. Their diameter remains the same (namely, T ^ T of a French line, or about -g^j of an English line) from their commencement at the cavity of the pulp to the middle of the outer third of their course ; it then diminishes rapidly, until the terminal branches cease to be visible, or terminate in small irregularly round cells." With a mag- nifying power of 300 to 500 diameters, it can be seen that the tubes are not simple, but branch by a dichotomous division, and in their whole extent give off numerous side twigs, which again subdivide and occupy the spaces between the principal tubes. These minute lateral branches are seen most readily in the deciduous teeth ; those from different tubes appeared to Retzius not to anastomose, except, perhaps, by their finest extremities. The tubes have a more regular arrangement, their lateral branches are smaller, and the cells more minute and difficult to discover in the human teeth than in those of any other animals. " When the wall of the cavity of the pulp of a tooth is regarded with a sufficiently high magnifying power, it is seen to be perforated by numerous small orifices, separated by numerous narrow interspaces; these are the openings of the dental tubes. In sections also made to the course of the tubes, their lumen can be seen, and they then appear as bright rings surrounding a spot, which, ac- cording to the variations of the light, is dark or light, or in part dark and in part light. Some of the tubes are seen to be cut obliquely. The rings have a different aspect from the substance in which they are im- bedded, and have sometimes a yellowish color; hence, as well as from the observa- tions of Professor Miiller, it is evident that the tubes have special parietes, and are not mere excavations in the substance of the ivory. Professor Retzius confirms the ob- servation of Professor Muller, that the tubes contain an organic earthy matter in glan- dular masses, which disappears under the action of the dilute muriatic acid. The cells, and the small tubes which radiate from them, also contain earthy matter, as in bone. They are naturally white and opaque ; but, after maceration in dilute muriatic acid, become colorless and transparent. " Examining the ivory in different mam- malia, reptiles, and fishes, Retzius met with many varieties of structure; the most im- portant of which, are those which show the great resemblance of ivory to bone. The cells or corpuscles are in many mammalia in greatest abundance at the superficies of the ivory ; but in others, they, together with fine tubes which issue from them or termin- ate in them, and which are continuous with the larger dental tubes, occupy in greater part all the interspaces between the latter. These cells of the ivory contain calcareous matter, and are evidently analogous to the corpuscles discovered by Purkinje in bone, which also have fine anastomosing tubes radiating from them. The part of the ivory, after the teeth have emerged from the gum, DEN 202 DEN namely, the extremity of the fang, and that part which fills up the cavity of the pulp, has less regularity of structure than the ivory previously formed ; the tubes are less parallel, the cells larger, and the anasto- moses of the small tubes terminating in these more distinct; all of which circum- stances give this imperfectly formed ivory a great resemblance to true bone. But the ivory in the teeth of some animals presents characters which assimilate it still more re- markably to the structure of bone. In the teeth of man and most mammalia, the ivory is formed regularly in successive layers on the surfaces of the pulp, which, in the body of the teeth, undergoes no other change than gradual diminution in size. In other animals, however, as the sloth (bradypus), walrus (trichechus), pike (essox), ling (ga- dus molva), and wolf -fish (anarrhichas lu- pus), the pulp, after forming the most ex- ternal layer of ivory, consisting of closely set dental tubes perpendicular to the surface, divides into a number of processes, similar to, but more numerous than those which form the fangs of the human molars; and around each of these processes, or branches of the pulp, ivory is formed in layers. In many instances, as in the saw-fish (pristis), ling, and wolf-fish, the numerous divisions of the pulp anastomose with each other, like the medullary canals of bone. This form of ivory presents in many animals, particularly in the walrus, the most striking resemblance to bone ; the divisions of the pulp are seen surrounded with concentric laminae, which, like the layers of bone sur- rounding the medullary canals, contain rings of cells or corpuscles, and these lam- ina, again, are traversed by fine radiating tubes analogous to the radiating striae in bone, which were supposed by Deutsch to be tubes." Professor Retzius ascribes to the dental tubes and cells the office of distributing to the tooth a. nutritive fluid secreted by the surface of the pulp, and while he does not believe that the dentinal and cortical sub- stances undergo any change, he is of the opinion that they are the seat of a vital pro- cess, consisting in an interchange of the fluid of a tooth, which operation he regards necessary to preserve in them that property by which they are enabled to endure con- stant pressure without injury or loss of sub- stance.* But that the dentinal part of a tooth is vascular, and, under certain circum- stances, capable of being injected with red blood, is now well established. The author has several preparations of dentine in which, when examined under the microscope, ves- sels injected with red blood are seen. The researches of Professor Owen con- firm most of the observations of Retzius. He says: " The prolongation or persistence of cylindrical canals of the pulp-cavity in the dentinal tissue, which is the essential character of vascular dentine, manifests it- self under a variety of forms. In mammals and reptiles, these canals, which I have termed 'medullary,' from their close analo- gy with the so-called canals of bone, are straight, and more or less parallel with each other; they bifurcate, though rarely; and when they anastomose, as in the megathe- rium, it is by a loop at, or near the periph- ery of the vascular dentine. In the teeth of fishes, in which the distinction between the dentinal and osseous tissues is gradually effaced, the medullary canals of the vascu- lar dentine, though, in some instances, straight and parallel, and sparingly divided or united, yet are generally more or less bent, frequently and successively branched, and the subdivisions blended together in so many parts of the tooth, as to form a rich reticulation. The calciferous tubes sent off into the interspaces of the network, partake of the irregular character of the canals from which they spring, and fill the meshes with a moss-like plexus."f The microscopical researches of Mr. Xas- myth represent dentine to be cellular in its structure. The fibres he found to be inter- spersed and made up of different compart- ments, the shape and size of which vary in different animals. In the human tooth they are oval, their long axis corresponding with the course of the fibre, and the extremity of each in apposition to the adjoining one. The cells constitute the framework in which the osseous matter is deposited, and thus become the fibres of the dentine. Prof. C. Johnson, of Baltimore, who has devoted much time to microscopical re- * Vide Appendix to Miiller's Physiology, f Tide Odontography. DEN 203 DEN searches, is of the opinion that the baccated appearance of the fibres of dentine, as de- scribed and represented by Mr. Nasmyth, is owing to the manner in which the speci- mens for examination are prepared. The researches of Leeuwenhcek, Fraenk- nel, Purkinje, Schwan, Tomes, and Beale, have also thrown much valuable light on the structural arrangement of dentine. [Until very recently the dentinal tubuli have been regarded by histologists as canals for conveying to the tubular and intertubular tissues new material to supply the molecular loss constantly occurring in all organic structures. Mr. Tomes, however, was the first to discover under the microscope a number of "fibrils" projecting from the dentinal tubuli, which he regards as con- tinuations of the nerve fibres of the dental pulp. Dr. Lionel S. Beale, to whom we are much indebted for recent discoveries, con- firms Mr. Tomes's views, and says that they are not canals for the passage of nutrient fluids which transude through the walls of the vessels, and are supposed to pass along the tubes to the periphery. — Ed.] Dentine, Sensitive. A painful condi- tion of a tooth, attributed by some to the disturbance of nerve filaments radiating from the pulp into the tubuli of the tooth, or to the conduction of the shock of the in- strument to the pulp ; by others it is at- tributed to a local chemical action, and a pathological condition of the general sys- tem. Such remedies as arsenious acid, chloride of zinc, tannin, chromic acid, car- bolic acid, creasote, camphorated spirits of wine, &c, are recommended for its treat- ment. DENTISCAI/PIUM. From dens, a tooth, and scalpere, to scrape. An instru- ment employed for the removal of salivary calculus, and for scraping the teeth. A number of instruments are often required for these purposes, so shaped that they may be readily applied to any part of a tooth. The name has also been applied to a gum- lancet and tooth-pick, but we think it ap- plies more strictly to the first mentioned in- struments. DENTIST. Dentis'ta ; odontia'ter ; den- iarius ; a dental surgeon. See Dental Sur- geon. DENTISTRY. Odontotecli'ny ; odon- tiatria ; odontotherapV a. Dental Surgery, embracing everything pertaining to the treatment and replacement of the loss of the natural teeth. DENTFTION. Denti'tio ; from dentire, dentiium, to breed teeth. Teething. The emergence of the teeth from the alveoli and gums. With regard to the manner in which this operation of the economy is effected, a va- riety of explanations have been given. Some, and we believe, by far the greater number, attribute it to the prolongation of the pulp for the formation of the root of the tooth, or, in other words, that a tooth is pushed from its socket and through the gum, by the formation of its root. But that this opinion is erroneous would seem evident from the fact that, if the elongation of the pulp commenced before the crown of the tooth had made any advance towards the gum, it would come in contact with the floor of the alveolus, and being in a soft and yielding condition, would be caused to as- sume an unnatural configuration. It is ap- parent, therefore, that the crown must make some progress towards the gum before an elongation of the pulp can commence, and this must be effected by some other agency; others believe that the tooth is forced from its socket by the moulding of the alveolus to its root, but the objections which apply to the other theory will apply with equal force to this. M. Delabarre believes the exit of a tooth from its matrix, and its passage through the alveolus and gum are effected in precisely the same manner as the birth of a child. The sac he regards as the chief agent, and that it is by the contraction of this, which is adherent to the neck of the tooth, that the organ is lifted from its socket, and its neck ultimately brought to a level with the gum. This is the only philosophical and truly plausible explanation that has ever been given of this most curious and inter- esting operation of the animal economy, and when we take into consideration that the inner membrane of the sac is of a fibro- mucous and cellular structure, it is easy to perceive how the advance of a tooth may be effected by the contraction of this inclos- ure, which is firmly attached to its neck, and also to the gum. DEX 204 DEX Goodsir divides dentition into three stages, to wit : the follicular, the saccular, and the eruptive. See Teeth, Development of Pulps and Sacs of; also, Harris's Dental Surgery. Dentition, First. The dentition of the deciduous, milk, or temporary teeth. The following may be regarded as a very near approximation to the periods when they are most frequently erupted. The central incisors from 5 to 8 months after birth ; the lateral incisors from 7 to 10 ; the first molars from 12 to 16; the cnspidati from 14 to 20 ; and the second molars from 20 to 36 months. No general rule, however, can be laid down from which there will not be frequent variations. Dentition-, Morbid. Although dentition may be regarded as a healthy operation of the economy, it is sometimes performed with difficulty, and attended with serious and occasionally alarming effects. There are few children who do not suffer more or less during the progress of dentition, and when we consider the early age at which this operation commences, and the irritable state of the body while it is going on, it will not appear strange that it should often be attended with painful effects. Even in later life, during the dentition of the wisdom teeth, it is sometimes productive of verv alarming symptoms. See Harris's Dental Surgery. Dentition, Second. There is no opera- tion of the animal economy more curious or interesting than that which is exhibited in the gradual destruction of the roots of the temporary, and in the growth and dentition of the permanent teeth. The time of life when this occurs constitutes an important epoch in the history of every individual. During childhood each of the alveolar arches forms only about the half of a circle, but by the gradual elongation of the jaws, each ultimately forms nearly the half of an ellipsis, so that the number of teeth re- quired, at the one period, is but little more than half the number required at the other. The rudiments of the permanent incisors and cuspidati have attained their full size at birth, and each is situated immediately behind its corresponding temporary tooth. Shedding of the Temporary Teeth. With regard to the manner of the de- struction of the roots of the temporary teeth, there exists some diversity of opinion. Most writers believe they are removed by the absorbents, while some are of the opinion that it is a chemical operation. Laforgue r observing a fleshy body behind the root of the temporary tooth, which, in fact, had been noticed by Bourdet, and supposed by him to exhale a fluid which possessed sol- vent qualities, gave it the name of absorb- ing apparel, and assigned to it the office of removing the root of the primary tooth. Delabarre, who has treated this subject at greater length, and apparently investigated it more closely, corroborates the views of Laforgue, and gives the following descrip- tion of the manner of the formation aud function of the carneous substance spoken of by this author as the absorbing apparel. '• While the crown of the tooth of replace- ment/' says Delabarre, u is only in forma- tion, the exterior membrane of the matrix is simply crossed by some bloodvessels; but as soon as it is completed, the capillaries are then developed in a very peculiar man- ner, and form a tissue as fine as cobweb; from this tissue the internal membrane, instead of continuing to be very delicate, and of a pale red color, increases in thick- ness and assumes a redder hue. As was before said, it is at the instant in which commences the reaction of the coats of the matrix, that are conveyed from the gum to the neck of the tooth, that the plaiting of the vessels, that enter into their tissue, compose a body of a carneous appearance, whose absorbents extend their empire over all the surrounding parts : it is, therefore, the dental matrix itself, which after being dilated to serve as a protecting envelope to the tooth, is contracted to form not only this bud-like body which we find immedi- ately below the milk tooth, at the instant in which it naturally falls out, and whose volume is necessarily augmented as odonto- cia gradually goes on, but also a carneous mass by which the whole is surrounded, and whose thickness is the more remarkable as the organ that it envelops is nearer its orifice." After giving this description, he asks. " Is there a dissolving fluid that acts chemically DEN 205 DEN on the surrounding parts, or do the ab- sorbents, without any intermediary, destroy everything thatwould obstruct the shooting up of the tooth ?" In reply to this, he says, il Not possessing positive proof suitable to guide me in the decision of this question, and finding those of others of little im- portance, I shall not attempt to answer them.'' It oftentimes happens that the root of a temporary tooth fails to be destroyed, and that the crown of the replacing organ comes through the gum in a wrong place. When- ever this happens, the carneous body is de- veloped only beneath the parts through the opening of which the new tooth has emerged, and is not brought in contact with the bony partition between it and the root of the tem- porary tooth. The manner of the destruction of the roots of the temporary teeth has been a subject of close and critical inquiry with the writer for several years, and the more he has examined the subject, the more fully has he become convinced that it is the re- sult of the action of these fleshy tubercles upon them. And while its formation seems to be the result of the contraction of the sacs of the permanent teeth and their ap- pendages, for the purpose of effecting their eruption, they are especially charged with the removal of everything that would ob- struct their passage. In conclusion, it is only necessary to ob- serve that the temporary teeth are shed in the order in which they at first appear. After one pair has been shed, a sufficient time usually elapses before the shedding of another, for those of the same class of the permanent set to come forward and take their place. Thus, the jaws are never de- prived, unless from some other cause than the destruction of the roots of the tempo- rary, of more than two teeth in each jaw, at any one time. See Teeth, Development of Pulps and Sacs of. Eruption of the Permanent Teeth. Second dentition usually commences at about six or seven years after birth, and is generally completed, as far back as the sec- ond molars, by the twelfth or fourteenth year. The dentes sapientiae seldom appear before the eighteenth or twentieth year. The periods of the eruption of the adult teeth are, however, so variable, that it is impos- sible to state them with perfect accuracy. Sometimes the first permanent molars ap- pear at four years, and the central incisors at five ; at other times they are several years later. But as it is of some importance that the periods of the eruption of the several classes of the permanent teeth should be known, the author will state them with as much ac- curacy as possible. First molars, from 5 to 6 years 5 central incisors, from 6 to 8 years ; lateral incisors, from 7 to 9 years 5 first bicuspids, from 9 to 10 years; second bicuspids, from 10 to 11£ years ; cuspidati, from 11 to 12 years ; sec- ond molars, from 12 to 14 years ; third mo- lars (dentes sapientiae), from 17 to 21 years. But, as before stated, the periods of the eruption of the permanent teeth, like those of the temporary, are very variable. The cuspidati often appear before the second bicuspids, and, in some cases, the dentes sapientiae not until the thirtieth or even fortieth year, and sometimes they never show themselves. See Harris's Dental Sur- gery. Dentition, Third. That nature does sometimes make an effort to produce a third set of teeth, is a fact which, however much it may have hitherto been disputed, is now so well established, that no room is left for cavil or doubt. No attempt, that the writer is aware of, has ever been made to explain the manner of the formation of these anomalous pro- ductions. The rudiments of the teeth of first and second dentition are the product of mucous membrane, while those of third dentition would seem to have their origin in the periostial tissue, if not from the bone itself. In obedience to what law of develop- mental anatomy are they formed ? If the establishment of the law which governs the development of a part, depends upon a certain conditiou of other contiguous parts, it is possible that the following may furnish a correct explanation of the phenomenon. Certain parts, in certain states or conditions, and in particular locations, perform func- tions peculiar to the latter. In other words, the condition and location of a part deter- DEN 206 DEN mines the functions which it performs. For example, when the mucous membrane along the course of the alveolar border begins to assume a duplicated- or grooved appearance, which it does about the sixth week of intra- uterine existeuce, dental papilla? shoot up from it, and when, by a similar duplication of this same tissue, behind the sacs of the temporary teeth, forming what Mr. Goodsir styles " cavities of reserve,'' the papillae of the permanent teeth, one from the bottom or distal extremity of each duplication, be- gins to be developed. Hence, it would seem that this particular state or condition of this tissue, and in these particular loca- tions, is necessary to determine the devel- opment of teeth germs. This arrangement or condition of mucous membrane, in these particular locations, which always results from the development of the foetus, may be sometimes produced by accidental causes, after all the organs of the body have ob- tained their full size, or at any time during life ; and when it does occur, it is not un- reasonable to suppose that a new tooth pa- pilla should be formed. Proceeding still farther, the development of a dental papilla is the signal for the production of a dental follicle, which ultimately becomes a sac, and then an organ to supply the tooth, now considerably advanced in the process of formation, with a covering of enamel. But as the maxillary bone has previously at- tained its full size, it rarely, if ever, happens that alveoli are formed for these accidental productions, and, consequently, they seldom have roots, or if they do, they are very short and blunt. They are usually connected to the periosteum of the alveolar border, and this union is sometimes so close and inti- mate, that very considerable force is neces- sary for their removal. As a general rule, however, they loosen in the course of a few years and drop out. But it may be asked, how are such acci- dental duplications of the mucous mem- brane formed ? This is a question, we ad- mit, which it may not be easy to answer satisfactorily, but we do not think it at all im- probable that they sometimes occur during the curative process that follows the removal of one or more teeth. The granulated walls of the gums surrounding an alveolus from which a tooth has been extracted, may be- come covered with this tissue before the socket is filled with a deposit of new bone, or, at any rate, of the surfaces of the dupli- cated membrane near the bone, and when- ever such arrangement or condition of this tissue does take place upon the alveolar bor- der, and that it may occasionally, we think there can be no question, it is probable that a new tooth papilla is produced, which, in the progress of its development, is attended by the formation of the various appendages necessary to the production of a perfect tooth. This, in our opinion, is the only way that these fortuitous productions can be ac- counted for in accordance with true physio- logical principles. It seems impossible to explain the manner of their formation in any other way. If the foregoing views which we have ad- vanced be correct, these productions are not the result of a mere freak of nature, as they are sometimes facetiously styled. Thev are the result of the operation of an established law of the economy ; and although, after the completion of the teeth of the second dentition, its course is suspended, the occur- rence of a similar arrangement or condition of the mucous tissue in the parts in ques- tion will again put it in operation. DEXTFTIO. Dentition. DEXTIUM CAYERX.E. The sockets of the teeth. Dextium Cortex. The enamel of the teeth. Dextium Do'lor. Pain in the teeth ; toothache. Dextium Xit'or. Enamel of the teeth. Dextium Scalptu / ra. Lancing the gums. Dextium Vacillaxt'ia. Looseness of the teeth. DEN / TO. From dens, a tooth. One who has prominent teeth ; one whose teeth project. DEXTOG'RAPHY. Dentograph' ia ; from dens, a tooth, and ; pao//, description. A description of teeth. DEXTOIDEUS. Odontoid; tooth-like. DENTOL'OGY. Dentolog'ia ; from dens, a tooth, and /.oyoq, a discourse. A treatise on the teeth. DEXTOX'OMY. Dontonom'ia; from dens, a tooth, and vouoc, a law. The ar- rangement of the teeth into classes. Also, DEN 207 DEP the classification of the teeth according to their physiognomical characters, and their pathological and physiological indications. See Teeth, Characteristics of. DENTS BARRIES. See Barred Teeth. Dents Bicuspidees. The bicuspid teeth. Dents, Col des. Neck of the teeth. Dents Conoides. The canine teeth. Dents de Lait. The milk or temporary teeth. Dents Machemeres. The molar teeth. Dents Molares. The molar teeth. Dents Multicuspidees. The large mo- lar teeth. Dents (Eillieres. Canine teeth. DENTURE. A complete set of teeth ; the whole assemblage of teeth in both jaws. DENUDATION. Denuda'iio ; from denudare, to make bare. The laying bare, or deprivation of a part of its covering or envelope. In Surgical Pathology it is usu- ally applied to bones deprived of their peri- osteum j in Dental Pathology, to the teeth when deprived of their enamel, or when the roots are exposed by the recession of the gums and the destruction of their sockets. DENUDING OF THE TEETH. An affection which consists in the gradual de- struction of the enamel of the anterior or labial surfaces of the incisors, cuspidati, and sometimes of the bicuspids ; the molars are rarely affected by it. It generally forms a continous horizontal groove, as smooth and regular as if it had been made with an oval file, though sometimes it spreads over nearly the whole of the anterior surface, completely denuding this part of the organs of enamel. Commencing on the central incisors, it ex- tends to the laterals, the cuspidati, and bi- cuspids. After having removed the enamel, it attacks the subjacent dentine, the groove becoming gradually deeper and deeper un- til the pulp-cavities of the teeth are exposed. The color of the enamel is rarely changed, but the bone, as soon as it becomes ex- posed, assumes, first, a light, and after- wards a dark brown appearance — the sur- face of the groove the whole time remain- ing perfectly hard and smooth. This most curious and singular affection usually com- mences at a single point upon each of the central incisors, and proceeds horizontally backward ; but at other times it attacks several points almost simultaneously, but gradually the affected parts approach and unite, giving to the enamel the appearance of having been scooped out with a broad, round, or square pointed instrument. The cause of this affection appears to be involved in some obscurity. We are decidedly of the opinion that it is the re- sult of the action of an acid contained in the mucous secretions of the mouth. The other teeth being more constantly bathed in the saliva than the anterior surfaces of the incisors, cuspidati and bicuspids, the mucous fluids of the mouth are either washed from them, or so diluted as to render them harm- less, but upon the parts of the teeth last mentioned it is often permitted to remain for days. That this is the true cause would seem to be rendered certain by a case which fell under the observation of Dr. E. Parmly some years ago, in which the crowns of human teeth, used as a dental substitute, were attacked by this curious affection, thus prov- ing, most conclusively, that the loss of sub- stance was caused by the action of chemical agents, and if such cause is capable of pro- ducing it in one case, it is in all others. In the treatment of this affection, the most that can be done, is to widen the groove at the bottom, after it has gone far enough to require it, and fill it with gold. This will arrest its further progress. DEOB'STRUENT. DeoV struens ; from de, and obstruere, to obstruct. Medicines which remove obstructions, as aperients. The word has an indefinite meaning and is now seldom used. DEODORIZA'TION. The correction of any foul or offensive odors through the action of chemical agents, capable of ab- sorbing the odoriferous matter. DEOPPKLANS. DeoppiWtius. Deob- struent. DEOXIDA'TION. From de, from, and oxide, a compound of oxygen. The separa- tion of oxygen from any compound. DEPART. In Metallurgy, an old name for parting ; which see. DEPAS'CUS. Phagedenic. DEPAUPERATED. Impoverished in quality. Applied in Botany to certain stip- ulas, bracts, &c, which are imperfectly de- veloped, or shrivelled, as for want of nour- ishment. PEP 208 DEP DEPEND'ENS. Dependent. In Botany, hanging down. DEPERDI'TIO. Abortion. DEPHLEGMA'TION. Deyhlegma'tio; from de, from, and phlegma, a watery dis- tilled liquor, as distinguished from a spirit- uous liquor. In Chemistry, the separation. by distillation or other means, of the water existing in admixture with another liquid. DEPHLOGIS'TICATED. From de, from, and phlogiston, the inflammable prin- ciple. Without phlogiston. Dephlogisticated Air. Oxygen gas. Dephlogisticated Marine Acid. Chlo- rine. DEPILA'TION. Depila'tio; from de, and pilus, hair. Loss of hair. DEPILATORY. That which causes the loss of the hair, as caustic lime, &c. DEPI'LIS. Hairless. DEPLETION. Deple'tio; from depleo, I unload. The act of diminishing the ful- ness of the vascular system, by the abstrac- tion of blood, or by any system of evacua- tion. DEPLETORY. That which tends to deplete, as bloodletting, emetics, and ca- thartics . DEPLUMA'TION. Depluma'tio; from deplumis, without feathers. A disease of the eyelids which causes the loss of the eye- lashes. DEPOS / IT. From depono, to lay down. In Dental Pathology, the precipitation of an earthy substance (commonly called tartar) upon the teeth. In General Pathology, the accumulation of fat in an abnormal position, or morbid growths. The sediment of the urine is also called a deposit. DEPOSIT'IO. A term applied in Sur- gery to the depression of the lens in the operation of couching. DEPRAVATION. Deprava'tio; from de, and pravus, to corrupt. A depraved condition, or morbid change in the solids or fluids of the body; also, depravation of taste or sight. DEPRESSANTS. That which reduces the vital energy, by diminishing the fre- quency of the pulse, or the action of the heart and arteries. DEPRESSED. Depres'sus. Flattened from above downward. Applied in Zoology to the whole or part of the animal body, when its vertical section is shorter than the transverse. DEPRESSION. Depres'sio; from de- primere, to press down. In Anatomy, a fossa, hollow, or excavation. Applied in Pathology to the pulse when its strokes are feeble and slow: in Surgery, to fractures of the cranium in which portions of the bone are depressed ; also, to an operation for cat- aract, which consists in the depression of the opaque lens from the axis of vision into the vitreous humor. In Dental Anatomy, the indentations on the grinding surfaces of the molar and bicuspid teeth. DEPRESSOR. In Anatomy, any mus- cle which depresses the part on which it acts. In Dental Surgery, an instrument employed for confining the tongue to the floor of the mouth while introducing a fill- ing into a tooth of the lower jaw. See Tongue-holder. Depressor Al^e Nasi. See Depressor Labii Superioris Aleeque Nasi. Depressor An'guli Oris. A muscle of a triangular form, situated beneath the lower lip. It arises broad and fleshy from the base of the lower jaw at the side of the chin, and is inserted into the angle of the mouth. Depressor La / bii Inferio'ris. A small thin muscle which arises from the side and front of the lower jaw at its base, and is in- serted into the greater part of the lower lip. Depressor La / bii Superioris. A muscle situated above the mouth ; it arises from the alveolar processes of the incisor and cuspid teeth, and is inserted into the upper lip and side of the ala of the nose. DEPRESSO'RIUM. An instrument used to guard the dura mater when the skull is cut or sawed through. DEPRIMENS AURICULAE. See Re- trahens Auris. DEPIKRANT. A term applied in Ther- apeutics to medicines which are supposed to purify the fluids of the bodv. DEPURATION. From depurare, to purify. In Pathology, a process for purify- ing the animal economy; also, the clarifica- tion of anything. DEPU'RATORY. Depurato'rious. That which purifies the body, or removes from it morbid humors, whether it be by disease or medicines and diet. DER 209 DES .DERADENI'TIS. From Sep?}, neck adrjv, a gland, and Ms, signifying inflam- mation. Inflammation of the glands of the neck. DERADENON'CUS. Tumors of the glands of the neck. DERBYSHIRE NECK. Bronchocele. Derbyshire Spar. Fluor spar. Spar of of various colors, the large nodules of which are peculiar to Derbyshire, and are beauti- fully veined. It is found in some places in cubic crystals of a pale sea-green color. It consists of fluorine and calcium. DERIVATION. Derwatio; from de- rivo, to drain off. The drawing away of any morbid vital action from its original seat to a less important part, by exciting irritation or inflammation in it, by the ap- plication of some local stimulant. DERIVATIVE. That which procures a derivation. A revulsive medicinal agent. DERMA. Deris. The cutis or skin. DERMAD. Dermal aspect; aspect to- ward the skin. DERMAL. Relating to the skin. Dermal Aspect. An aspect towards the skin or external surface. DERMATAL/GIA. Dermatodynia. From depfia, the skin, and ahyoq, pain. Pain in the skin. Cutaneous neuralgia. DERMATAGRA. From de Pf ia, and aypa, a seizure. Pellagra. DERMATPTIS. Dermatis. Erysipela- tous inflammation. DERMATOCHOLOSIS. Icterus. DER'MATOID. Dermatoi'des; from dep{j,a, the skin, and etdog, form. Resem- bling the skin. Applied to tissues which resemble the skin. DERMATOLOGY. Dermaiolog'ia; from dep/ia, the skin, and loyog, a discourse. A treatise on the skin. DERMATOL'YSIS. From Sepfia, and Ivo), to loosen. Cutis pendula. Hypertrophy of the skin characterized by great extension of this organ, whereby it hangs in large loose folds or in pendulous masses. DERMATOPHY'MA. A tumefaction of the skin. DERMATORRHA'GIA. A discharge of blood from the skin. DERMOG'RAPHY. Dermograph'ia; from depjua, the skin, and ypatpu, I describe. A description of the skin. DERMOH^E'MIA. From 6e Pf ia, and aifia, blood. Hyperemia, or excessive vas- cularity of the skin. DER'MOID. Dermatoid. DERMOL'OGY. Dermatology. DERMOT'OMY. Dermolom'ia; from Sepfia. the skin, repveiv, to cut. The dis- section of the skin. DEROSNE'S SALT. A crystalline sub- stance obtained by treating opium with ether. DERTRON. The omentum, peritone- um, or small intestines. DESCEN'DENS NONI. The descend- ing cervical branch of the ninth pair, or hypoglossal nerves. DESCENSUS. A term sometimes ap- plied in Pharmacy to distillation, when the fire is applied at the top and sides of the vessel, while the orifice is at the bottom. DESCENSO'RIUM. A furnace in which the distillation is performed by descent. DESICCATION. Desicca'tio; from de- sicco, to dry up. The drying up of any- thing moist; the act of making dry. DESIC'CATIVE. Desiccativus; from de- sicco, to dry up. Medicines possessed of drying properties, used for drying up ulcers. DESIPIEN'TIA. Delirium. DES'MA. From dea/iog, a ligament. A ligament or bandage. DESMATUR'GIA. Bandaging. DESMFTIS. Inflammation of ligaments. DESMOCHAUNO'SIS. From deofioQ, a ligament, and x avvuaL Si relaxation. Relax- ation of an articular ligament. DESMODYN'IA. Pain in the ligaments. DESMOG'RAPHY. Desmograph'ia; from 6ea/LLO£, a ligament, and ypa^tj, a de- scription. A description of the ligaments. DESMOID TISSUE. Ligamentous tis- sue. This tissue has a close resemblance to the cellular, and in some places is con- tinuous with it. It constitutes aponeuroses and ligamentous membranes, and consists of condensed cellular tissue. DESMOL'OGY. Desmolog'ia; from 6ea- /LLog, a ligament, and loyog, a discourse. A treatise on the ligaments. DESMOPH'LOGY. Desmoplilog'ia; from dea/iog, a ligament, and fyhoyeoq, in- flamed Inflammation of the ligaments. DESMORRHEX'IS. From Sea^ng, a 14 DET 210 DIA ligament, and pqi-ie, rupture. Rupture of a ligament. DESMOS. A ligament. DESMOT'OMY. Desmotom'ia; from 6ecp.oc, a ligament, and re/nveiv, to cut. Dis- section of the ligaments. ^DESPUMA'TION. Despuma'tio; from despumo, to clarify. Applied in Pharmacy to the clarification of a fluid by separating from it the scum and other impurities. DESQUAMATION. Vesquama'tio ; from desquamare, to scale off. The sep- aration of scales, of a greater or less size, from the skin. DESTRUCTIVE DISTILLATION. Distillation of organic bodies at a red heat, whereby they are disorganized and yield their volatile empyreumatic products. DESUDA / T10. From desudo, to sweat much. Profuse and excessive sweating. Applied also to a miliary eruption with which children are sometimes affected. DETEN'TIA. Deten'tio. Catalepsy. DETERMENTS. From detergere, to cleanse. Medicines which cleanse foul ul- cers, wounds, &c. DETERMINATION. In Pathology the afflux of blood or other humors in a part, causing congestion. DETERSIVE. Detergent. DETONATION. Detonatio. Explo- sion; the report which accompanies the chemical combinations or decomposition of certain bodies. Sudden explosion. Detonating Powder. Fulminating mer- cury and silver, and other compounds which explode suddenly on being struck or heated. They are used for igniting powder in per- cussion locks. DETRACTOR. From detraho, to draw. Applied to muscles which draw the parts to which they are attached from some other part. DE'TRAHENS. Detractor. Detrahens Quadra / tus. Platysma my- oides. DETRFTUS. From deterere, to bruise or wear out. The inorganic remains of a disorganized organic texture. DETRUNCA'TION. Detninca'tio; from de, from, and truncus, the body or trunk. In Obstetric Surgery, the separation of the head from the trunk or body of the foetus. DETRUSOR UBLI'NM. From detru- dere, to thrust out. The muscular coat of the bladder, which, by contracting, causes the expulsion of the urine. DEURENS FEBRIS. Causus. Ardent fever. DEUTERFA. Detention of the secun- dines. Also, old name for a weak or inferior wine. DEUTERION. The secundines. DEUTEROPATHFA. Morbus secon- darius; from devrepog , the second, and -adog, disease. A sympathetic affection, or secon- dary disease. DEUTO. From devrepog, second. A prefix, denoting two, twice, or double, as deutoxide, having two equivalents of oxy- gen. The second oxide. DEUTOX'IDE See Deuto. DEVALGA'TUS. Bow-legged. DEVELOPMENT. In Physiology, in- crease; growth. DEVIATION. Devia'tio; from de, from, and via, the way. Vicious curvature of the spine, or other bones ; a faulty direc- tion or position of one or more teeth, &c. • DEVONSHIRE COLIC. Painters' col- ic ; a species of colic occasioned by the in- troduction of lead into the system. DEW. The deposition of water from the atmosphere on the surface of the earth from cold. Dewberry. The fruit of a species of brier belonging to the genus Rubus. Astrin- gent Dose of the bark of the root, gr. x to xx. Dew Point. The temperature of the at- mosphere at which its moisture begins to be deposited. " DEX'OCARD'IA. From &£«*, right, and napcia, the heart. The beating of the heart on the right side, as in pleurisy and pneumothorax. DEXTRINE. From dexter, right- hauded; so called from its possessing the power of reflecting the rays in the polari- zation of light toward the right hand. A gummv substance obtained from starch. It also exists abundantly in plants. DI. A prefix from dig, twice, used in anatomy, chemistry, &c. Hence digastri- cus, dioxide, dichloride, &c. DIA. A prefix from Sta, through. In Composition, extension, perversion, separa- tion. It was anciently used to signify the DIA 211 DIA presence of an ingredient before which it was written, as diacydonium, a medicine containing the quince, &c. DIABETES. From dm, through, and fiaiva), I pass. A disease attended by im- moderate secretion of urine, excessive thirst, and gradual emaciation. It is divided into three species: 1. Diabetes insipidus, char- acterized by a superabundant discharge of limpid urine, having the usual urinary taste. 2. Diabetes mellitus, in which there is an excessive secretion of urine, of a sweetish taste, and containing a considerable quantity of saccharine matter. 3. Diabetes chylosus, in which there is a copious secretion of urine of a whitish color. DIABETIC SUGAR. The sweet prin- ciple of diabetic urine. DIABRO'SIS. Corrosion: the action of substances which occupy an intermediate rank between escharotics and caustics. PI ACATHOI/ICON. DiacathoVicum ; from Sia, and Kad-olitcoc;, universal, so called from its general usefulness. A purgative electuary, composed of senna leaves, the pulp of cassia, root of polypody, tamariuds, rhubarb, violets, aniseed, sweet fennel, licor- ice and sugar. DIACAIFSIS. From diaKavo), I burn. Excessive heat. DIACAUS'TIC. Diacaust'icus. Caus- tic by refraction, as a double convex lens, or, as it is sometimes called, a burning-glass. DIACETATE OF COPPER. Verdigris. DIACHALA'SIS. Fracture of the skull or opening of its sutures. DIACHALCIT'EOS. Diachalci'tis'; from 6ta, and nal/ccric;, chalcitis or calcothar. A plaster consisting of a mixture of oil and calcothar. DIACHORE'MA. Diacliore'sis. Ex- crements, especially faeces. DIACHRFSIS. Inunction. DIACITYLON. Diach'ylum; from diet, and kvIoq, juice : i. e., composed of juices. Formerly an emollient plaster made of cer- tain juices, but at present the term is only applied to the emplastrum plitmbi, or lead plaster. Diachylon cum Gummi. Yellow diachy- lon. Gum diachylon. Diachylon Simplex. The emplastrum plumbi. DIACHYT'ICA. Discutients. DIACINE / MA. From dm, and kiveu, I move. A subluxation. DIACLYS / MA. From Smuto'to, to wash out. A gargle ; a mouth-wash. DIA / COPE. Diacom'ma ; from dca, through, and kotttj, a stroke. In Surgery, a fracture or fissure of a cranial bone ; a deep wound or cut. DIACRANIAN. From dm, separation, and upaviov, the skull. A term sometimes applied in Anatomy to the lower jaw, be- cause it is merely connected with the skull by a loose articulation. DIA'CRISES. From dm, and icptva, I separate. A class of diseases characterized by a vitiated state of the secretions. DIACRISIS. From dm, and npicig, judg- ment. Diagnosis. DIADERMIATRFA. From dm, deppa, the skin, and mrpem, healing. The ender- mic method of treating diseases. See En- dermic. DIADEX / IS. From dtadexo/icu, I trans- fer. I succeed to. The transformation of one disease into another of a different char- acter and seat. DIADO'SIS. Amdtdopcu, to distribute. Distribution of nutritive matter throughout the whole body ; nutrition ; the cessation of disease. DIvER'ESIS. From dmipeu, I divide or separate. A solution of continuity, as a wound or ulcer, or as in the case of a sur- gical operation, consisting in the division of some part of the body. DIJERET'ICUS. From Siaipeu, I divide. Caustic ; escharotic. DliETA. Diastema; from dmiTaa> t I nourish. Diet; aliment. DIAGNOSIS. From dia, and yivoeico f I . know. The art of discriminating a disease by its symptoms, and one disease from an- other. Diagnosis, Differential. Determining the distinguishing features of a disease, when nearly the same symptoms belong to two different classes of disease, as rheuma- tism, gout, &c. DIAGNOSTIC. A pathognomonic sign,, or symptom, which is characteristic of a disease. DIAG / ONAL. Am, through, and yovta, an angle. A right line drawn between any two opposite angles of a four-sided figure* DIA 212 DIA DIAHYDRIC. A terra invented by Dr. C. J. B. Williams, to express the peculiar sign of percussing through a liquid, as when in examination of the liver, an effusion sep- arates that organ from the walls of the ab- domen. DIALEM'MA. Intermission of fever. DIAI/LAGE. A mineral of a foliated structure, easily separated in one direction. DIALU'RIC ACID. An acid obtained by the action of hydrosulphuric acid on al- loxantin in solution. DIAL/Y$IS. From Sia/.vu, to dissolve. Weakness of the limbs. D1AMAGNETIC. A term invented by Faraday to express those bodies which are repelled by both poles of the magnet, so that, when suspended over a horseshoe mag- net, they take a position at right angles to the line joining the poles. DIAMASTE'MA. Masticatory. DIAMETER. Aia, through, and /nerpov, a measure. A right line drawn through the centre of a circle. The central and shortest dimension of a sphere or cylinder. DFAMOND. Ad' am as : from a, priv., and cauao, I conquer, from its extreme hard- ness. Pure or crystallized carbon ; the most valuable of precious stones, and the hardest known substance. It was formerly supposed to possess valuable medicinal virtues. DIAMOTO'SIS. From fioroc, charpie, lint. The introduction of lint into a wound or ulcer. DIAX / A. Old name for silver. DIANANCAS'MOS. Dianancas'mus ; from 6ia, and ava-yKafa, I force. The reduc- tion of a dislocated or fractured limb. DIAN / DRIA. Dian'drous; from dig, twice, and avrjp, a man. A class of plants with two stamens, the second in the Lin- nsean svstem. DIAN'THUS CARYOPHYI/LUS. The clove pink. DIAPAI/MA, A plaster composed of litharge, olive oil, axunge, water, sulphate of zinc, and white wax, which, when mixed with a fourth of its weight of olive oil, forms the cerate of diapalma. DIAPAS'MA. From diaTraaaeiv, to sprinkle. A medicine reduced to powder and spriukled over the whole or some part of the body. DIAPEDE'SIS. From dia-qdau, I leap through. Transudation or escape of blood through the coats of the vessels, skin, or any membrane. DIAPHANOUS. Diaphano'sus ; from dia, through, and pcuvu, to shine. Trans- parent. In Anatomy, applied to delicate serous membranes, as the arachnoid. DIAPHORESIS. From diaoopeu, I con- vey, I dissipate. A perspiration more pro- fuse than natural. DIAPHORETIC. Medicines which ex- cite perspiration. DFAPHRAGM. From dmopaoau, to separate by a partition. The midriff. A thin, almost circular muscle, tendinous in the centre, which separates the thorax from the abdomen. DIAPHRAG'MA. Diaphragm. Diaphragma Cerebri. The tentorium. Diaphragma Narifil The septum uarium. DIAPHRAGMAI/GIA. Pain in the diaphragm. DIAPHRAGMATIC. DiophragmatV- cus. Belonging to the diaphragm ; applied to several vessels and nerves. Diaphragmatic Arteries. Phrenic ar- teries. The arteries of the diaphragm. Diaphragmatic Hernia. Protrusion of some of the abdominal viscera through a rupture of the diaphragm. Diaphragmatic Nerves. See Phrenic Nerves. Diaphragmatic Plex / uses. These are two in number — one situated on the right, and the other on the left side of the dia- phragm. Diaphragmatic Rixg. An aperture through the diaphragm giving passage to the vena cava ascendens. DIAPHRAGMATFTTS. Inflammation of the diaphragm. DIAPHRAGMAT'OCELE. Diaphrag- ma, and Krfi.T), a tumor. Hernia or tumor, from some portion of the viscera escaping through the diaphragm. DIAPH'THORA. From dta, and odet- petv, to corrupt. Corruption of any part. DIAPH'YSIS. From aaovw. I rise be- tween. An interspace. Anything which separates two bodies. It is sometimes ap- plied to the middle part of a long bone, and to the crucial ligaments. DIAPLAS'MA. From cia-lacou, to an- DIA 213 DIA oint. The application of an unction to the whole or any part of the body. DIAP / NOE. From dianveo, to breathe through. Gentle perspiration. DIAP'NOIC. That which promotes gentle perspiration. DLAPOPH'YSIS. A name given by Owen to the homologue of the upper trans verse process of a vertebra. DIAPYE'MA. Diapye'sis; from 6ia, and ttvov, pus. Suppuration. DIAPYET'IC. Diapyeti'cus; from dta, and 7vvr]fj.a, a suppuration. Medicines which promote suppuration. DIARH^'MIA. From dm, through, pew, I flow, and aifia, blood. Thinness of the blood from deficiency of the globules, and, as a consequence, transudation of it through the coats of the vessels. DIxVRIUS. Lasting one day ; epheme- ral. Applied to fevers. DIARRHAGE. A fracture. DIARRHCE'A. From 6ia, through, and peio, I flow. Purging, looseness of the bowels, frequent liquid alvine evacuations, usually attended with slight griping pains, but ordinarily without any fever. There are several varieties of diarrhoea, as the bilious, serous, mucous, &c. Diarrhoea Ai/ba. Diarrhoea coeliaca. Diarrhoea with white milky evacuations. Diarrhoea Carno / sa. Dysentery in which the discharges resemble pieces of flesh. Diarrhoea Choler'ica. A diarrhoea in which the alvine evacuations are loose, copi- ous, and of a yellow color. Diarrhoea Chylo / sa. Cceliac passion; cceliacflnx. Chylous diarrhoea. Diarrhoea Hepat'ica. A diarrhoea at- tended with copious bilious evacuations. Diarrhoea Serosa. A diarrhoea in which the alvine evacuations are of a watery or serous character. Diarrhoea Urino'sa. Diabetes. Diarrhoea Vermino'sa. A diarrhoea caused by the presence of worms in the in- testines, especially in the rectum. DIARTHRO'DIAL. Relating to diar- throsis. DIARTHRO'SIS. From diaptipoo, I articulate. A movable articulation of bones, in which there are five species ; namely, en- arthrosis, arthrodia, ginglymus, trochoides, and amphiarthrosis. DIASCOR/DIUM. From 6ia, and aop- 6lov, the water germander; so called be- cause scordium enters into its composition. An electuary. DIASOS'TIC. Prophylactic. DIASPHYX'IS. The pulse. DIASTALT'IC. A term applied by Dr. Marshall Hall to the reflex action of the excito-motory system of nerves. DIASTAS^E'MIA. From diacTamg, sep- aration, and aifia, blood. Disorganization of the globules of the blood, and separation of the fibrin and albumen from the coloring matter. DIASTASE. A vegetable principle hav- ing the property of converting starch into dextrine and grape sugar. It is the princi- pal agent in the germination of seeds, and is produced when they sprout. DIASTASIS. From dm, and larvy-i, to place, separation, distance. Separation of bones and cartilages from each other, as of those of the cranium in some cases of hy- drocephalus, &c. DIASTEMA. A term applied in Zo- ology, by Uliger, to the interspace which exists in most mammiferous animals be- tween the canine and premolar teeth. DIASTEMATELYT'RIA. A congeni- tal defect consisting in a longitudinal divis- ion of the vagina. DIASTEMATOCHEFLIA. From dias- tema, and x £l ^°C, the lip. Congenital devia- tion consisting in a longitudinal division of the lip DIASTEMATOGLOS'SIA. From dias- tema, and ylucaa, tongue. A congenital longitudinal division of the tongue. DIASTEMATOGNA'THIA. From di- astema, and yva&og, jaw. An organic longi- tudinal division of the jaw. DIASTEMATORHI'NIA. A congeni- tal longitudinal division of the nose. DIASTEMATOSTAPHYI/IA. A con- genital longitudinal division of the uvula. DIASTOLE. From dmare'Alu, I send, I dilate, I open. Dilatation of the heart and arteries when the blood enters them. It is immediately followed by contraction, which sends forth the blood, and this latter move- ment is called systole. DIASTOLIC. Relating to diastole, as the diastolic action of the heart. DIASTO MO'TRIS. From dmaro^oo), I DIC 214 DIF dilate, an aperture. Any dilating instru- ment, as a speculum for the mouth, &c. DIASTREM'MA. Distortion or sprain. DIAS'TROPHE. Diastremma. DIAT / ASIS. From Siareivu, I distend. The reduction of a fractured limb by exten- sion and counter-extension. DIATHER'MANOUS. Free permea- bility to heat. DIATHERMAN'SIS. The transit of the rays of heat. DIATHESIS. From cian^ui, I dis- pose. Disposition, constitution; predisposi- tion to certain diseases. The most common diatheses are the scrofulous, scorbutic, rheu- matic, gouty, cancerous, calculous, and nerv- ous. DIATHETIC. Belonging to diathesis. DIAT'RITOS. From cia, and rpeig, three. Diet of three days. The plan pur- sued by the methodic physicians in the treatment of disease. DIATRFUM. Old name for a medicine composed of three ingredients. DIAVOLET'TI. Diavoli'ni. Aphro- disiac lozenges made of cocoa and the most pungent aromatics. DIAZO'MA. Diazos'ma. The dia- phragm. DIAZOS'TER. From SiaZwwfu, I sur- round. The twelfth vertebra of ihe back, because it corresponds to the girdle. DICEN'TRA CANADENSIS. Squir- rel corn; colic weed. A plant of the order Fumariacece, indigenous in the Northern States. It has been used in syphilis and gonorrhoea. DICEPH'ALUS. From 61, double, and Ketia'/.Ti, head. Having two heads. DICERAS RUDE. An intestinal worm. DICHASTE'RES. From 6i X a;o), to di- vide. Old name for incisors. DFCHROISM. Aig, twice, and X poa, color. The property by which some min- erals exhibit different colors, according to the direction in which the rays of light pass through them. DICHOPHY'IA. From 6i X a, double, and rm, about an inch in length, and nearly an inch in width, sometimes found in the gall ducts of man. DISTORTION. Distor'sio; from dis- torquere, to wrest aside. Deformity of parts, as a preternatural curvature of a bone, curved spine, &c. Also, contraction of the muscles, as in strabismus. DISTORTOR ORIS. The zygomaticus minor. DIS'TRIX. From dig, double, V& tn © hair. A morbid condition of the hair, char- acterized by splitting at their extremities. DlS'TYLE. Disty'his ; from dig, double, and otv?,oc, a style. A term applied in Botany to plants which have two styles. DITRACHYC'ERAS. From dig, two, rpaxvg, rough, and icepag, horn. A genus of intestinal worms. The Ditrachyceras rudis, or Dicer as rude. DITTAN'DER. Pepper-wort; a spe- cies of Lepidum. It has a hot, biting taste. DIT'TANY. Dictam'nus al'bus. A plant of the genus Dictamnus, the root of which was formerly used as a tonic. Dittany, American. A plant of the genus Cunila. See Cunila Mariana. Dittany of Crete. A plant of the ge- nus Origanum. DIURESIS. From dta, through or by, and ovpeu. I pass the urine. Abundant ex- cretion of urine. DIURET / IC. Diuret'icus. A medicine which increases the secretion of urine. DIVARICATION. The separation of two things previously united. DIVARICATE. Standing wide apart; to diverge at an obtuse angle, as do some- times the roots of a molar tooth. DIVEL/LENT. Pis, apart, and vello, to pluck. Separating, or pulling asunder. DIVERGENT. Diverging, receding from each other. DIVERSO'RIUM CHYLI. The recep- taculum chyli. DIVERTICULUM, A turning; from divertere, to turn aside. Any receptacle capable of holding a more than ordinary quantity of blood, for temporary purposes, when the circulation is obstructed, serves as a diverticulum. Also, a hollow append- age attached to. and communicating with, the intestinal canal, or any hole to get out of, or by-passage. DOC 221 DOL Diverticulum Chyli. The receptacu- lum chyli. Diverticulum Nuc / kit. An opening on each side through which the round ligament of the uterus passes. Diverticulum Pharyn'gis. Pharyn- gocele. DIVID / ING. That which separates. Dividing Bandage. A bandage used to keep parts separated from each other, and preventing unnatural adhesions. DIVISIBILITY. The property which all bodies possess of being separated into parts. DIVUI/SIO. In Surgery, a rupture or laceration caused by external violence. Divul / sio Uri'njs. Urine which has a cloudy appearance. DIXON'S ANTI-BILIOUS PILLS. Pills composed of aloes, scammony, rhu- barb, and emetic tartar. DIZZINESS. Vertigo. DOBEREINER'S LAMP. A means of obtaining an instantaneous light, by turning a stream of hydrogen gas from a reservoir upon spongy platina, by which the metal instantly becomes red-hot and sets fire to the gas. DuCH'ME. A Greek measure equal to the breadth of about four fingers. DOCIMA / SIA. From SoKijiafa. to exam- ine. Applied in Mineralogy to the art of examining minerals, for the purpose of dis- covering what metals, &c, they contain. DociMASiA Pulmo / nium. The exami nation of the respiratory organs of a new- born child for the purpose of ascertaining whether it had breathed after birth. DOCIMAS'TIC ART. From eonifiafa, I prove. The art of assaying minerals or ores, with a view of ascertaining the quan- tity of metal they contain. DOCK. The popular name of a species of large-leaved Rumex. DOCTOR. From doctus, learned. A title commonly applied to a practitioner of medicine, but properly confined to one who has received from a regularly chartered in- stitution or college the degree of doctor of medicine, or dental surgery. The power for conferring the latter degree was first in- vested in the Baltimore College of Dental Surgery, by the legislature of the State of Maryland, in an act of incorporation, grant- ed in 18+0, and conferred for the first time at the first annual commencement of this institution, on the 9th of March, 18 H. DOCTRIN E. In Medicine, the theory or principles of any medicinal sect, teacher, or writer. DOD'DER A creeping, parasitical plant of the genus Cuscuta. It is almost destitute of leaves, fixing itself to some other plant, as hops, flax, and particularly the nettle, and receiving its nourishment from the plant which supports it. Dodder of Thyme. Cuscuta epithymum. A parasitical plant, possessing a strong, un- pleasant smell and pungent taste. DODECADAC /r rYLON. Duodenum. DODECAHEDRON. A solid of twelve sides; a form frequently met with in crys- tals. DOEGLIC ACID. Doeglinic acid. An acid found in train oil, as oleic acid is in olive oil. It is the oxide of a radical, Doe- DOG-CHOKE. Cynanche. Dog-Days. Dies canicida'res. The days comprised between the 24th of July and the 28d of August are so called, because the dog-star, Sirius, rises and sets at this time with the sun. Dog-Rose. The wild brier, Rosa canina. The fruit, called hips, has a sourish taste. Dog-stone. A plant belonging to the genus Orchis. Dog-wood. A species of cornus or cor- nelian cherry. DOG'MATISTS. From 6o 7 fia, a doc- trine. A set of ancient physicians, who founded their practice upon conclusions drawn from certain theoretical inferences. DOL'ERITE. A trap rock composed of augite and feldspar. DO'LI CA'PAX. In medical jurispru- dence, a criminal for whom insanity is pleaded as an excuse for the crime com- mitted. DOL'ICHOS. From So?u X oc, long. A genus of plants of the leguminous family, including a number of species. Dolichos Pru / riens. Cowhage. The pods are covered with stiff hairs, called dolichi pubes, which are used in medicine as an anthelmintic. When applied to the skin, they excite an intolerable prurient sensation. DOE 999 DOT DOI/OMITE A rnagnesian limestone. DO'LOR. Paia. Do'lor Den'tium. Pain in the teeth. See Odontalgia. DOMBE'YA TURPENTINE. A strong- scented whitish turpentine, obtained from the Dombeya excelsa of Chili. DOMESTIC MEDICINE. Medicine as practised by unprofessional individuals in their own families. Also, applied to trea- tises written for the purpose of enabling unprofessional persons to treat diseases, when the services of a regular physician cannot be procured. DONOVANS SOLUTION. Liquor Arsenici et Hydrargyri lodidi. Composed of iodide of arsenic, red iodide of mercury, and water. Used as an alterative in skin diseases. Dose is from gtt. v to xx, three times a day, in water. DORE / MA. A genus of plants of the order Apiaceoz. Dorema Ammonia'cum. The plant which yields ammoniaeum. DORON'ICUM. A genus of plants of the order Compositce. Doronicum German'icum. Ar'nica mon- ta / ?ia. Leopard's bane. Doronicum Pardalian'ches. Doroni- cum roma'num. Roman leopard's bane. DORSAD. Toward the back. DOR'SAL. Dorsa'Ks ; from dorsum, the back. Eelating to the back, or the back of any organ. DORSE. A fish which yields some por- tion of the cod-liver oil. The Gadus calla- Has. DOR'SO-COSTA'LIS. The serratus posticus superior muscle. Dorso-Supra Acromia / nus. The trape- zius muscle. Dorso-Trachealia'nus. The splenius colli muscle. DORSTE'NIA. A genus of plants of the order Vrticacece. Dorstema Brasilien^ts. Caa-apia. The root is emetic and antidiarrhceic. Dorstexia Contrater'va. Contra- yerva. The root has a pleasant aromatic- smell, and a rough, bitter, and penetrating taste. DOR / SUM. From deorsum, downward, because it may be bent downward. The back. The posterior part of the trunk. The vertebral column. The back of any part, as the dorsum pedis, back of the foot ; dor- sum manus, back of the hand, &c. DO / SAGE. A term applied in Chem- istry to a plan of analysis in which the re- agent is added in measured quantities, from a graduated tube, to a measured and weighed solution of the assay. DOSE. Dosis ; from dicuui, to give. The amount of medicine to be given at one time producing a desired effect. The dose for an infant one year old should not be more than one-twelfth part of a dose for a grown person ; for a child three years of age, one sixth ; for one seven years old, one- j third ; and for one of twelve years, one half ; as much as for an adult. Women usually i require smaller doses than men. DO'SIS. A dose. DOS / SIL. In Surgery, a pledget of lint | made up in a cylindrical form, to be applied to a wound or bleeding surface. DOTAGE. Feebleness or imbecility of ' mind from old age ; dementia. DOTHINENTERIT1S. From 6o$itjv. a boil, and evrepov, an intestiue. Inflam- mation and enlargement of the glands of Peyer and Brunner, and supposed by Bre- ton neau to be the cause of the symptoms which constitute a large class of fevers. DOTTED. Puncta'tus. In Botany, sprinkled with hollow dots or points. DOUBLE HEARING. Sounds heard doubly. Double Touch. Mode of exploration, I in which the fore6nger is introduced into the i rectum and the thumb into the vagina. Double Wedge. An instrument in- i vented by Dr. Elliott, of Montreal, for re- I moving an artificial crown from the root of ! a tooth upon which it has been set. DOUCHE. A French word applied in i TJierapeutics to a dash of water, or other fluid, upon any part of the body. A stream i or jet of water poured on the body, or fall- | ing from a height upon a part. Douches of I air are sometimes used in cases of obstrue- j tion of the Eustachian tube by mucus. They j are forced by an air-press. DOULEUR. Pain. Douleur des Dents. Pain in the teeth. | See Odontalgia. DOVE'S FOOT. The popular name of a species of Geranium. DBA 223 DEI DOVER'S POWDER. Pulvis ipecac- uanhce compositns, or et opii. Powder of ipecacuanha, opium, and sulphate of potassa. Take of ipecacuanha, in fine powder, opium, dried and in fine powder, each sixty grains; sulphate of potassa, a troy ounce. Rub them together into a very fine powder. Diapho- retic. Dose, gr. v to gr. xij DRA'BA. A genus of plants of the or- der Cniciferce. Draba Ver'na. Ero'phila vulga'ris. Common whitlow grass. The seed is hot and stimulating. DRAC^E'NA. A genus of plants of the order Smilaceas. Dracaena Dra'co. The dragon tree. The inspissated juice constitutes the purest variety of dragon's blood. Drac^exa Reflex'a. The young shoots of this species are said to possess emmen- agogue properties. Dracaena Termina / lis. The root of this species is said to be antidysenteric. DRACHM. Drachma. An eighth of an ounce, or 60 grains. DRACINE. A precipitate obtained from a concentrated alcoholic solution of dragon's blood. DRACO. Apanuv, the dragon. A fabu- lous serpent with wings and feet. Draco Mitigatus. chloride of mercury. Draco Sylves'tris. bastard pellitory. DRACOCEPHALUM CANARIEN'SE. Turkey balsam ; Canary balsam ; balm of Gilead tree. DRACO'NIS SANGUIS. Dragon's blood. DRACON'TIUM. A genus of plants of the order Aroidece. Dracontium Foz/tidum. Skunk cab- bage. A plant which exhales a very fetid odor. The powder of the root is given as an antispasmodic. Dose, gr. x to xx. DRACUN'CULUS. Dracontium. Also, the Guinea worm, which breeds under the skin among the natives of Guinea. DRAGACAN'THA. Dragant gum. Dragantin. Tragacanth gum. DRAGAN'TIN. A mucilage obtained from gum tragacanth. DRAGON. The popular name of a genus of saurian reptiles ; also, of certain Calomel ; proto- Sneezewort, or plants of the genus Dracontium. Also, applied to cataract or opaque spots on the cornea. Dragon's Blood. Sanguis draconis. A concrete resinous substance, of a blood- red color, used in varnishes, and sometimes in dentifrices. Dragon Fly. A neuropterous insect of the genus Agrion or Libellula. Dragon Root. Indian turnip ; the pop- ular name of a plant of the genus Arum. Dragon's Wort. The popular name of Arum Dracuncidus. DRA'KENA. See Dorstenia Contra- yerva. DRASTIC. Dras'ticus ; cenoVic ; from dpaco, I operate strongly. Generally ap- plied to purgatives which operate power- fully. DRAUGHT. In Therapeutics, a suffi- cient quantity of fluid medicine for a dose. DRAW-BENCH. A bench for drawing wire, so constructed as to confine a wire plate at one end, with a roller and windlass at the other for drawing the wire through the plate. It is used in the mechanical laboratory of the dentist. DREAM. Somnium. Imaginary transac- tions which occupy the mind during sleep. DREGS. Feculence. DRENCH. A purgative draught for a horse. DRESS / ER. A surgeon's assistant, who applies the dressings in an hospital. DRESSING. The proper application of bandages, plasters, and apparatus to a diseased part. DRESSINGS. The bandages, plasters, and apparatus used in dressing a diseased part. DRILL. A small steel instrument, either with a flat point or a burr at the end, some- times used by dentists in the removal of caries from a tooth preparatory to filling, and for other purposes. Drill-Bow. A bow and string for rota- ting a drill-stock, which it does by passing the string around it, and moving it back- ward and forward. Drill, Burr. An instrument used in Dental Surgery for the removal of caries of the teeth, and enlarging the canal in the root of a tooth preparatory to the applica- tion of an artificial crown. It consists of a DRO 224 DUA small steel stem attached to a handle, or so constructed as to be introduced into a socket- handle, or socket of a drill-stock, with a bulb at the other extremity, with a surface like that of a coarse single-cut file. Drill, Flat. A small steel stem, fitted to a socket, in a handle or drill-stock, with the other extremity flattened and present- ing a sharp triangular-shaped point. Drill-Stock. An instrument for hold- ing and turning a drill, moved either with the thumb and finger or with a handle. DRIMYPHA'GIA. From dpifipg, acrid, and oayu, I eat. An exciting diet. DRIMYS WINTER!. Wintera aro- matica ; winter bark tree. DRINK. Every liquid introduced into the stomach for the purpose of allaying thirst, diluting the alimentary mass, and re- pairing the losses which the fluids of the body are constantly experiencing. DRIVELLING. An involuntary flow of saliva from the mouth, as in infancy, old age, and in idiots. DRO'MA. An old plaster. DROP. Gutia. So much of any liquid as coheres together when poured slowly from a vessel. It varies, however, in volume and weight, according to the nature of the liquid and the size of the orifice or mouth of the vessel from which it is poured. In Pharmacy it is generally estimated at one grain. DROPS. Certain liquid medicines. Drops, Anodyne. A solution of acetate of morphia. DROPSICAL. Affected with dropsy. DROPSY. From vdop, water, and cjib, the look or aspect. An effusion of serum into the cellular tissue or into any of the natural cavities of the body. It is desig- nated according to the part affected by it. See Hydrops. Dropsy of the Belly. See Ascites. Dropsy, Cardiac. Hy'drops Cardi'- acus. Dropsy from disease of the heart. Dropsy of the Cellular Membrane. See Anasarca, Hydrothorax, &c. Dropsy of the Chest. Hydrothorax. Dropsy of the Eye. Hydrophthalmia. Dropsy, Fibrinous. Dropsy in which the effused fluid contains fibrin. Dropsy, Hepat'ic. Hy'drops hepat'i- cus. Dropsy from disease of the liver. Dropsy of the Pericardium. Hydro- pericardium. Dropsy, Renal. Hy'drops rena'lis. Dropsy from disease of the kidney. Dropsy of the Skin. Anasarca. Dropsy of the Spine. Hydro rachitis. Dropsy of the Testicles Hydrocele. Dropsy of the Uterus. Hydrometra. DROSE'RA. A genus of plants of the order Droseracece. Drose'ra Rotundtfo / lia. The sun-dew, a plant which has a bitter, acrid, and caustic taste. DROSOMETER. An instrument for ascertaining the amount of dew falling at any jjiven time. DRUG. A simple medicine. DRUGGIST. One who sells drugs. DRUM OF THE EAR. The tympanum. DRUNKENNESS. Intoxication; ebri- ety. '1 he habitual use of intoxicating liquors is attended by loss of appetite, rest- lessness, tremulous motion, delirium tre- mens, &c. DRUPACEOUS. Resembling a drupe. DRUPE. In Botany, a pulpy fruit, with- out an outer covering or valve, as the peach, apricot, plum, cherry, &c, usually called stone-fruit. DRY CUPPING. The application of the cupping-glass without previous scarifi- cation. Dry Pile. A galvanic apparatus, with pairs of metallic plates, separated by layers of farinaceous paste mixed with common salt. Dry Rot. A disease which sometimes attacks wood, rendering it brittle and de- stroying the cohesion of its particles. DRYOBAI/ANOPS. A genus of large trees of the family Dipteracece. Dryobalanops Cam'phora. The name of a tree of the Eastern Archipelago, wkuh, by incision, yields the camphor oil, and the trunks often contain the concrete camphor. DUALITY'. The quality of being double. Applied in Physiology to a theory that the two hemispheres of the brain are distinct and independent organs. This is spoken of as the Duality of the Mind, as if each indi- vidual actually possessed two distinct minds. DUC 225 DUM DUCK. A water-fowl of the genus Anas. See Anas Domestica. DUCT. See Ductus. DUCTII/ITY. From dnco, I draw. A property possessed by certain bodies, which enables them to be drawn out, or elongated, without causing any interruption in their constituent particles. This property is pe- culiar to some metals, as gold, silver, lead, &c, under all temperatures. Gold may be drawn into wire of only the 4000th part of an inch in diameter, and it may be reduced, by passing it through rollers, to the 8000th part of an inch in thickness. DUCTOR Director. DUC rS, BILIARY. The ductus com munis choledochus. The cystic and the he- patic ducts. Ducts of Bellini. The urinary canals of the kidneys. DUCTUS. A canal or duct. Ductus Aquosi. The lymphatics. Ductus Arteriosus. Canalis arterio- sus. The arterial tube which forms a di- rect communication between the pulmonary artery and the aorta of the foetus. It be- comes obliterated after birth. Ductus Au'ris Palati'nus. The Eus- tachian tube. Ductus Bartholinian'us. From Bar- tholin, its discoverer. The duct of the sub- lingual gland. Ductus Bellin'iani. Uriniferous tubes. Ductus Bil / iaris. Biliary duct. Ductus Communis Choled / ochus. The common excretory duct of the liver and gall-bladder. Ductus Cys / ticus. The cystic duct. Ductus Ejaculato / rius. A duct with- in the prostate gland, opening into the urethra. Ductus Excreto / rius. An excretory duct. Ductus Hepat'icus. The hepatic duct. Ductus Hygrobleph'ari. Ductus Hy- grophthalmici. The Meibomian glands. Ductus Inciso / rius. A small canal leading from the foramen incisivum into the cavity «of the nares. Ductus Lachryma'lis. The lachrymal duct. Ductus Lactif / eri. The excretory ducts of the glandular substance of the fe- male breasts. Ductus Nasa / lis. The ducts which convey the tears from the lachrymal sac to the nose. Ductus Omphalo Mesenter'icus. Duct leading from the umbilical vesicle to the intestine in the human ovum, and becoming afterwards a constituent of the umbilical cord. Ductus Pancreat'icus. The pancreatic duct. Ductus Rorif'erus. Thoracic duct. Ductus Saliva / lis Inferior. Ductus Whartonianus. The excretory duct of the submaxillary gland. Ductus Saliva / lts Superior. Ductus Stenonius. The excretory duct of the par- otid gland, which opens into the mouth op- posite the upper second molar tooth. Ductus Steno'nis. The Stenonian or parotid duct. Ductus Thoracicus. Thoracic duct. Ductus Umbilica / lis. Umbilical cord. Ductus Urin^e. The ureter. Ductus Veno'sus. Canalis venosus. A venous canal, forming in the foetus a com- munication between the umbilical and left hepatic veins. It becomes obliterated after birth. Ductus Whartonianus, Called so after the name of its discoverer. The excretory duct of the submaxillary gland. Ductus Wirtsungi. The Pancreatic duct. DUEL/LA. Ancient weight of eight scruples. DULCE'DO AMO'RIS. Clitoris. Dulcedo Saturni. White lead. Dulcedo Sputorum. A term applied by Frank to that form of ptyalism in which the saliva has a sweetish or mawkish taste. DULCAMA'RA. From dulcis, sweet, and amarus, bitters. Bittersweet ; woody nightshade. See Solanum Dulcamara. o DULCIFICA'TION, Dulcifica'tio; from dulcis, sweet, and facio, to make. A term applied to the act of mixing mineral acids with alcohol for the purpose of diminishing their caustic and corrosive properties. DUMASINE. An empyreumatic oil ob- tained by rectifying acetone derived from the acetates. DUMBNESS. Aphonia. Inability to utter articulate sounds. 15 DTK 226 DYS DUODENFTIS. Inflammation of the duodenum. DUODENUM. From duodeni, twelve; so called because it was supposed it did not exceed the breadth of twelve fingers. The first part of the intestinal canal. DUO-STERNAL. A name given by Beclard to the second bone of the steruum. DUPLEX. Double; twofold. DUPLICATE. Duplicates. Doubled. DU'PLICATURE. Duplicatura; from duplex, double, twofold. In Anatomy, a reflection of a membrane upon itself. DU'PLUM. The double of anything. DUPUYTREN, COMPRESSOR OF. An instrument for compressing the femoral artery, consisting of a semicircle of steel with a pad at each end, which, acting only on the thigh, does not impede the collateral circulation like the tourniquet. DU'RA MASTER. Dura meninx ; from durus, hard. A thick, semi-transparent, sero- fibrous membrane, of a pearly-white color, which invests the brain, lines the cranium, and contains the spinal marrow. DURA'xMEN. The heart wood of a tree. DURUS. Hard. DUTCH DROPS. A preparation of oil of turpentine, tincture of guaiac, spirits of nitric ether, oil of amber, and oil of cloves. DUTCH GOLD. An alloy of copper and zinc. DUTCH MINERAL. Copper beaten out into very thin leaves. DUTCH PINK. Chalk or whiting, dyed yellow with a decoction of birch leaves, French berries, and alum. DWALE. The deadly nightshade. See Atropa Belladonna. DWARF. Nanus. An animal or plant whose average height is greatly inferior to the species to which it belongs. Dwarf Elder. A plant of the genus Sambucus. See Sambucus Ebulus. DYES. Coloring matters obtained from vegetable substances. DYNAM / IC. Dynamicus ; from 6wa- uic, strength, power. In Biology, that which relates to the vital forces, increased action or force, and used in contradistinc- tion to adynamic. In Pathology, synony- mous with sthenic. DYNAMICS. The science of motion ; or a treatise on the laws and results of mo- tion. DYNAMOMETER. An instrument for measuring the comparative muscular power of man and animals, or of man or animals at different periods, and in different con- ditions. DYS. From 6vc, difficult, faulty. Used as a prefix, and often signifying painful ; in ordinary cases it implies negation, as dys- ecoza, want of hearing. DYSESTHESIA. From 6vc, with dif- ficulty, and acadavofiat, I feel. Diminished sensibility, or abolition of the senses. DYSESTHESIA. A term, in Cullen's Nosology, used to designate an order of dis- eases, the first in the class Debilitates, characterized by an impairment or exten- sion of one or all of the senses. DYSANAGO'GOS. Difficulty of ex- pectoration on account of viscidity of the sputa. DYSANNARRHOPHE'SIS. Dimin- ished absorption. DYSCATABRO'SIS. Difficult degluti- tion. DYSCATAPO'SIS. Difficulty of swal- lowing liquids. DYSCHRGE / A. From 6vc, and xp° ia , color. Morbid change in the color of the skin. DYSCHE'ZIA. Difficult and painful defecation. DYSCINE'SIA. From 6vc, with diffi- culty, and Kivecj, I move. Loss or difficulty of motion, as in the case of rheumatism or paralysis. DYSCOPHO'SIS. From dvg, with dif- ficulty, and noyau, I am deaf. Impairment of the sense of hearing. DYSCO'RIA. From 6vc, and nopr), the pupil. Irregularity of the pupil. DYSCRA / SIA. From dvc, and Kpaaic, temperament. A bad temperament, or habit of body. DYSECCE'A. From dvg, aud anoy, hear- ing. Deafness; hard of hearing. DYSEME'SIA. Painful aud ineffectual efforts at vomiting. DYSENTERY. Dysente'ria; from cvg, with difficulty, and evrepou, intestine. Bloody flux, diarrhoea attended by excretion of blood. Inflammation of the large intestines, fever, and painful tenesmus. The stools DYS 227 DYS are mostly mucus, sometimes streaked with blood, and mixed with hard substances, called scybala. DYSEPQLOT'IC. Dysepulotus ; from Svg, and ettvTioco, to cicatrize. Applied in Pathology to ulcers difficult to be healed. DYSGENESIA. From Svg, and ysvs- cig, generation. Lesion of the functions or organs of generation. DYSGEU'SIA. From Svg, and yivata, taste. A morbid condition, or impairment, of the sense of taste. DYSH^E'MIA. From Svg, and ai/ia, blood. Depraved condition of the blood. DYSH^EMORRHCE'A. From Svg, with difficulty, at/ua, blood, and pecj, to flow. Diffi- culty in the flow of blood. Difficulty in the hemorrhoidal flux. Also, symptoms caused by its diminution or suppression. DYSHAPH'IA. From Svg, and aft?, touch. Impairment of the sense of touch. DYSHFDRIA. From Svg, and tSpog, sweat. Morbid condition of the perspiration. DYSLALIA. From Svg, and lalia, speech. Difficult or indistinct articulation of words. DYSLYSIN. A resin obtained by de- composing choloidic acid with dilute hy- drochloric acid and alcohol. DYSMASE / SIS. From 6vg, and y-aarjaig, mastication Difficult mastication. DYSMENORRHEA. From Svg, and firjvoppoia, the menses. Difficult, or retarded menstruation. Catamenia passed with great local pain, and sometimes with a membran- ous discharge. DYSMNE'SIA. From Svg, bad, and fivrjoig, memory. Impaired or defective memory. DYSO'DIA. AvgoSia, fetor. Diseases attended with fetid emanations. DYSODONTFASIS. From 6vg, with difficulty, and oSovriaotg, dentition. Difficult dentition. DYSO / PIA. From Svg , bad, and oirTOjuac, I see. Defective vision. Inability to see except in an oblique direction. ' DYSOREX'IA. From 6vg, with diffi- culty, and opetjig, appetite. Depraved ap- petite. DYSOS'MIA. From Svg, with diffi- culty, and ocfiT), smell. Diminished sense of smell. DYSOSPHRE'SIA. From Svg, with difficulty, and oa^pz/aig, the sense of smell. An impaired condition of the sense of smell. DYSOSTOSIS. From Svg, and oareov, a bone. A faulty conformation, or diseased condition of bone. DYSPEPSIA. From Svg, with diffi- culty, and 7TETTT0), I concoct. Indigestion. Weak or impaired digestion ; a disease con- sisting, usually, of a want of appetite, eruc- tations, pyrosis, a painful burning sensation and transient distension in the region of the stomach; sometimes accompanied by flatu- lence and frequently by constipation of the bowels or diarrhoea, together with a long train of nervous symptoms and other disa- greeable concomitants. DYSPHAGIA. From Svg, with diffi- culty, and (payo, I eat. Difficult or impeded deglutition. Dysphagia Constric'ta. Dysphagia pharyngeal dysphagia oesophagea. Stric- ture of the oesophagus, or pharynx. DYSPHORIA. From Svg, badly, and G)VT), the voice. Alteration in the state of the voice ; difficulty in the production and articulation of sounds. DYSPHORIA. From Svg, and opea>, to bear. The restlessness and anxiety which accompany many diseases. DYSPNCEA. From Svg, with difficulty, and TTveu, I breathe. Difficult respiration ; shortness of breath. Dyspnosa Convuls'iva. Asthma. DYSSPERMATIS'MUS. From Svg, and cTrepfiaria/nog, emission. Impeded or slow emission of semen during coition. DYSTHET'ICA. From SvodeTina, a bad state of body. A bad habit of body. The fourth order in the class Hcematica of Dr. Good, including cachexies. DYSTHYM'IA. From Svg, bad, and tiv/Liog , mind. Despondency of mind. Mel- ancholy. DYSTOCIA. Dystochia; from Svg, and roKog, accouchement. Difficult parturition- DYSTOCOLO'GIA. From Svg, and Aoyog, a discourse. A treatise on difficult parturition. DYSTCECHIASIS. From Svg, and croLxog, order. A vicious disposition of the DYSTONIA. From Svg,. and rovog r EAU 228 ECB tone. Morbid condition of the tone of a tissue or organ. DYSU'RIA. From dvc, with difficulty, and ovpov, urine. Difficulty of voiding the urine. DYS'URY. The same as Dysuria. E. E, or Ex. Latin particle signifying out, or out of. EAR. Auris. The organ of hearing, which is divided into external, comprehend- ing the auricle, and meatus auditorius ex- ternus ; middle, which includes' the tym- panum and its connections; and the inter- nal, which includes the semicircular canals, cochlea, vestibule, and whole labyrinth. Ear, Inflammation of. Otitis. Ear Pick. A small scoop and probe used for the removal of hardened cerumen from the meatus auditorius extern us. Ear Trumpet. An instrument used by persons partially deaf for collecting and in- creasing the intensity of sound. Ear-wax. Cerumen aurium. Earache. Otalgia. EARTH. In Chemistry, the earths are certain metallic oxides, of which there are nine, namely, baryta, strontia, lime, mag- nesia, alumina, glucina,zirconia, yttria, and thorina. Earth, Aluminous. Alumina, or clay. Earth of Bones. Phosphate of lime. Earth, Bolar. Argillaceous earth of a spale but bright-red color. See Bole, Ar- menian. Earjph, Fuller's. Cimolia purpures- «cens. Earth, Heavy. Baryta. Earth, Japan. See Acacia Catechu. EARTHS, ABSORBENT. Earths which have the property of neutralizing acids, as magnesia, chalk, &c. EATON'S STYPTIC. A solution of sulphate of iron in alcohol, to which some other ingredients have been added. EAU. The French name for water. Eau pe Belloste. A compound of equal parts of muriatic acid, brandy, and saffron, formerly used as a resolvent. Eau de Brocchieri. A styptic, said to -be a solution of creasote. Eau de Carmes. The name of a French preparation used as a stomachic and stim- ulant. Eau de Cologne. Cologne water; a perfumed spirit, originally prepared at Co- logne. Often used in headache, fever, &c. Eau de Javelle. A solution of chlor- ide of soda. Eau de Luce. Succinated spirit of am- monia. Eau de Naphre. A water obtained by distillation from the leaves of the bitter orange. Eau de Rabel. Aqua rabelii. A mix- ture of concentrated sulphuric acid and al- cohol. Eau de Vie. Brandy. EBENACE^E. Diospyrosebenum. The name of a family of plants allied to the ebony tree. EBENUM. Ebe'nus. Ebony. EB'LANIN or EB'LANINE. Pyrox- anthin, a substance obtained from raw pyr- oxylic spirit. EBR A CREATE. In Botany, without a bractea or floral leaf. EBRIETY. Ebrietas; from ebrius, in- toxicated. Intoxication by spirituous li- quors. EBULLITION. Ebullitio ; from ebul- lire, to boil. The motion of a liquid by which it gives off bubbles of vapor, pro- duced by heat or fermentation. Boiling. EBUR. Ivory. Ebur Ustum Nigrum. Ivory black. EBURNIFICA'TION. Eburnatio; from ebur, ivory, and jio, to be made. An in- crustation of the articular surfaces of bones with phosphate of lime, which gives them the hardness and whiteness of ivory. It attends the latter stages of rachitis. ECBALIUM OFFICINALIS. New name for Momordica elatcrium, or wild cu- cumber. ECH 229 ECP ECBO'LIC. From enpallu, to expel. In Materia Medica, medicines calculated to facilitate the expulsion of the foetus in difficult parturition, or to cause abortion. ECBRAS'MATA. From etcppafa, to make boil. Old term for a burning erup tion. ECCATHAR'TICUS. Cathartic. ECCENTRIC. Away from the centre ; irregular ; odd. ECCEPHALO'SIS. Cephalotomy. ECCHELY'SIS. Expectoration. ECCHLO'MA. An extract. ECTHYMA. Eczema. ECCHYMO'MA. From bk, out of, and X vjuog, juice. Ecchymosis. Ecchymoma Anterio / sum. False aneu- rism. ECCHYMOSIS. From ek X vu, to pour out. A black or blue spot, occasioned by an extravasation of blood into the areolar tissue from a contusion. Spontaneous effu- sions, occurring from disease or after death, are called suggillations. ECCHY'SIS. Effusion. ECCLI/SIS. A luxation. EC'COPE. Excision of any part; also, a perpendicular division of the cranium by a cutting instrument. ECCOPROSIS. From ek, and KOTrpog, excrement. Defecation. ECCOPROT'IC. Eccoproticvs ; from ek, and Koirpog, excrement. Laxatives which simply remove the contents of the aliment- ary canal. • ECCRINOI/OGY. Eccrinolog'ia ; from ettupivG), I separate, and loyog, a discourse. A treatise on the secretions. EC / CRISIS. Excretion of any kind. ECCRIT'ICA. Diseases of the excer- nent function. Also, medicines that acton the secretions. ECCYE / SIS. From ek, and KvrjGig, gra- vidity. Extra-uterine fcetation. ECCYLIO'SIS. From ek, and kvIcelv, to turn round. A disease of evolution or de- velopment. EC / DORA. From ek, and dspo, I flay. Excoriation, especially of the urethra. ECDO'RIUS. That which excoriates. EC / DYSIS. Moulting. Desquamation. ECHETRO'SIS. White bryony. ECH'INATE. Echina'tus. In Botany, bristly ; set with small sharp points ; prickly. ECHINOCOC'CUS. From e X ivog, a spine, and KoicKog, a cyst. A genus of Hy- datids or cystic Entozoons; one of the spe- cies is said by Rudolphi to infest the hu- man subject. ECHINOPHTHAI/MIA. From B X ivog, a hedge-hog, and o^akpia, an inflammation of the eye. Inflammation of the eyelids, characterized by projection of the eyelashes. ECHrNOPS. Echi'nopus. A genus of plants of the order Compositce. Echinops Sph^eroceph'alus. The globe-thistle. ECHINORHYN'OUS. From e X ivog, a hedge-hog, and pvy X og, a beak. A genus of intestinal worms, of the order Acaathoce- phalice. One species, the echinorhyncus bicornis, has been found in the human sub- ject. ECHIUM ^EGYPTIA'CUM. Wall bu- gloss, the root of which is said to be sudor- ific. ECLAMPSIA. From EKka^ig, vivid light. A term applied in Pathology to the appearance of flashes of light before the eyes, occurring in some diseases; also, to the epileptic convulsions of children, and to puerperal convulsions. ECLECTICS. Eclec'ticus; fron^/c^, I select. Writers who select from the va- rious works, upon the same department of science, such doctrines as seem most con- formable to truth. ECLEG'MA. From ekIel^, to lick. A pharmaceutical preparation of a soft consis- tence and a sweet flavor; a linctus. EC / LYSIS. Exsolutio ; from ekIvu, I loosen. Faintness ; prostration of strength. ECON'OMY. From oiKia, a house, and vEfiu, I rule. Literally, the management of household affairs. In Animal Physiology, the assemblage of laws which govern the organization of animals. ECPHLY'SIS. Vesicular eruption. A generic term, including herpes, eczema, pompholyx, and rupia. ECPHRAC'TIC. EcphractVcus ; from EKcppacac), to remove obstructions. Deob- struent. ECPHRO'NIA. Insanity; melancholy. ECPHY / MA. A cutaneous excrescence, as a wart, corn, physconia, &c. ECT 230 ECZ ECPHYSE'SIS. From e^wou, to blow. Hurried respiration, as of a person out of breath. EC'PHYSIS. Apophysis. ECPIES'MA. From eiwreefw, I press out. In Surgery, a fracture of the skull, with de- pression of the bone. ECPIES'MOS. From eiartefa, I press out. Protrusion of the eye from an afflux of humors without increase of its volume. ECPTO'MA. Ecpto'sis. A falling down of any part; applied to luxations, expulsion of the secundines, falling off of gangrenous parts, scrotal hernia, and prolapsus uteri. ECPYC'TICA. See Incrassantia. ECPYE / MA. From e/c, out of, and ttvov, pus. Suppuration ; an abscess ; a collec- tion of pus. ECPYE / SIS. Ecpye'ma. From ekttveo, to suppurate. A generic term for suppura- tive diseases of the skin. ECPYE'TIC. Suppurative ; promoting suppuration. ECRASEUR. (F.) From ecraser, to crush. A kind of steel chain tightened by a screw, used for removing piles, polypi, or malignant growths. ECREG / MA. In Pathology, a segment or rough fragment. Also, an eruption or pustule. ECREX / IS. Rupture; laceration, espe- cially of the vulva or womb. ECRHYTH'MOS. From ex, out of, pv&fiog, rhythm, irregular. In Pathology, irregular pulse. EC'RYSIS. Ecroe. From eKpeu, I run from. A discharge. ECSARCO'MA. From ek, out of, and cap%, flesh. A fleshy excrescence, or sar- coma. EC'STASIS. From el-iora/iai, I am be- side myself. An ecstasy. A total suspen- sion of sensibility and voluntary movements, with retarded vital action. ECSTASY. Ecstasis. ECSTATIC TRANCE. Catalepsy. EC / TASIS. Extension ; expansion. Ec'tasis I / ridis. That expansion of the iris which occasions diminution of the pupil. ECTEX / IS. Emaciation. Colliquation. ECTHLIM'MA. Chafing or excoriation I produced by external violence. ECTHYMA. From eic&vo, I break out, as heat, &c. A cutaneous eruption of large, round and distinct pustules, inflamed at their base. They are seldom numerous, and appear most frequently upon the ex- tremities, neck, and shoulders. Three spe- cies are noticed, namely, ecthyma vvlgare, ecthyma infantile, and ecthyma luridum. ECTILLOT'ICUS. Having power to pull out. Applied to that which eradicates corns or hairs, as a depilatory. ECTO'MIA. Excision ; amputation of any part. ECTOPIA. From ektottoc, out of place. Morbid displacement of any part; luxation. Ectopia A'hi. Prolapsus ani. Ectopia Cordis. Displacement or un- natural position of the heart. ECTOZO'ON". Ectozo'a. Bk-oc. with- out, and Zuov, an animal. Parasitic insects, as lice, that infest the surface of the body, differing from entozoa, found within the body. ECTRIM'MA. In Pathology, ulceration of the skin, especially of those parts of the body in contact with the bed after long con- finement. ECTRO'PIUM. Ectropion. From en-pETTu, I avert. Eversion of the eyelids, so that the iuner surface is turned out. ECTRO'SIS. Ectro'ma. Miscarriage ; abortion. ECTROT'IC. That which is calculated to cause abortion. Applied, also, to the treatment of disease, or that line of treat- ment which destroys at once the morbid action, without giving it a chance to involve the economy. EC / ZEMA. From ek^eco, I boil out. Heat ; eruption. A cutaneous eruption of small vesicles thickly crowded together, without any manifest inflammation. Eczema Mercuria / le. Eczema rubrum. Eczema caused by the irritation of mercury. Eczema of the Face. This sometimes occurs in advauced age, and in young chil- Eczema of the Scalp. Ec'zema Cap'i- tte. Scald head. It occurs during denti- tion, and also afterwards, and the discharge is very profuse. After a time, the secretion dries into crusts and mats the hair into small separate tufts. The scalp shows signs of iuflammatorv excitement, and the lvm- EFF 231 EIL phatic ganglions of the neck are liable to become ii. flamed and to suppurate. EDENTATA. Edea'tah. The name of an order of mammals characterized by the absence of the incisor, and," generally, of the cuspid teeth. EDENTULOUS. Anodan'tos; anod- ous; edentatus ; from e, and dens, dentis, a tooth. Without teeth ; one who never had teeth, or one who has lost his teeth. The causes which most frequently give rise to the loss of the teeth, are caries and chronic inflammation of the gums and alveolo-den- tal membranes. See Caries of the Teeth, and Gums, Diseases of. Although it is impossible completely to remedy this defect, yet, to such a high state of perfection has the prosthesis of these or- gans been brought, that their loss is now replaced with artificial substitutes which subserve a most valuable purpose. See Artificial Teeth. EDES. Amber. EDUCATION, PHYSICAL. The train- ing of the body in such exercises as are cal- culated to give strength, vigor, and health to all of its organs. EDUL'CORANT. EduVcorans. Medi- cines which are supposed to deprive fluids of their acrimony. EDULC ORATION. Edulcora'tio. The act of rendering substances mild, either by the affusion of water for the removal of their saline and other disagreeable qualities, or by the addition of saccharine matter. EFFERENT. Efferens; from effero, I carry, I transport. Applied to vessels which convey fluids from glands, as the vasa efferentia, which carry lymph from the lymphatic glands to the thoracic duct, and to nerves which convey the nervous influ- ence from the nervous centres to the cir- cumference. EFFERVESCENCE. Effervesced tia ; from effervescere, to boil over, to ferment. In Chemistry, the commotion produced by the escape of gas from a liquid, at the or- dinary temperature of the atmosphere. In Humoral Pathology, a supposed ebullition of the blood or other fluids, produced either by elevation of temperature, or the action of the principles contained in them, on each other. EFFERVESCING DRAUGHT. A car- bonated beverage, used, sometimes, aa a vehicle for saline medicines.- Dissolve a scruple of carbonate of soda, or potassa, in an ounce of water; mix two drachms of cinnamon water with a drachm and a half of syrup of orange peel ; add to these a tablespoonful of fresh lemon juice, and drink the mixture immediately. EFFETE'. Effatus. Impoverished ; worn out. EF'FILA. Freckles. EFFLORESCENCE. Efflora'tio; from effiorescere, to blow as a flower. In Chem- istry, the spontaneous conversion of a solid into a pulverulent substance. In Botany, act of flowering. In Pathology, acute ex- anthemata. EFFLUVIUM. From effluo, to flow out. An exhalation, generally noxious or disagreeable. EFFRACTL T/ RA. Fracture of the cra- nium with much depression. EFFUSION. From effundere, to pour out. In Pathology, extravasation of a fluid into a visceral cavity or into the cellular tissue. EGES / TA. From egero, to carry out. The expulsion of faeces from the healthy body. The excretions. EGG. The ovum of birds and oviparous animals. Egg-Plant. The popular name of the Solarium melongena. EGOPH'ONIC. Pertainingto egophony. EGOPH'ONY. ^gophonia; from a^, a goat, and (jhovtj, the voice. Goat's voice. Applied by Laennec to the human voice, where it gives through the stethoscope a clear and acute sound, resembling the voice of the goat, and which he regards as indic- ative of moderate effusion into one of the pleurae. EGREGOR'SIS. Morbid watchfulness. EGYPTIAN BEAN. The popular name of the fruit of the Nelumbium speciosum. Egyptian Pebble. A species of Jasper. EIGHTH PAIR OF NERVES. See Pneumogastric. EILAMFDES. The meninges of the brain. EILE / MA. A painful convolution of the intestines or tormina produced by flat- ulence. Also used by Vogel to express a ELA 232 ELE fixed pain in the intestines, as if a nail were driven into the part. ETLEON. The ileum. EILEOS. Ileus. EISANTHE'MA. Eruption on a mu- cous membrane, such as aphthae. EISBOLE. The access of a disease or of a particular paroxysm. Also, injection. EISPNOE. Inspiration. EJACULATION. Ejacula'tio; from ejaculare, to cast out. The act by which the semen is darted through the urethra. EJAC'ULATORY. Ejaculans. Con- cerned in the ejaculation of the semen. Ejaculatory Ducts. The vessels which convey the semen to the urethra. EJECTION. Ejec'tio; from ejicere, to throw out. Excretion of the faeces, urine, &c. ELABORATION. Elabora'tio ; from e, and laborare, to work. In Physiology, the various changes which assimilative sub- stances undergo, through the action of living organs, before they become subservient to nutrition. EL^EOM'ETER. A delicate glass hy- drometer for estimating the purity of oils. ELjEOM'ELI. From eAcuov, oil, and jxeki, honey. A purging oil, of a sweet taste, obtained from the trunk of a tree in Syria. EL^EON. Oil. ELvEOPH'ANES. From elaiov, oil, and aivofj.ai, I appear. Having the ap- pearance of oil. ELzEO-SAC'CHARUM. From elacov, oil, and aaitxapov, sugar. A mixture of essential oil and sugar. ELAIDINE. A substance resulting from the action of nitrous acid upon olive, almond, and some other oils. It resembles stearine. ELAIN. Erom elaiov, oil. Oleine. The oily principle of solid fats and oils. ELAIOD'IC ACID. One of the com- pounds resulting from the saponification of castor oil. Oleoricinic acid. ELAIOM'ETER. An instrument for de- tecting the adulteration of olive oil. In pure olive oil it floats at 50°, and the space between 0, or zero, and 50° is divided into fifty equal parts, and numbered accordingly. ELAIS GUINEEN'SIS. A palm found in Guinea and the West Indies, which yields an emollient, fatty substance EL'AOLITE. From eXaiov, oil, and Xi'&og, stone. A mineral of a brittle, crystalline texture, greasy lustre, grayish, greenish, or reddish shade, composed of silica, alumina, and potassa. ELAS / M A. Old name for a clyster-pipe. ELAS'TIC. Elasti'cus; from slaar^g, impulsion, itself from eAaweiv, to impel, to push. Endowed with elasticity. Elastic Fluid. A gas. Elastic Gum. Caoutchouc. ELASTICITY. A property in bodies which restores them to their original form, after having been made to deviate from it by external force. ELAS'TICIN. Elasticus, elastic. The peculiar solid material of the elastic tissue. ELATE'RIN. Elaterina. A erystal- lizable substance found in the juice of Ela- terium. It is distiuct from Elatin. ELATE'RIUM. A substance deposited from the juice of the wild cucumber. See Momordica Elaterium. ELATIN. The active principle of ela- terium. EI/BOW. From ell, and bow. Ap- plied to the articulation of the arm with the forearm, and especially to the projec- tion formed by the ulna. EL'CAJA. An Arabian tree, the fruit of which is emetic. ELCO'SIS. From eluoc, an ulcer. Ul- ceration. Applied by Sauvages to cachectic diseases attended with fetid, carious, and chronic ulcers. ELD'ER. See Sambucus. Elder, Dwarf. Sambucus ebulus. ELECAMPANE. The popular name of the Inula Helenium ; which see. ELECTIVE AFFINITY. See Affin- ity, Elective. ELECTRIC. Relating to, or containing, electricity. Electric Attraction. The attraction which exists between certain electrified sub- stances, as glass, amber, sealing-wax, sul- phur, and other light bodies. Electric Aura. The current or breeze produced by the discharge of electricity from a highly charged conductor. It has some- times been employed as a mild stimulant to delicate parts, as the eye. ELE 233 ELE Electric Friction. The irritating ac- tion produced by the reception of sparks from a person in the electrical bath through flannel. Electric Fishes. A term applied to certain fish, the species of the class Pisces, which have the power of discharging the electric shock. Electric Repulsion. The repulsion of light bodies from certain electrified sub- stances after having come in contact with them. Electric Shocks. The partial and rapid convulsions produced by the sudden admin- istration of a large amount of electricity from the Leyden jar. ELECTRICAL. Pertaining to, or con- taining electricity. Electrical Battery. A number of Leyden jars placed in a box lined with tin foil, and communicating with each other by means of metallic rods. Electrical Column. A species of elec- trical pile consisting of thin plates of dif- ferent metals, arranged in pairs, with paper between them. Electrical Machine. A mechanical contrivance, consisting of a round plate or cylinder of glass, made to revolve upon its axis, and pressed during each rotation by a cushion of leather covered with silk and smeared with an amalgam of tin and zinc. There is also attached to the machine the prime conductor, usually made of brass and sustained by one or more glass legs. The end nearest the glass plate or cylinder is furnished with a number of small wires which come in such immediate proximity with it, that the electric condition of the one is immediately transferred to the other. ELECTRICITY. Electric' itas ; from rjlenrpov, amber, the substance in which it was first discovered. A property which certain bodies exhibit, either naturally or when subjected to the action of various ex- citants, causing them to attract or repel light bodies, emit sparks, or streams of light, and to produce involuntary muscular contraction in the bodies of animals when it is made to pass through them. Also, the science which treats of the phenomena of electricity. There are three kinds of elec- tricity : Dynamic, that which is constantly excited by contact with metals. Faradiza- tion, the use of the magnet with battery. Static, that at rest, stationary. Medicinally, electricity is used as an ex- citant, and has been employed with success in paralysis, rheumatism, deafness, amauro- sis, &c. It maybe communicated by means of the electric bath, by points, sparks, or by shocks, according to the intensity required. Electricity, Animal. See Galvanism. Electricity, Voltaic. Galvanism. ELECTRIZATION. The medical ap- plication of electricity. ELECTRIZERS, HARRINGTONS. Plates of copper and zinc, or silver and zinc, employed for medical purposes. ELECTRO-BIOLOGY. One of the ali- ases of animal magnetism. Electro-Chemistry. That branch of science which treats on the application of electricity as a chemical agent. Electro-Chemical Action. Chemical action induced by electrical arrangements. Electro-Dynamics. The science treat- ing of the effects or phenomena of elec- tricity in motion. Electro-Magnetic Apparatus. An ap- paratus by which a current of electro mag- netism is excited. A convenient form con- sists of a battery of six curved permanent magnets, and an intensity armature around whose cylinders 1500 yards of fine insulated copper wire are coiled. The ends of the wire communicate respectively with a pair of directors, each of which holds a piece of sponge dipped in vinegar or a solution of common salt. When the armature is ro- tated and a portion of the body is interposed between the directors, a succession of shocks is received. It has been used in paralysis, &c; also as a local anaesthetic. See Gal- vanic Battery. Electro-Magnetism. Magnetism ex- cited by electricity, generally by galvanic electricity. ELECTRODE. The end of a wire which communicates with a voltaic circle, commonly called a pole, is so termed by Faraday, because, as he believes, it serves as a path or door to the electric current. ELECTROGEN'ESIS. 'HAttcrpov, am- ber, and -yew, to be born. The production of electricity. ELECTROGEN'IC. Electrogen'icus. Belonging to electrogenesis. ELE 234 ELE ELECTROI/OGY. Electrolo'gia; from TjXeicrpoVj amber, and loyog, a discourse. A treatise on the science of electricity. ELECTROI/YSIS. The direct decom- position of bodies by galvanism. ELECTROLYTE. A substance under- going direct decomposition by the action of the electric current. ELECTROMETER. An instrument for measuring electricity. ELECTROPO'LAR. A term applied to a conductor in which one end or surface is positive while the other is negative. ELECTROPH'ORUS. An instrument invented by Volta for collecting weak elec- tricity, consisting of a flat cake of resin and a disk of metal, of rather smaller diameter, supplied with a glass handle, used in elec- trical experiments to show the generation of electricity by induction. ELECTROPUNC'TURE. The introduc- tion of two or more wires into any part of the body and then connecting them with the poles of a galvanic battery. ELEC'TROSCO PE. An instrument for the discovery of electrical excitement. ELEC'TROTINT. A process by which an engraving may be made by the electro- type from an original painting in thick colors ELECTROTYPE. The precipitation, by means of a galvanic current, of a metal, from a solution, upon any metallic object immersed in it. ELEC'TRO-VPTAL or NEU'RO- ELEC'TRIC CURRENTS. Two electric currents supposed to exist in animals, the one external, the other internal. ELECTRUM. Amber; also the name for a mixture of four parts of gold and one of silver. ELECTUA'RIUM. An electuary; a confection. Electuarium Cassle. A confection of cassia. ELEMENT. A substance which can- not be divided or decomposed by chemical analysis. EL / EMI. Amyris elemifera. A fragrant resiuous exudation from several species of Amyris. ELEOSEL'INCM. Apium graveolens. ELEPHANTIASIS. From e/.eoac, an elephant. A chronic inflammation of the skin, occurring in warm climates, as in Af- rica, the West Indies, Madeira, and the Isle of France, in which the integument be- comes rough, indurated, wrinkled, and scaly, like the skin of an elephant, attended by a diminution and sometimes a total loss of sensibility ; the formation of fissures in the skin, ulcerations, &c. This variety is nearly allied to leprosy, if it is not the same dis- ease, and is called Elephantiasis Grceco / - rum ; also, Le'pra Ar'abum. Another variety is characterized by the leg being much swollen and misshapen, and thus sup- posed to resemble that of an elephant. This form is known as the Elephantiasis Ara- bum, Bucnemia, Barbadoes Leg, &c. EL'EPHAS. The elephant ; ivory. ELETTA'RIA. A genus of plants of the order Zingiberacece. Elettaria Cardamomum. The officinal cardamom, the seeds of which are aromatic and gently pungent when chewed. ELEUTHERIA. Cascarilla bark. ELEYA'TOR. From elevare, to lift up. In Anatomy, a muscle whose function con- sists in raising the part into which it is in- serted. See Levator. In General Surgery, an instrument used to raise depressed por- tions of bone, especially of the cranium, or for the removal of the circle detached by the trephine. In Dental Surgery, an instru- ment sometimes employed in the extraction of roots of teeth. The elevator used in the last-mentioned operation is of a pointed shape, bearing some resemblance to the tongue of a carp, and is hence called by the French dentists langue de carpi ; it is flat or slightly concave on one side and convex on the other, attached to a straight or curved shank, according to the fancy of the opera- tor, or the part of the jaw on which it is designed to be employed, and inserted in a large, strong, ivory, wood, or pearl handle. Elevator Axi. Levator ani. Elevator La / bii Ixferio'ris Pro'prius. Levator labii inferioris. Elevator La / biiScperto / ris Pro 'prius. Levator labii superioris ala?que nasi. Elevator Labio / rcm. Levator anguli oris. Elevator Na'si Ala'rxm. See Leva- tor Labii Superioris Ala?que Nasi. Elevator Oc'uli. Rectus superioris. ELI 235 ELY Elevator Pai/pebr^e Superio'ris. Le- vator palpebras superioris. Elevator Scap'ul^e. Levator scapulae. Elevator Testic / uli. The cremaster muscle. Elevator Ureth'rje. The transversus perinasi muscle. ELEVATO'RIUM. The elevator; a surgical instrument. ELIMINATE. To set free, to expel, to throw off. ELIQUA'TION". Liquation. In Metal- lurgy, a process of separating two metals of different fusion-points, by heating the mixture sufficiently to melt that metal which fuses at the lower temperature, when it runs out, leaving a porous cake of the more in- fusible metal The same process is applied to the separation of fusible sulphurets, as that of antimony, from their ores. This operation is sometimes called leveating. In Pathology, colliquation. ELIXA'TION. Elixatio; from dims, boiled, sodden. The act of boiling or seething. ELIX / IR. Generally supposed to be from elekser, quintessence. A solution of various medicinal substances, or their active principle, in alcohol. It is analogous to tincture. Elixir Acidum Halleri. A mixture of concentrated sulphuric acid and alcohol. Elixir Al / oes. Tincture of aloes and myrrh. Elixir Antiasthmat'icum Boerhaavii. Boerhaave's anti-asthmatic elixir, composed of alcohol, aniseed, orris root, liquorice, ele- campane, sweet flag, and asarabacca. Elixir Paregoricum. Paregoric. Elixir Pectora / le Re / gis Da'ni^e. A mixture of liquorice, fennel water, and am- moniated alcohol. Elixir Proprieta'tis. Compound tinc- ture of aloes. Elixir Sacrum. Tincture of rhubarb and aloes. Elixir Salu'tis. Compound tincture of senna. Elixir Stomach'icum. Compound tinc- ture of gentian. Elixir Vit^e Mathi'oli. A tincture of alcohol and twenty-two aromatic and stim- ulating substances formerly used in epilepsy. Elixir Vitrioli. Aromatic sulphuric acid. ELIXIVIA'TION. Lixiviation. ELLA'GIC ACID. An acid obtained from nutgalls, distinct from gallic and tannic acids. ELM. The popular name of all the trees belonging to the genus Ulmus. ELMINTHO'CORTON. Corallina Cor- sicana. ELO / DES. From eAog, a marsh, and etdoQ, resemblance. Marsh fever. ELONGATION. Elonga'tio; from elon- gare, to lengthen. In Surgery, an imper- fect luxation, in which the ligaments are stretched and the limb lengthened. Also, the extension required in the reduction of a dislocation or fracture. ELUTRIA'TION. Elutria'tio ; from elutrio, to cleanse. In Chemistry and Phar- macy, the separation of the light from the heavy particles of a powder by suspending both in water, allowing the coarser grains to fall, and decanting the fine powder. ELU'VIES. From eluo, to wash out. A preternatural discharge of any fluid ; also the fluid itself. Applied sometimes to leu- corrhcea. ELYTRATRE'SIA. Imperforation of the vagina. ELYTRFTIS. From eXvrpov, the vagina, and itis, inflammation. Inflammation of the vagina. ELYTROCE'LE. From eXvrpov, an en- velope, and x £ "^ e i a tumor. Vaginal hernia. ELYTROIDE. From eXvrpov, and eidog, resemblance. The tunica vaginalis. EI/YTRON. From eAvco, I involve. A sheath ; the vagina. In Anatomy, the mem- branes enveloping the spinal marrow are called e?ivrpa. In Zoology, the coriaceous envelope which sheathes the inferior or membranous wing of Coleopterous and Or- thopterous insects. ELYTRON'CUS From eXvrpov, and oynog, sl tumor. A swelling or tumor of the vagina. ELYTROPLAS'TY. Operation for the cure of vesico-vaginal fistula, consisting of transplanting skin from the labia or nates. ELYTROPTO'SIS. From eXvrpov, a sheath, and tttoocc, fall. Applied to inver- sion and prolapsus vagina. ELYTRORRUA'GIA. From eXvrpov, EMB 236 EME and prjyvvjui, to burst forth. Vaginal hem- orrhage. ELYTRORRHCE'A. From elvrpov, and pea), to flow. Passive hemorrhage from the vagina; also a mucous discharge from the vagina. ELYTROR'RHAPHY. From eAvrpov, and pa(j>?j, a suture. The restoration of the vagina by suture in cases of fissure and prolapsus. EMACIATION. Emacia'Uo; from em- aciare, to grow lean. Wasting of the flesh. The condition of a person who is losing flesh. Becoming lean. EMANATION. Emana'tio; from em,- anare, to issue from. A term applied to fluid or gaseous bodies, which proceed, or orginate from other bodies, as light from the sun, odors from plants, and miasmata, from the decomposition of animal and veg- etable substances. EMAN'SIO MEN'SIUM. Amenor- rhcea, usually applied to that form of the disease in which the patient has never men- struated. EMAR'GINATE. In Botany, notched in a peculiar manner at the apex. In Zo- ology, having the margin broken by an ob- tuse notch on the segment of a circle ; and in Mineralogy, having all the ridges of the primitive forms truncated, each by one face. EMASCULATE. Emascula'tus. A male deprived of the generative power. EMASCULATION. EmascuWtio ; from emasculare, to render impotent. The act of destroying or removing the male generative organs. EMBALMING. The preservation of the dead body, by impregnating it with substan- ces capable of preventing it from becoming putrid, and thus preserving it. Among the Egyptians it was usually done by saturating every part with asphaltum. EMBAM'MA. From e/zpairru, I immerse in. A medical condiment, or sauce in which the food is dipped. EMBOITEMENT. A French word, ap- plied by Bonnet to that hypothesis of gener- ation which considers the embryos of suc- cessive periods for hundreds of years, as incased within one another, each possessed of a complete series of organized parts. ExMBO'LIA. Ev, in, and fiaAlu, to throw Obstruction of an artery or vein from coagu- lated blood. EM 7 BOLUS. A wedge or stopper. Ap- plied to a piece of coagulum, formed in large vessels in certain morbid conditions, and afterwards forced into a small artery so as to obstruct the circulation. EMBONPOINT. A French word sig- nifying in good condition, or in full health. EMBROCATION. Embroca'tio ; from e/j.(3pexcj, I sprinkle. A fluid application, especially a liniment, to be rubbed on any part of the body. EMBROCHE. Embrocation. EMBRYO. Em'bryon; from epppvo, I grow. The foetus in utero, during the early stages of its development. Also the germ of a tooth or of a plant. EMBRYOG'RAPHY. Embryograph'ia; from e/j.[3pvov, the embryon, and jpa^ij, a de- scription. An anatomical description of the embryo EMBRYOLOGY. Embryolog'ia; from efifipvov, and 7.oyog, an account. A descrip- tion of, or treatise on the embryo. EMBRYOTHLAS'TES. Embryothlas' - ta ; from z\ifipvov, the embryo, and d-?.avo), to crush. In Obstetrics, an instrument for crushing the dead foetus to facilitate its re- moval in difficult parturition. EMBRYOTOMY. Embryotom'ia; from efiftpvov, the embryo, and -e/xveiv, to cut. In Obstetric Surgery, the dismembering of the foetus in utero in order to its removal. EMBRYUL'CIA. From e/uppvov, and e/iKu, to draw. The removal of the dead foetus with a blunt hook. EMBRYUL'CUS. From evppvov, and eIku, to draw. The blunt hook forceps for the extraction of the foetus from the uterus. EM'ERY. A variety of corundum char- acterized by extreme hardness. The pow- der is used for cutting and polishing glass, and in the composition of wheels for grind- ing porcelain teeth. Emery Wheels. Wheels varying in thickness from an eighth to three-quarters of an inch, and in diameter from one to niue or ten inches, composed of shellac and emery. They are employed in the mechanical labor- atory of the dentist for grinding porcelain or mineral teeth. When well made they are preferable to any other grinding wheel, ex- cept the corundum, used for this purpose. EMO 237 EMP EM'ESIS. Eme'sia. The act of vomit- ing. EMETATROPH'IA. Atrophy induced by vomiting. EMET'IC. Emet'icum; from efieu, I vomit. A substance capable of exciting emesis. Emetic Tartar. Tartarized antimony. Emetic Weed. Lobelia inflata. EM'ETINE. Emeti'na. A vegetable alkali discovered by Pelletier in ipecacu- anha, to which it owes its emetic power. EM'ETO-OATHAR'TIC. Em'eto cath- ar'ticus. A medicine which excites vomit- ing and purging at the same time. EMINENCE. Eminen'tia. A projec- tion or protuberance on the surface of an organ. EMINEN'TIA ANNULARIS. The pons varolii. EMINENTIiE CANDIDAN'TES. The corpora albicantia of the brain. Eminenti^e Lexticula'res The cor- pora striata. Emixexti^e Magx.e Cereb'ri. The ' thalami opticorum. Emenext^e Quadrigem'ix^e. The tuber- cula quadrigemina. EMISSA'RIA. From emittere, to send or let out. A term applied in Anatomy to excretory ducts. Emissa'ria Dcr,e Mat'ris. The pro- cesses of dura mater which accompany the cerebral nerves through the cranial fora- mina. Emissaria Saxtori'xi. The minute veins which communicate with the sinuses of the dura mater through the foramina of the cranium, and may, sometimes, convey to the exterior the blood circulating within. EMISSION. Emis'sio; from emittere, to send out, drive out. The act by which matter of any kind is thrown from the body. EMISSO'RIUS. Emissory; that which conveys any fluid out of the body. EMMEN'AGOGUES. Emmenago'ga; from enfirfvia, the menses, and ayu, I drive, or expel. Medicines which promote or fa- vor the discharge of the menses. EMME'NIA. The menses. EMMENOLOG'IA. From eppp,**, the menses, ( and Xoyoc, a discourse. A treatise on menstruation. EMOLLIENTS. Emollien'tia ; from emollire, to soften or relax. Substances which soften or relax inflamed parts, as bland oils, fomentations, cataplasms, &c. EMO'TION. Emo'tio. Affection of the mind. Delirium. EMPATHE'MA. E/nra^g; from nadr/fia, passio, affectio. Ungovernable passion. EMPEPRIA. Empiricism; medicine founded exclusively upon observation. EM'PHLYSIS. From ev, in, and tylvoig, a vesicular tumor or eruption. Vesicular eruption, with a discharge of an acrid fluid, as in aphtha, erysipelas, pemphigus, &c. EMPHRACaiCUS. Emphrac'tic; from ejU(j>paTTCj, I close, I obstruct. A medicine which closes the pores of the skin when ap- plied to it. EMPHRAG'MA. That which obstructs. Emphragma Lachryma'le. Fistula lach- rymalis. Emphragma Saliva're. Ranula. EMPHRAX'IS. Obstruction of any cavity or canal. EMPHY'MA. A tumor, or morbid growth. EMPHYSE'MA. From efnj>vaao> t I in- flate. An elastic, crepitant swelling, caused by the introduction of air or other aerilorm fluid into the cellular texture. Emphysema Abdom'ixis. See Tympan- ites. Emphysema of the Luxgs. Infiltratiou of the intercellular texture of the lungs with air. Emphysema Pec'toris. See Pneumo- thorax. EMPIR'IC. Empiri'cus ; from e/uireipia, experience. Formerly applied to one who, in the practice of physic, followed expe- rience alone, but, at present, to one who deviates from the course pursued by regular practitioners, and vends nostrums. The term is used in nearly the same sense as as that of charlatan, or quack. EMPIRICISM. The practice of empir- ics. Quackery. EMPLAS'TICUS. An emphractic. EMPLAS'TRUM. From efnrlaaau, I spread upon. A plaster. A solid glutin- ous compound, which at the ordinary tem- perature of the body, adheres to the part on which it is placed. Emplastrum Adh^e'sivum. Emplastrum resinoz. Resin plaster; adhesive plaster. BMP 238 EMP Emplastrum Adh-E'sivum Ax'glicum. Court plaster. Emplastrum Ammoxu'aci. U. S. An ammoniac plaster. Emplastrum Ammoxtaci cum Hydrar'- gtro. Lond. A plaster composed of am- moniac, mercury, olive oil, and sulphur. Emplastrum Aromat / icum. Dub. Aro- matic plaster. Emplastrum Asafge'tid.e. U. S. Em- plastrum antihyster'icum. An asafcetida plaster. Emplastrum Belladox'x^e. TJ. S. A plaster of belladonna. Emplastrum Calefa'ciexs. Dub. A calefacient plaster. Emplastrum Caxthar'idis. Lond. A plaster of Spanish flies. Emplastrum Cantharidis Compos / itum. Ed. Compound plaster of Spanish flies. Emplastrum Ce'rje. Lond. A wax plaster. Emplastrum Cicu't-E. A French prepa- ration of pitch plaster, with hemlock pow- der. Emplastrum Cumi'xi. Lond. Cumin plaster. Emplastrum Diach'ylox. Emplastrum plumbi. Litharge plaster. Emplastrum Epispas / ticum. Emplas- trum cantharidis. Blistering plaster. Emplastrum Fer / ri. U. S., Ed. Iron plaster. Strengthening plaster. Emplastrum Gal'baxi. Dub. Galba- num plaster. Emplastrum Galbani Compos'itum. U. S. Compound plaster of galbauum. Emplastrum Gummo'sum. Ed. Gum plaster. Emplastrum Htdrar / gyri. U.S., Lond., Ed. Mercurial plaster. Emplastrum Hyurar / gyri Compos'i- tum. Ph., Dub. A mercurial plaster, with resin. Emplastrum Lithar / gyri. Emplastrum plumbi. Litharge plaster. Emplastrum Norimbergex'se. An oint- ment of red lead, wax, oil, and camphor. Emplastrum Opii. U. S. An opium plaster. Emplastrum Pi / cis. Lond.. Ed. Em- plastrum picis compos'itiun. Compound pitch plaster. Emplastrum Pr'cis cum Caxtharide. Plaster of pitch, with Spanish flies. Emplastrum Plumb'i. IT. S., Lond. Lead plaster. Emplastrum Plumbi Carboxa'tis. Plas- 1 ter of carbonate of lead. Emplastrum Resu'x^e. U. S., Lond. 1 Resin plaster. Emplastrum Sapo'xis. U. S. Soap ! plaster. Emplastrum Sapoxis Compos / itum. Ad- | hesive plaster. Emplastrum Simplex. Ed. Emplas- trum cera. Wax plaster. Emplastrum Thu'ris Compos'itum. Compound frankincense plaster. Emplastrum Vesicato'rium. Emplas- trum cantharidis. Plaster of Spanish flies. EMPORIUM. A mart. The brain was formerly so called because all the affairs of the mind are transacted there. EMPRES'MA. From eu-prfu, I burn within. Visceral inflammation ; inflamma- tion of anv of the viscera. EMPROSTHOT'OXOS. From eu-poc- &ev, forward, and retvu, I stretch, I extend. A form of tetanus, in which the body is drawn forward. EMPSYCHO'SIS. From e/nJn> X ou, I an- imate. I vivify. The act of animating. The union of soul and body. EMPTO / SIS. Imbibition. Endosmosis. EMPTY'SIS. From eu-rvu, I spit out. Haemoptysis; spitting of blood. EMPYE'MA. From ev. within, and ttvov, pus. A collection of pus in the cav- ity of the chest. "EMPYE'SIS. Suppuration. A phleg- monous eruption, in which the pimples gradually fill with purulent fluid, and after awhile dry up, leaving thick scabs. EMPYOCE'LE. From ev, in, -vov. pus. and Krf/.i], a tumor. A tumor of the scro- tum formed by a collection of pus. EMPYOM'PHALUS. From ev, in. -vov, pus, and ouoa/.oc, the navel. A suppurating tumor under the navel, or umbilical hernia. EMPYOS. Purulent. EMPYREAL AIR. Oxygen gas. EMPYREC'MA. From" eu-vpevu, I kindle. A peculiar offensive odor which auimal and other substances contract when decomposed by beiug exposed to heat in a closed vessel. EN A 239 EKA EMPYREUMAT'IC. Empyreumat'i- cus. Possessing the qualities ofempyreuma, as an empyreumatic smell or taste. Empyrkumatic Oil. Oil derived from the destructive distillation of animal mat- ters. EMUL/GENT. Emulgens ; from emul- gere, to milk out, to draw out. The renal artery and vein are so called, because the ancients imagined they strained, or milked the urine through the kidneys. EMUI/SIN. Albumen of almonds. EMUI/SIO. An emulsion. Emulsio Acacia. Gum Arabic emul- sion. Emulsto Amyg'dal^e. Almond emul- sion ; almond milk. Emdlsio Camphora / ta. An emulsion composed of camphor, blanched sweet almonds, refined sugar and water. EMUl/SION. Emulsio. A medicine of a milky-white appearance, composed of oil and mucilage. Emulsion, Almond. Mistura amygdalae; almond mixture. Emulsion of Asafcetida. Asafcetida mixture. Emulsion, Camphorated. See Emul- sio Camphorata. Emulsion of Gum Ammoniac. Ammo- niac mixture. Emulsion of Gum Arabic. Mucilage of gum arabic. EMUI/SIVE. Applied to seeds and the kernels of nuts which yield oil when pressed. EMUNC'TORY. Emunctorium ; from emungere, to drain off. Any excretory or- gan of the body, or cavity, containing fluids to be excreted. EMUN'DANS. Cleansing or purifying ; applied to washes for ulcers. EMUNDAN'TIA. Detergents. ENiE'MOS. A topical application for arresting hemorrhage, by agglutinating the parts. EN^EORE'MA. From ev, in, and auo- peu, I lift up, that which hangs or floats in. A deposit floating in the urine. ENAM'EL. A vitreous substance used for painting on porcelain, glass, and for covering metals with various kinds of orna- mental work. It is composed of coloring matters which consist of metallic oxides, fluxes of verifiable substances, as silicates, borates, or boro-silicates. See Porcelain Teeth. Enamel of the Teeth. Cortex stria' ta ; adaman'tina den' Hum; crusla dentium adaman'tina ; substan'tia vit'rea. A seem- ingly semi-vitreous substance which covers the crown and extends to the neck of a tooth. It is the hardest of all animal sub- stances, is usually of a pearly milk-white color, and extremely smooth and glossy on its surface. Like dentine, it varies in den- sity, being much harder on some teeth than others ; it is thickest on those parts most exposed to friction, as on the protuberances of the molars, the cutting edges of the in- cisors, and the cusps of the bicuspids and cuspidati, and is thinnest towards the neck. The structure of the enamel is fibrous ; its fibres radiating from the dentine to the sur- face of the tooth, an arrangement by which immense strength and power of sustaining great pressure, are given to it. In describing the microscopic structure of the enamel of the human tooth, Professor Owen says, it "consists of long and slender, solid, prismatic, for the most part hexag- onal, fibres of phosphate, carbonate, and fluate of lime," which " are essentially the contents of extremely delicate membranous tubes, originally subdivided into minute depressed compartments or cells, of which membranes scarcely a trace can be detected in fully formed teeth. The fibres are ar- ranged closely together, side by side, with occasional narrow angular fissures, or inter- spaces, which are most common between the ends nearest the dentine ; their general direction is perpendicular to the surface of the dentine, where the ends of the prisms are fixed in shallow depressions ; the oppo- site and larger ends form the exposed sur- face of the enamel; the fibres proceeding to the horizontal masticating surface are, therefore, vertical ; the greater number, which are directed to the surface of the crown, are horizontal, or nearly so ; every fibre, as a general rule, having, like the tubes of the dentine, that direction which is best adapted for' resisting either the exter- nal force of mastication or the effects of lateral pressure. Besides the minute pits corresponding with the inner ends of the enamel fibres, the outer surface of the den- tine sometimes presents larger depressions. ENA 240 ENC The enamel fibres describe a flexuous course, the curves being much stronger and shorter than the primary curves of the dentinal tubes. The paral- lelism of the fibres continues over a much smaller extent of any part of the enamel than that of the calcigerous tubes in the dentine: in some parts of the enamel they curve in opposite directions to one another, like the vane of a feather. Sometimes the fibres may be traced through the etitire thickness of the enamel ; where they fall short, and where the larger fibres diverge from each other, shorter complemental ones fill up the interspaces. Each fibre is l-5000th of an inch in thickness, and is marked throughout its entire course by faint, close- set, transverse striae. When a section of enamel includes several fibres in its thick- ness, certain of the overlapping curves in- tercept a portion of light, and occasion the appearance of dusky, brownish waves. An- other appearance, more immediately related to the formation of enamel, is produced by lines crossing the enamel-fibres, parallel with the outer margin of the enamel, but not always parallel with that attached to the dentine. These lines are not of equal clearness, but are very nearly equidistant, being about l-20Q0th of an inch apart; they are more plainly seen in transverse sections of the crown than longitudinal sec- tions, and they have the same relation to the fibres of the enamel which the contour- lines of the dentine bear to the calcigerous tubes. Without doubt they indicate, in like manner, strata of segments of the fibres and stages in the formation of the substance. Where these strata, which are arranged very obliquely to the vertical surface of the den- tine, cross out upon that surface, they occa- sion those waves, transverse annular delicate markings, which Leeuwenhoek noticed upon the exterior of the enamel, and which he supposed to indicate successive stages in the protrusion of the tooth through the gum, in taking its place in the dental series." Mr. Nasmyth has demonstrated with the microscope that the enamel of the human tooth, as well as the dentinal part, is cellu- lar. Each cell " is of a semicircular form, and the convexity of the semicircle looks upward toward the free external portion of the tooth."' Thus, by this most peculiar structural arrangement, a capability of re- sisting mechanical force is imparted to the enamel, which its simple fibrous structure would wholly fail to supply. The chemical composition, acording to Berzelius, in every 100 parts of enamel is, to wit: Phosphate of lime, . . . Fluate of lime, .... Carbonate of lime, . . . Phosphate of magnesia, . Soda and muriate of soda, Animal matter and water, 85.3 3.2 8.0 1.5 1.0 1.0 100. These proportions, however, are not al- ways the same. They vary in the enamel of the teeth of different individuals. Enamel Chisel. A dental instrument of a chisel shape with a straight or oblique edge, and used for cutting away the enamel and dentine of the teeth. Enamel, Cuticle of the. Nasmyth's Membrane. According to Mr. Nasmyth, a delicate membrane which covers the enamel, but so closely united with it, that it can be demonstrated only by the use of chlorohy- dric acid. Enamel of Porcelain Teeth. See Porcelain Teeth. ENANTE'SIS. The confluence or near approach of ascending and descending bloodvessels. ENANTHE'MA. From avdeu, to bloom. A name for certain eruptions of the mucous membrane. ENANTHE'SIS. From ev, in, and av&eo, to bloom. An eruption on the skin ; rash exanthem, including scarlet fever, measles and urticaria. ENARTHRO'SIS. From ev, in, and aptipov, a joint. A species of diarthrosis, in which the round head of one bone is re- ceived into the cavity of another, so as to admit of motion in all directions. ENAR'THRUM. A foreign body in a joint. ENCAN'THIS. From ev, and Kavdog, the angle of the eye. A tumor or excres- cence in the internal angle cf the eye. Encanthis Benig'na. A soft, red, and sometimes rather livid excrescence of the caruncula lachrymalis, which generally yields to astringent collyria. ENC 241 END Encanthis Malig / na. A malignant ex- crescence of the caruncula lachrymalis. ENCAR'POS. Pregnant. ENCATALEP'SIS. Catalepsy. • ENCATHIS'MA. Semicupium. ENCAU'MA. From ev, in, and kclvu, I burn. The scar of a burn, or the vesicle caused by a burn; also, an ulcer of the cor- nea, followed by escape of humor. Also, the old name of nitrate of silver. ENCAU / SIS. A burn; encaunia; mox ibustion. ENCEPH'ALA. A generic term ap- plied to mollusca which have a distinct head. ENCEPHALAL'GIA. Headache. Encephalalgia Hydrop / ica. Hydro- cephalus, or dropsy of the brain. ENCEPHALIC. Encephal'icus; from ev, in, keQclaij, the head. Relating to the encephalon. ENCEPHALA'TA. The great sub-king- dom of vertebrata, in which the brain is protected by a bony case. ENCEPHALI'TIS. Inflammation of the brain. Encephalitis Exsudato'ria. Hydro- cephalus internus. ENCEPHALOCE'LE. From eyKefalog, the brain, and, kijAtj, hernia. Hernia cer- ebri. Fungus cerebri. ENCEPH'ALOID. From ey/ce^aAof, and elSoq, resemblance. Cerebriform. This term is applied by Laennec to a species of morbid substance which frequently consti- tutes the mass of scirrhous or cancerous tumors, because of its resemblance to the medullary substance of the brain. ENCEPHALO'MA. Fungus cerebri. ENCEPHALOMALA'CIA. Mollities cerebri, or softening of the brain. ENCEPHALON. Enceph'alum; from ev, in, and KE^alrj, the head. The contents of the cranium, including the cerebrum, cerebellum, and medulla oblongata, with their vessels, nerves, and investing mem- branes. ENCEPHALOPHY'MATA. Tubercles of the brain. ENCEPHALO'SIS. A tumor of a brain- like appearance. ENCEPHALOPYCKSIS. From ey/c^a- Aog, the brain, and ttvov, pus. Ulceration of the brain. ENCEPHALOSIS'MUS. Concussion of the brain. ENCEPHALOZO'A. A term applied in Zoology to that division of the animal kingdom which comprehends those animals that have two nervous systems, one gangli- onic, the other cerebro-spinal. ENCHARAX'IS. Scarification. ENCHONDRO'MA. From ev, in, and xovdpog, a cartilage. A cartilaginous tu- mor. ENCHON'DRUS. Ev, in, and X ovS P oq, a cartilage. Cartilaginous. Also granular, having grains. ENCHO'RIOS. Endemic. ENCHYMCKMA. Enchymo'sis; from ev, in r and x vcj j I pour. Infusion or pouring in of blood into the cutaneous vessels, caused by joy, anger, or shame; blushing. ENCLYS'MA. From ev, in, and nAvfa, to cleanse out. A clyster. ENCCE'LIA. From ev, in, and Koilta, the belly. The abdominal viscera. ENCCELPTIS. Inflammation of the ab- dominal viscera. ENCOLPIS'MUS. Introduction, of any medicament into the vagina.. ENCYSTED. From ev, in, and Kvcrig, a bladder. Applied to a tumor or other matter inclosed in a cyst or sac. ENCYS'TIS. An eneysted tumor. ENDAN'GIFM. Endangi'on. The lining membrane of vessels. ENDEIXIS. Indication. ENDEM'IC. Endem'icus; from ev, in, and drjfiog, the people. Prevalent disease in a particular region or district of country. EN DERMIC. EndermaVic; from ev, in, and SEpjuartKo^, cutaneous. The treat- ment of disease by the application of reme- dies to the skin, especially after the removal of the cuticle. Morphia, and strychnia are often administered in this way. ENDO. From svdov, within. A com- mon prefix. ENDO-AORTFTIS. From evdov, within, and aortitis, inflammation of the aorta. Inflammation of the inner membrane of the aorta. ENDOCAR'DIAC. Within the heart; applied to sounds produced within that or- gan. ENDOCARDIAL. Evdov, within, and napdia, heart. Within the heart. 16 END 242 ENN ENDOCARDITIS. Inflammation of the lining membrane of the heart. ENDOCOLITIS. Dysentery. ENDODONTICS. FromeicW, within, odovg, a tooth, and Ms, signifying inflamma- tion. Inflammation of the lining membrane of a tooth. This may arise from exposure of the pulp-cavity and the presence or con- tact of acrid and irritating agents, or from exposure to sudden transitions of tempera- ture, or from mechanical violence, as in the case of a blow, or improperly performed dental operation. It may also occur as the result of constitutional disease. But from whatever cause produced, it is always at- tended with the severest and most agonizing pain, and is seldom relieved, when acute, by any other means than the extraction of the tooth, or the destruction of the pulp. ENDO-ENTERITIS. Enteritis. ENDO-GASTRITIS. Inflammation of the lining membrane of the stomach. EN'DOLYMPHA. The liquid contained in the membranous canals of the ear. ENDOMETRITIS. Inflammation of the lining membrane of the womb. ENDOPHLCEUM. The inner bark of a plant; the liber. ENDOSIS. Remission. ENDOSMOM'ETER. An instrument for measuring the force of the endosmotic ac- tion. EN'DOSMOSE. Endosmo'sis; from evdav, within, and uujuoc, impulse. Imbibi- tion. The transmission of a fluid through a membrane from the interior, or the passage of a thin fluid from without by a dense one within. The property depends mainly upon the capillary attraction of the walls of the cavity. Endosmose is also sometimes used to signify the passage of the more transmis- sible fluid, whilst exosmosis signifies that of the least transmissible. See Osmose. Mr. Lintot, an English dentist, and author of a small treatise on the Teeth, is of the opinion that dental caries is the result of the chemi- cal action of an acidulated fluid of the mouth, upon the dentinal tissue, while un- dergoing an endosmotic action on it. That such action might, under certain circum- stances, take place through the cells of the •dentine, is not improbable, and in the event of its occurrence, would, it is fair to pre- sume, hasten the decomposition of the part of the tooth in which it was taking place. ENDOSMOT'IC. Relating toendosmose. ENDOSPERM. Eirfov, within, and oirepy.a, a seed. The albumen between the integuments and the embryo. ENDOSTEFTIS. Inflammation of the lining membrane of a bone. EN'DOSTOME. EwJov, and aro^a, a mouth. The inner opening of the ovula. Also, a chronic tumor within a bone. ENE / CIA. A generic term applied by Dr. Good to continued fever. EN'EMA. From evujpt, to inject. An injection ; a clyster. Enema Anod'ynum. An anodyne clyster ; a clyster of starch and opium. Enema Cathar'ticum. A purging clyster. Enema Commute. A common clyster, composed of water gruel, or molasses and water, with a little oil or lard, and common salt. Enema Fo3t / idum. A purging clyster of tincture of asafoetida. Enema Nicotia'n.e. A tobacco clyster. Enema Terebin'thin^e. A turpentine clyster. ENEPIDER'MIC. Enepider'micus ; from ev, in, wrt, upon, and depfia, the skin. The treatment of disease by the application of remedies, such as plasters, blisters, &c, upon the skin. EN / ERGY. Energia; from evepyeu, I act. In Physiology, the active operation of the various organs of the body. Thus we say, the vital energy, the muscular en- ergy, the nervous eneryy, &c. ENERVATION. Enerva'tio ; from e, out of, and nerous, strength. The act of debilitating ; a state of weakness. ENGEISO / MA. Engizoma ; from eyyifa, I approximate. A fracture of the skull, in which a broken portion of bone passes be- neath a sound portion, and compresses the brain. Also, an instrument used in frac- tures of the clavicle. ENGOMPHO'SIS. Gomphosis. ENGORGEMENT. From en, in, and gorge, the throat. Iuordinate flow of blood to the vessels of a part or organ, and conse- quent obstruction aud increase of volume. ENGOUEMENT. A French term sig- nifying obstruction ; congestion. ENNUI. Mental languor : weariness. ENT 24- ENT ENOSTO'SIS. From ev t and oareov, a bone. A tumor formed in the medullary part of a bone. ENRYTH'MOS. From ev, and pvdfzog, number. Irregularity in the beating of the pulse. ENS. Being; entity; existence. In Chemistry, a substance supposed to contain, in a small compass, all the virtues of the ingredients from which it is drawn. Exs Mar'tis. Ammoniated iron. Ems Pri'mum Sola / re. Antimony. Exs Ven'eris. Chloride of copper. EN'SIFORM. From ensis, a sword, and forma, form. Sword-like. In Anatomy, ap- plied to some parts from their resemblance to a sword, as the ensiform cartilage. ENSTALAX'IS. Instillation, or drop by drop. EN'STROPHE. Inversion of a part. ENTA / SIS. Enta'sia; from evretvco, to stretch. A term applied by Dr. Good to constrictive spasm, embracing wry-neck, cramp, locked jaw, &c. ENTELMIN'THA. From evrog, within, and el/iLvg, a worm. Synonymous with En- tozoa. ENTER A. Evrepa, the bowels, from evrog, within. The intestines. ENTERAD'ENES. From evrepov, an intestine, and adyv, a gland. The mucous intestinal glands. ENTER A [/GI A. From evrepov, intes- tine, and alyog, pain. Colic ; pain in the intestines. ENTERANGIEMPHRAX'IS. Obstruc- tion of the vessels of the intestine. ENTERATROPH'IA. From evrepov, intestine, and atrophia, want of nutrition. Atrophy of the intestines. ENTERVUXiL Hypertrophy of the muscular coat of the intestines. ENTEREMPHRAX'IS. From evrepov, intestine, and e^pa^tg, obstruction. Ob- struction of the intestines. ENTEREPIPLOMPHALOCE'LE. Um- bilical hernia containing both omentum and bowel. ENTERIC. Enteri'cus ; from evrepov, an intestine. Pertaining to the intestines. ENTER'ICA. Disease affecting the in- testinal canal. ENTERPTIS. From evrepov, an intes- tine, and itis, signifying inflammation. In- flammation of the intestines. Enteritis, Follii/ular. Typhoid fever. ENTERO. A prefix ; from evrepov, an intestine. ENTEROBRO'SIS. From evrepov, an intestine, and (3puaig, the act of gnawing. Perforation of the intestines. ENTEROC'ACE. Adynamic dysentery accompanied by diphtheritis and gangrene of the colon and rectum. ENTEROCE'LE. From evrepov, an in- testine, and Krfkt], hernia, tumor. Intestinal hernia. ENTEROCYSTOCE'LE. From evrepov, intestine, nvcrtg, a bladder, and ktjTitj, a tu- mor. Intestinal hernia in which a portion of the bladder is included. ENTERQDE'LA. From evrepov, and SeXog, manifest. A section of a class of Polygastrica, in which the alimentary canal is terminated by a mouth and anus. ENTERO-EPIPLOCE'LE. From evre- pov, an intestine, erwr/ioov, the omentum, and Krilrj, a tumor. Hernia containing both in- testine and omentum. ENTERO-EPIPLOM'PHALUS. From evrepov, intestine, ennrXoov, the omentum, and opityaXog, the navel. Umbilical hernia, containing both intestine and omentum. ENTERO-GASTROCE'LE. From ev- repov, intestine, yaorjjp, the belly, and nrfkri, a tumor. Abdominal hernia. ENTEROG'RAPHY. Enterograph'ia ; from evrepov, intestine, and ypatyrj, descrip- tion. An anatomical description of the in- testines. ENTERO-HYDROCE'LE. From ev- repov, intestine, vSup, water, and KTjArj, tu- mor. Scrotal hernia, complicated with hy- drocele. ENTERO-ISCHIOCE'LE. From evre- pov, intestine, taxcov, the ischium, and nrfkr), a tumor. Intestinal hernia at the ischiatic foramen. ENTERO'LITHUS. From evrepov, in- testine, and li&og, a stone. Intestinal cal- culous concretion. ENTEROI/OGY. Enterolog'ia; from evrepov, intestine, and loyog, a discourse. Anatomical treatise on the intestines. ENTERO-MESENTERIC FEVER. Ty- phus fever attended by ulceration of the ENT 244 EOC small intestines and enlargement of the mes- enteric glands. ENTEROM'PHALUS. From evrepov, intestine, and oju, em, upon ; above ; used as prefixes, and meaning, above, exte- rior, augmentation, addition, increase, re- ciprocal action, repetition, &c. EPACMAS'TICOS. From em, and an- fiaCu, I increase. Fevers which increase in violence, from the commencement to the crisis. EPANE'TUS. From enavajfu, to remit. A generic term applied by Dr. Good to remittent fevers. Epanetus Hec'tica. Hectic fever. Epanetus Malig'nus Fla / vus. Yellow fever. Epanetus Mi /r rrs. Remittent fever. EPAPH^E'RESIS. From eita^aipeo, I take away. Repeated obstruction, particu- larly of blood. EPAR'MA. Epar'sis. A tumor. EPENDYNIA VENTRICULORUM. The lining membrane of the cavities of the brain. EPHE'BUS. From em, towards, and rift?], puberty. A term applied in Physiology to one who has attained the age of puberty. EPHEI/CIS. From em, upon, and el- nog, an ulcer. The crust of an ulcer. EPHE'LIDES. From em, upon, and qliog, the sun. Freckles ; sunburns. A cutaneous affection characterized by small and large brown spots upon the skin, caused, as the name imports, by the direct action of the rays of the sun. EPHE'LIS. Ephelides. EPHEMERA. From em, during, and vpepa, a day. In Pathology, an epithet ap- plied to disease, especially a fever, which lasts but a day, and also, by the French, to a poison which proves fatal within a day. EPHIAI/TES. From e^allopac, to leap upon. Nightmare ; a distressing sensation which occurs during sleep, in which the in- dividual fancies himself threatened by the approach of an enemy or of imminent danger from which he cannot escape. EPHIDRO'SIS. From efidpou, to per- spire. A copious, morbid perspiration. A colliquative sweat. EPICAN'THUS. From em, upon, and aav&og, the angle of the eye. A fold of skin extending from the exterior of the nose over the inner angle of the eye. EPTCARP. From em, upon, and nap- rrog, fruit. The epidermis or outer covering of fruit. EPICAR'PIUM. From em, upon, and nap-nog, the wrist. Application to the wrist. EPICHRO'SIS. From em, upon, and Xpup-a, color. Discoloration of the surface. Ephelides. EPICOI/IC. From eiu, upon, and ko- aov, the colon. The part of the abdomen over the colon. EPICON'DYLE. From upon, novdvlog, a condyle. A protuberance at the lower extremity of the os humerus, which gives attachment to the outer lateral liga- ment of the elbow joint, and to a very strong tendon to which several muscles of the posterior part of the forearm are at- tached ; and so called because it is above the condyle. EPICONDYLO-CUBITA'LIS. The an- coneus muscle. Epicondylo-Radia'lis. The supinator radii brevis. Epicondylo - Supra - Metacarpla/nus* The extensor carpi radialis brevior. Epicondylo - Supra - Phalangettianus Communis. The extensor digitorum com- munis. Epicondylo - Supra- Phalangettianus Minimi Digiti. The extensor proprius minimi digiti. EPICOPHO'SIS. Cophosis; deafness. EPICRA'NIUM. From em, upon, and Kpaviov, the cranium. Applied to various parts of the cranium, as the tendinous ex- pansion of the occipito-frontalis muscle, and even to the whole scalp. EPICRA'SIS. From em, upon, and nepavvvpt, I temper. The treatment of dis- ease by soothing and demulcent remedies, which the humorists supposed possessed the power of correcting the vitiated humors. EPICRFSIS. The judgment of the nat- ural causes, treatment, and probable termi- nation of a disease, founded on scientific principles. EPICTE'NIUM. The parts upon and above the pubes. EPIDEMIC. Epidem'icus; from em, upon, and dy/uog, the people. A disease which simultaneously attacks multitudes of persons at the same time, and in the same EPI 246 EPI district, and which is dependent on a noxi- ous condition of the atmosphere. EPIDEM'Y. An epidemic disease. EPIDEN'DRUM. A genus of plants of the order Orehidiaceoe. Epiden'drum Yanii/la. See Vanilla. EPID'ERIS. The clitoris ; the nymphae or the prepuce of the clitoris. EPIDER'MIC. Epider'mkus; from e-idep[it,q, the scarf skin. Pertaining to the epidermis. EPIDERMIS. From eiri, upon, and Sep- fia, the skin. The cuticle, or scarf skin, a thin, dry, transparent membrane, devoid of nerves and vessels, which covers all the sur- face of the body except the parts that cor- respond to the nails. It consists of minute scales, placed one above the other. EPIDERMOID. From emdepfiig, and ecSog, resemblance. Resembling the epi- dermis. EPIDESIS. In Surgery, the act of binding up a wound; also, the application of a ligature to a wounded vessel. • EPIDES'MOS. A bandage or ligature. EPIDIDYMIS. From etti, upon, and didvjioQ, a testicle. A hard, grayish, oblong substance upon the superior margiu of the testicle, formed by the convolutions of the vas deferens. It is a canal formed by the union of all the seminiferous vessels folded several times upon themselves, after having traversed the Corpus Highmoria' 'num. EPID'OSIS. From etti, and didupi, to give. Increase, as of a disease, or in the growth of the body. EP'IDOTE. A massive, crystallized, granular mineral, of a fibrous structure, and of various shades of green. EPID'ROME. From enidpefia, I run upon. An afflux of humors. EPIG^E'A REPENS. A sweet-scented running plant, flowering in early spring, the leaves and twigs of which are used like uva ursi. EPIGASTRIC. Epigas'tricus; from ettc, upon, and yaorrip, the stomach. Relat- ing to the epigastrium. Epigastric Ar / tert. An artery given off by the external iliac when it passes under Poupart's ligament, ascends between the rectus muscle and peritoneum, and anasto- moses about the umbilicus with the internal mammary artery. Epigastric Region. The region, on each side, below the short ribs, extending from the diaphragm to within two fingers of the umbilicus. EPIGASTRIUM. The epigastric re- gion, or part situated immediately over the stomach. EPIGASTROCE'LE. From etti, upon, yaoTTjp, the stomach, and kt^tj, a tumor. Hernia at or near the epigastric region, whether of the stomach or not. EPIGEN'ESIS. From etti, upon, and yEVECcg. generation. A theory of generation which regards the foetus as receiving at once from each parent the materials neces- sary for its formation. EPIGINOM'EXA. From Eire, and ye- vouai, to succeed or supervene. A term applied in Pathology to symptoms which occur in the course of a disease, but not necessarily belonging to it. EPIGLOTTIC. EpigloVticus. Pertain- ing to the epiglottis. Epiglottic Gland A collection of small glands situated at the base of the anterior surface of the epiglottis. EPIGLOTTIS. From e-l, upon, and }/.urnc, the tongue. An oval cartilage, concave posteriorly, and convex anteriorly, situated at the root of the tongue upon the superior opening of the larynx. It is loose at its superior extremity, and attached at its inferior to the thyroid cartilage. Its use is to ease the glottis, or superior opening of the larynx, and prevent the introduction of alimentary substances into the air-passages during deglutition. EPIGLOTTITIS. Inflammation of the epiglottis. EPIGLOU'TIS. From etti, upon, and ■}/.ovrtc, the buttocks. The superior region of the buttocks. EP'ILEPSY. Epilep'sia. Brabyfca; from ETTt7.au fiavu, I seize upon. A disease of the cerebrospinal organs, attended with violent convulsions, coma. and. generally, foaming at the mouth. The disease may be idio- pathic or symptomatic. In the former case it results from a morbid affection of the encephalon; in the latter, from worms, in- testinal irritation, external violence, or from some other accidental cause. EPILEPTIC. Epikp'tieus; affected with, or relating to, epilepsy. EPI 247 EPI EPILEP /r TOID. Resembling'epilepsy. EPIMOR'IOS. An unequal pulse. EPINEPH'ELOS. Cloudy; applied to urine. EPINYC'TIDES. From ern, upon, and vvtj, night. Eruptions which appear during the night, and disappear in the morning. A kind of nettle-rash. EPIPAROXYS'MUS. The too frequent occurrence of the febrile paroxysm. EPIPH^ENOM'ENON. The occurrence of any unusual symptom during the progress of a disease. EPIPHLOGIS'MA. From ettc, upon, and ^/loy^cj, I inflame. Inflammation or burning heat in any part. EPIPH / ORA. From eirifepa, I carry to. Weeping. Continued involuntary flow of tears, caused by disease, or irritation of the lachrymal passages. EPIPHYMA'TA. Diseases of the skin. EPIPHYSIS From etvl, upon, and vou, to cicatrize, or heal up a wound. Applied to remedies which promote cicatrization. EQUILIBRIUM. From ceqvus, equal, and librare, to weigh. In Medicine, har- mony in the reciprocal action of the organs of the body. EQUPNIA. From equinus, belonging to a horse. Glanders. A contagious, and sometimes a dangerous disease, produced by inoculation with certain diseased fluids gen- erated in the horse, mule, &c. Two species are met with, equinia mitis, caused by in- oculation with the fluid of grease, and equi- nia glandulosa, a malignant and usually fatal disease. EQUISE'TUM. A genus of plants, the species of which are called horsetail, or mare's-tail. See Hippuris Vulgaris. EQUITATION. From equus, a horse. Exercise on horseback. EQUIVALENTS, CHEMICAL. In Chemistry, a term introduced by Dr. Wol- laston to express the proportional weight in which elementary and compound bodies re- ciprocally unite. Elementary Substances, with their Symbols and Chemical Equivalents. Elements. Symbols. Equivalents Aluminum . . Al. 13.70 Antimony . Sb. 129.00 Arsenic . . As. 75.00 Barium . , . Ba. 68.50 Bismuth . . . Bi. 213.00 Boron . . , . B. 10.90 Bromine . . Br. 80.00 Cadmium . . Cd. 5G.00 Calcium . . Ca. 20.00 Carbon . C. 6.00 Cerium . Ce. 46.05 Chlorine . . CI. 35.45 Chromium . . Cr. 26.70 Cobalt . . . Co. 29.50 Columbium . . Ta. 184.00 Copper . . Cu. 31.70 Didymium . . D. Erbium . . E. Fluorine . . F. 18.90 Glucinum . . G. Gold . . . Au. 197.00 Hydrogen . H. 1.00 Ilmenium . 11. ERA 250 EEE Elements. Symbols. Equivalents Iodine . . . . I. 127.10 Iridium . . . Ir. 99.00 Iron . . . . Fe. 28.00 Lanthanum . . La. Lead . . . . Pb. 103.70 Lithium . . . L. 6.50 Magnesium . . Mg. 12.20 Manganese . . Mn. 27.60 Mercury . . . Mg. 100.00 Molybdenum . . Mo. 4600 Nickel . . . . Ni. 29.60 Niobium . . Nb. Nitrogen . . . N. 14.00 Noriurn Osmium . . . Os. 99.60 Oxygen . . . 0. 8.00 Palladium . Pd. 53.30 Pelopium . . Pe. Phosphorus . P. 32.00 Platinum . . Pt. 98.70 Potassium . K. 39.20 Rhodium . . R. 52.20 Ruthenium . Ru. 52.20 Selenium . . Se. 39.05 Silicon . . . Si. 21.30 Silver . . . Ag. 108.10 Sodium . . Na. 23 01 Strontium . Sr. 43.80 Sulphur . . S. 16.00 Tellurium . . . Te. 64.20 Terbium . . Tb. Thorium . . Th. 59.60 Tin . . . . . Sn. 59.00 Titanium . . . Ti. 25.00 Tungsten . . . W. 95.00 Vanadium . . V. 68.60 Uranium . . . U. 60.06 Yttrium . . Y. Zinc ' . . . . Zn. 32.60 Zirconium . . Zr. 22.40 E'QTTTV A T,T 'E. A hivnli rp in whifh it.< two valves are of similar size and form. EQUIVOCAL. From ceqvus, equal, and vox, voice. Symptoms of a doubtful nature, or which belong to several diseases. ERADICATION. Eradica'tio ; from e, from, and radix, a root. The complete re- moval, or rooting out of a disease. ERADICA'TIVE. Anything which pos- sesses the power of rooting out, or com- pletely curing a disease. ERBIUM. A metal occurring with yttria. ERECTILE TISSUE. A peculiar tissue of the animal economy, described by some writers, but not recognized by others, con- sisting of a vascular network, liberally sup- plied with nerves, and susceptible of erection by an increased flow of blood. It enters into the composition of the corpora caver- nosa of the penis and clitoris, the inferior part of the vagina and corpus spongiosum urethras; of the lips, iris, nipples, nervous papillae, &c. The same tissue is sometimes developed as a morbid structure, as exem- plified in naevus maternus, many hemor- rhoidal, varicose, polypous, and other tu- mors. ERECTION. Erec'tio. The action or enlargement which takes place in erectile tissues. Erector Clitoridis. A name applied to certain muscles, the functions of which are to raise the part into which they are in- serted. The ischio-cavernosus. A muscle, which, by drawing the clitoris downward and backward, forces the blood into it from its crus, and serves to make the body of it more tense. Erector Penis. The ischio-cavernosus. A muscle of the penis, which, by its con- traction, forces the urine and semen forward, and causes the blood to flow into the corpus cavernosum and the glans, and thus to dis- tend them. EREMACAU'SIS. From epvuog, waste, and navoig, combustion. The slow com- bustion, oxidation, or decay which takes place in organic bodies when freely exposed to air and moisture. ERETHISM. Erethis'mus; from epe- x^i^o, I irritate. Exaltation, or increase of vital phenomena in any organ or tissue. Irritation. ERETHIS'MA. Rubefacient. ERETHIS'MUS. Irritation. Erethismus Ebrio / sum. Delirium tre- mens. Erethismus Hydrophobia. Hydro- phobia. Erethismus Mercurials. A state of the constitution produced by mercury, char- acterized by depression of strength, anxiety about the prascordia, frequent sighing, irreg- ular action of the heart, small, quick, some- ERO 251 ERR times intermitting, pulse ; tremors, shrivelled countenance, a sense of coldness, &c. ERETHIT'IC. Appertaining to ere- thism. EREUG'MOS. Eructation. ERGOT. Spurred rje. See Secale Cor- nutum. ERGCKTINE> Ergotin. A peculiar principle discovered in ergot, consisting of an unctuous, reddish, neutral powder. ERGOTA. Ergot. ERGOTISM. The effects produced by ergot. ERICA'CE^E. A natural order of shrubby exogens, differing from Vaccina- cece and Campanulacece in their superior ovary; from Epacridacece, in the anther being two-celled ; from Pyrolacece and Mon- otropacece, in the structure of the seeds, and in habit ; and from all the orders repre- sented by Scropkulariacece and Gentian- acece, in the number of the cells of the ovary agreeing with the lobes of the calyx and corolla. Their general qualities are astrin- gent and diuretic, but some few are poison- ous. The Arbutus, Andromeda, Kalmia, Rhododendron, Azalea, all well-known shrubby plants of great beauty, belong to this order. ERIG'ERON. A genus of plants of the order Compositce. Erigeron Canaden'se. Canada flea- bane ; a bitter, acrid, and somewhat astrin- gent plant. Erigeron Philapei/phicum. Philadel- phia fleabane ; a biennial herb, used in ne- phritic and dropsical diseases. ERIOCAULO / NE,E. A natural order of Endogens, composed of herbaceous plants, with their flowers growing in close heads. ERODED. Gnawed. ERO'DIUM MOSCHA'TUM. Gera- nium moschatum. ERO'SION. Erosio ; from erodere, to eat away. The gradual destruction of a part by the action of a corrosive substance. Erosion of the Teeth. A species of caries, characterized by gradual decomposi- tion, first, of the enamel, and afterwards of the subjacent osseous tissue of a tooth. It has been divided by European continental writers into congenital and accidental. The former occurs previously to the eruption of the teeth and is dependent upon an acidu- lated condition of the mucous fluid contained in the sacs of the teeth ; the latter, at any subsequent period of life, and is referable to an acidulated condition of the mucous fluids of the mouth. Erosion, properly speaking, confines itself to the enamel, and is usually developed on a series of teeth at the same time. When the disease occurs subsequently to the erup- tion of the teeth, it generally develops it- self on their surfaces near the margin of the gums, and the decomposed part of the enamel is white, and of a soft, chalky tex- ture. The exposed dentine is usually very sensitive to the touch, and to impressions of heat and cold. The enamel is sometimes so badly eroded on the eruption of the teeth, as to render their presrvation almost impossible. But whether the disease be congenital or acci- dental, the treatment is the same ; for a description of which, the reader is referred to the article on caries of the teeth. EROTIC. EroVicus; from epos, love. Relating to the passion of love, as erotic melancholy, erotic delirium, &c. EROTOMANIA. Eroma'ma; from epoQ, love, and fiavia, madness. Melancholy or alienation of mind produced by love. ERPETOI/OGY. From epireroc, a rep- tile, and Aoyoc, a discourse. That branch of Zoological science which treats on reptiles. See Herpetology. ERRATIC. ErraVims; from errare, to wander. Wandering; irregular. In Pa- thology, applied to fevers which observe no regular type, and to pains and cutaneous disease which shift from place to place. ER'RHINE. ErrhVnum; from ev, in, and piv, the nose. A substance which, when applied to the nose, excites sneezing and increased secretion ; also applied to medicines which promote the secretion from the mucous membrane of the nostrils. ER'RHYSIS. From ev, in, and peu, I flow. A slight hemorrhage. ERROR LOCI. An epithet employed by Boerhaave to express deviation of fluids, when they enter vessels not destined to re- ceive them ; as, for example, when red blood enters vessels which circulate only the serous part of this fluid, they become obstructed by error of place. EEY 252 EEY ERUCA'IC ACID. A crystalline acid obtained from oil of mustard seed. ERUCTATION. Eructa'tio; ftomeruc- tare, to belch. An emission from the mouth of gas from the stomach. ERUP'TION. Ervp'tio; from ernmpere, to break or burst out. In Pathology, ac- cording to the usual acceptation of this term, the development of an exanthematous affection on the surface, and the exanthema itself. It is, however, sometimes applied to a copious evacuation of a fluid ; blood, serum, pus, or gas, from a canal or cavity. Also, the emergence of the teeth from the gums. Eruption of the Teeth. See Dentition. ERUP'TIVE. Erupti'vns. Applied to diseases, especially fevers, which are accom- panied by an eruption on the skin. ER VALEN'TA. Powder of farina ob- tained from the common lentil, said to pre- vent constipation. ERVUM LENS. The lentil. ERYN'GIUM. A genus of plants of the order Umbelliferce. Eryngium Aquaticum. Eryngium; water eryngo; button snake-root. The root is sudorific, expectorant, and, in large doses, emetic. Eryngium Marit'imum. The sea holly or eryngo. The root is slightly aromatic. ERYS'IMUM. A genus of plants of the order Cruciferce. Erysimum Allia / ria. The systematic ime of Jac hedge-mustard. ERYSIPELAS. From epvdpog, red, and 7T£?x)g, or ireAAag, a skin. A cutaneous phlegmasia, vulgarly termed St. Anthony's fire, accompanied with swelling, diffused redness, but more or less circumscribed, pain and heat, and vesications. It is an acute affection; its medium duration being from ten to fourteen days. It yields, in the majority of cases, to general refrigerant remedies. Topical applications are seldom of any use. In the majority of cases it is necessary to give tonics. Several species are described by medical writers. ERYSIPELATOUS. Belonging to ery- sipelas. ERYSOS. Epvdpog, red. Erythema. ERYTHE'MA. From epv&pog, red. Red- inflammatory blush, without fever. It is regarded also, by some authors, to be anal- ogous to erysipelas. The term is employed by Dr. Willan to designate a genus of cu- taneous diseases of the third order, Exan- themata; he enumerates six species. He defines it to be "a nearly continuous red- ness of some portion of the skin, attended with disorder of the constitution, but not contagious." Erythema Anthrax. A carbuncle. Erythema Centrif / ugum. Erythema of the face, characterized by a small red spot, which sometimes spreads over the entire face. Erythema Epidem'icum. See Pellagra. Erythema Fu'gax. An erythema of an irregular shape, and which sometimes occurs in febrile diseases and during den- tition. Erythema L^eve. A slight shining red- ness of the skin, especially on the lower ex- tremities, of persons affected with anasarca. Erythema Marginatum. Erythema bounded by a hard, irregular red border, and in which the patches are distinctly separated from each other. Erythema Mercuriale. See Eczema Mercuriale. Erythema Nodo / sum. A form of ery- thema peculiar to females, consisting of oval patches on the legs, which soon rise into hard oval protuberances. Erythema Papula'tum. Erythema which appears in irregular patches on the neck, arms, and breast, and which in about two weeks disappears, leaving a bluish hue upon the skin. ERYTH'RIC ACID. Purpuric acid ; a red substance obtained by the action of nitric on uric acid. Alloxan. ERYTHROEFDES. The tunica vagi- nalis testis. ERYTHRINE. A red coloring matter obtained from Foccella tinctoria. ERYTHROID VESICLE. A pyriform vesicle of the foetus, longer, but of the same diameter as the umbilical vesicle. ERYTHRO'NIUM. A metal called Vanadium. Also a genus of plants of the order Liliacece. Erythronium America'num. Y'ellow snake-leaf; adders tongue. A plant pos- sessing emetic properties. ESS 253 ETII ERYTHROPHYLL. The red coloring matter of leaves and fruits. ERYTHROPROTIDE. A substance resulting from the action of a concentrated boiling solution of potash on protein. ERYTHRO'SIS. From epvdpog, red. Florid plethora. ES'APHE. Examination of the uterus by touch. ES'CHAR. Es'cliara; from eaxapou, to scab over. The crust or disorganized por- tion of animal substance produced by the application of caustic. ESCHAROT'IC. Escharot' icus ; from eaxapa, eschar. Any substance which, when applied to living tissues, is capable of pro- ducing an eschar; or which destroy the life of the part to which they are applied, and produce a slough. Among the substances 'which produce this effect, are the caustic potassa, concentrated mineral acids, sul- phate of copper, &c. E3 / CULENT. Esculen'tvs ; from esca, food. Such plants and animals as may be used for food. ES'CULINE. An alkaloid obtained from JEsculus hippocastanum. ESENBECKINA. An organic alkaloid obtained from Brazilian Cinchona. ESO-. Effw, within. A prefix signifying in Pathology, an internal disease. ESOCOLPTIS. Dysentery. ESOENTERI/TIS. Inflammation of the lining membrane of the intestines. ESOGASTRPTIS. Inflammation of the inner membrane of the stomach. ES'ONTERITIS. Eaw, within, and en- teritis. Inflammation of the mucous mem- brane of the intestines. ESOTERIC. The changes resulting from internal causes proper to the organism. ESPHLA'SIS. From f2,au>, I break. A fracture of the skull, in which the fragments are depressed. ESPRIT'. A French word signifying spirit, or essence, tincture, volatile oil, or fluid. ESSENCE. Essentia. A volatile oil, obtained from plants by distillation, diluted with alcohol. ESSEN / TIA. An essence ; also, a tinc- ture. ESSEN / TIAL. Pertaining to an essence. Essential Oil. Any volatile oil. Essential Salt of Bark. A watery extract of Peruvian bark. Essential Salt of Lemons. A mixture of cream of tartar and binoxalate of potash. ES / SERA. Sora. Sare. A species of cutaneous eruption, consisting of broad, shiuing, red spots. Nettle-rash. ESTHIOM'ENUS. From eg^ico, I eat. An eroding disease, as some forms of herpes and ulcers. ES'TIVAL. ^s'tivus. Pertaining to summer, as summer diseases. E / THAL. A peculiar oily substance obtained from spermaceti ; also, termed the hydrate of oxide of cetyl. ETHER. JEther. An%>- In Chemis- try, a very light, volatile, and inflammable fluid, produced by distillation of alcohol, with a concentrated acid, especially the sulphuric. Ether, Absolute. Sulphuric ether freed from the small portion of alcohol and sul- phurous acid it contains by the process of rectification. Used in Richardson's Spray Apparatus, as a local anaesthetic. Ether, Acetic. An acetate of the oxide of ethyl. Acetic naphtha. Ether, Chloric. See Chloroform. Ether, Hydric. Sulphuric ether. Ether, Hydrochloric. The extremely volatile chloride of ethyl. Ether, Hyponitrous. Nitrous ether. Nitric ether. Ether, Muriatic. JEther hydrochlori- de. Hydrochloric ether. Ether, Nitric. Nitrous ether. Ether, (Enanthic. The aromatic li- quid which imparts to wines their peculiar odor. Ether, Sulphuric. JEther sulphuricus. Common ether, prepared by distilling alco- hol with sulphuric acid. It is a powerful diffusible stimulant, possessed also of ex- pectorant, antispasmodic, and narcotic prop- erties. Dose, 3j f° r internal use. Dose for inhalation, about two fluid ounces, the quantity being very variable in different cases. ETHEREAL. Pertaining to, or of the nature of, ether. Ethereal Oil. Oleum cethereum. The oleum vini, found in the residuum of sul- phuric ether. EUC 254 EUP ETHERIFICA/TION. The conversion of fluids into ethers. E'THERINE A solid body deposited from etherole iu the cold. It contains the same elements in the same ratio with ethe- role. ETHERIZATION. The inhaling of the fumes of ether, to produce insensibility to pain. ETHEROLE. An oily product of the decomposition of the sweet oil of wine when heated with water. It is insoluble, and isomeric with olefiant gas. Known as light oil of wine. E'THIONIC ACID. A product obtained by the action of anhydrous sulphuric acid on alcohol. EfH'MOID. Ethmdi'des; from edfiog, a sieve, and eidog, form. Sieve-like. Ethmoid Bone. Os ethmoides. One of the eight bones of the cranium, situated be- tween the eyes and ethmoidal notch of the os frontis, of a light cellular texture and cubical form. It is articulated with the frontal, lachrymal, sphenoid, superior maxil- lary, palatine, the vomer, and inferior spongy bones. E lTIMOID'AL. Applied to parts which pertain to, or are connected with, the eth- moid bone, as the ethmoidal cells, ethmoidal arteries, &c. ETHNOGRAPHY. From edvog, nation, and ypafi], description. A description of the different natural races and families of men. , ETHNOL'OGY. From edvog, nation, and loyog, discourse. A treatise on the dif- ferent natural races and families of men. ETH / YL. A term applied by Berzelius to the elementary carbo-hydrogen of ether. C,H 5 . ETIOLATION. Chloro'sis. The pro- cess of whitening plants by depriving them of light, or raising them in the dark. ETIOI/OGY. See ^Etiology. EUvE'MIA. From ev, well, and aifia, blood. A good state of the blood. EU^ESTHE'SIA. From ev, well, and aio$t]CLg, perception. Good perception. EUCALYPTUS RESINIF'ERA. An astringent gum resembling kino. EUCHLO'RINE. From ev, brilliant, and X?,upog, green. The protoxide of chlorine, so called from its deep yellow-green color. EUCHRO'NICACID. An acid obtained by the decomposition of the neutral melli- tate of ammonia by heat. EUCHYM'IA. From ev, well, and xvpog, juice. A good condition of the humors. EU / CLASE. A rare mineral, consisting of small greenish crystals, a silicate of glu- cina and alumina. EUCRA / SIA. From ev, well, and upaoig, temperament. A good temperament. EUDIOMETER. From evSta, purity of air, and fierpov, a measure. An instrument for ascertaining the quantity of oxygen or any other gas in a given mixture of gases. EUDIOM'ETRY. The art of ascertain- ing the quantity of any gas contained in a given bulk of atmospheric air. EUEX / IA. From ev, well, and e£ig, con- stitution. A good constitution. EUGENIA CARYOPHYLLATA. The clove tree of India. EUGENIC ACID. An acid obtained from cloves and Jamaica pimento. EUNUCH. Eunu'chus; from ew V , the bed, and e^w, I keep. One who has been castrated, or whose genital organs have been so altered as to render him incapable of reproducing his species. EUPATHFA. From ev, well, and iradog , suffering. Easily affected by pain ; also, health. EUPATO'RIUM. Agrimony. Also, a genus of plants of the order Compositce. Eupatobium Cannab'inum. Hemp ag- rimony. The juice is emetic and purgative. Eupatorium Perfolia'tum. Thorough- wort ; boneset. It is esteemed a tonic and diaphoretic. Dose, of powder, gr. x to xxx ; of the infusion, Jj. Eupatorium Purpu / reum. Purple- stalked eupatorium. Trumpet we^d. Eupatorium Teucrifo'lium. Wild hoar- hound. It has properties similar to the eupatorium perfoliatum. EUPEPSIA. From ev, well, and ireim*, I digest. Good digestion. EUPHLO'GIA. From ev, well, and aAog, the navel. An umbilical hernia. EXONCCKMA. From e£, and oynog, a tumor. A large tumor or protuberance. EXOPHTHAI/MIA. From e£ out of, and of&aXfiog, the eye. A protrusion of the bulb of the eye. EXOSMO'SIS. From eg, out of, and ug[ioq, impulse. Transudation. The op- posite of endosraosis. EXOSTE'MA. A genus of trees of the natural family Cinchoniacece. Exostema Carib'b.eum. The tree which furnishes the Caribbean or Jamaica cin- chona bark. Exostema Peruvia'num. The tree from which the Peruvian bark is obtained. Exostema Souza'num. The Brazilian cinchona. EXOSTOMA. From ef, out of, and (TTo/ua, a mouth. The foramen through the outer integument of an ovule. Also, exos- tosis. EXOSTOSIS. Hyperostosis; from e£ out of, and ooteov, a bone. An osseous tumor formed on the surface, or in the cavity of a bone. Three varieties are enumerated, namely, ivory exostosis, from its resemblance in structure to ivory : la- mellated exostosis, from its being developed in laminae ; and spongy exostosis, from its resemblance in structure to the tissue of bones. Exostosis of the Alveoli. The al- veoli as well as the teeth, and other osseous structures of the body are sometimes at- tacked by exostosis, which may develop itself in the form of a bony tumor, or in the thickening of their walls, and a consequent displacement of the teeth. Exostosis of the Teeth. Exostosis dentium ; Exodonto'sis. The only part of a tooth subject to exostosis is the root, and the development of the affection usually commences at or near the extremity ; ex- tending from thence upward, it sometimes covers a greater or less portion of the exter- nal surface. Occasionally, however, it com- mences on the side, and so great a deposi- tion of osseous matter takes place, that a large irregular tubercle is formed ; at other times the bony deposit is diffused regularly over nearly the whole of the root, but more frequently it is irregular. The bony matter thus deposited is generally of a denser structure than cementum, of a slightly yellowish hue, and semi-translucent ap- pearance. Although sound as well as carious teeth are liable to be attacked by exostosis, the occurrence of the affection is evidently the result of increased action of the vessels of the periosteum, arising sometimes from caries, sometimes from the loss of one or more antagonizing teeth ; and at other times from pressure of the adjoining teeth, or from malposition of a tooth, or from some operation that has been performed upon it. But none of these causes would be sufficient to produce the disease, if it were not favored by some peculiar constitutional idiosyncrasy. As the affected part of the root increases in size, the alveolus enlarges, so that the pressure of the former upon the latter is rarely very great, and hence the deposition EXP 259 EXP often goes on for years without being at- tended with much pain, but at other times it causes the tooth to ache and become sore to the touch, and in some instances it gives rise to neuralgia of the face. In the Museum of the Baltimore College of Dental Surgery, are some very remark- able examples of dental exostosis. In one, a present from Dr. E. G. Hawes, of New York, the three superior molar teeth of one side are united by a deposit of bony matter. In another, a present from Dr. Blandin, of Columbia, S. C, two upper molars are united. In a third, a present from Dr- Ware, of Wilmington, N. C, there is a de- position of bone on the roots of a first supe- rior molar as large as a hickory nut ; and on the root of a cuspidatus, placed there by the author, the deposition of osseous matter forms a bulb at its apex, the size of a large pea. But besides the above, there are in this institution many other very remarkable examples of the disease. See Harris's Den- tal Surgery. The disease, having once established it- self, does not admit of cure, and when it has progressed so far as to be productive of pain, the loss of the affected tooth becomes necessary. But as the prognosis is exceed- ingly obscure, its existence can only be in- ferred from the unpleasant symptoms to which it gives rise. When the enlargement is very consider- able and confined to the extremity of the root, and has not been followed by a corre- sponding enlargement of the alveolus around the neck of the tooth, its removal is often attended with difficulty, and can only be effected by cutting away a greater or less portion of the socket. Exostosis Steatomatodes. See Osteo- steatoma. EXOT / IC. Exoticus; from ego, with- out. That which comes from a foreign country. In Natural History and Medicine, animals, plants and medicinal agents which are procured from abroad. EXOTICO SYMPHYSIS. A union of foreign bodies or of a foreign body with the human. EXPANSION. Expansio; from ex- pandere, to spread out. The dilatation of an expandible body ; the increase of bulk or size which it undergoes by recession of its particles from one another. In Anatomy, the prolongation or spreading out of an organ, or structure, as of aponeuroses. EXPECTANT MEDICINE. Expecta'- tion. A theory which restricts practitioners of medicine to the observation of disease, without any effort to control or arrest its progress, leaving the cure to the efforts of nature, unless very alarming symptoms occur. EXPECTORANT. Expec'torans ; from ex, out of, and pectus, the breast. A .medi- cine which promotes expectoration. EXPECTORATION. Expectora'tio. The act by which mucous and other fluids are expelled from the respiratory passages. EXPECTORA'TIO SANGUINIS. See Haemoptysis. EXPEI/LANT. Expulsive ; driving out. EXPEDIENCE. Experien'iia. The knowledge of things acquired by long prac- tice. EXPERIMENT. Experimen'tum. In Medical Science, a trial made upon man or other animals with a view of making dis- coveries in the structure or functions of organs, or for the purpose of testing the effects of a new medicinal agent, or of an unknown alimentary substance. EX'PERS NUPTIA'RUM. Virgin. EXPIRATION. Expira'tio: from ex- pirare, to breathe out. The expulsion of the air from the lungs. EXPIRATORY. Expiratio'ni. An epithet applied to those muscles which, by their contraction, diminish the cavity of the chest, and thus effect the expulsion of air from the lungs. EXPLORATION. Explora'tio; from explorare, to search into. The act of in- vestigating the physical, signs of disease with the eye, hand, and stethoscope. EXPLORA'TOR. Exploring needle. A long needle inclosed in a canula, or grooved on the surface, for introducing into tumors or cavities to determine the nature of the fluids with which they are filled. EXPLORATO'RIUM. A sound. EXPRESSED OIL. An, oil obtained by pressing. * EXPRESSION. Expres'sio; from ea> primere, to press out. The separation, by pressure, of the fluids which a substance EXT 260 EXT contains. Also, the manner in which im- pressions are depicted upon the counte- nance. EXPUr/SIVE. Expel'lens; from ex- pellere, to drive out. In Surgery, a band- age used for the expulsion of pus or other fluid from a part. Also, applied to med- icines which are supposed to have the power of driving the humors toward the skin. EXSANGUIN'ITY. From ex, out of, and sanguis, blood. Bloodlessness. Ap- plied to persons who have little blood. EXSER/TUS. Protruding; sometimes applied to teeth which protrude. See Dens Exsertus. EXSEC / TION. Ex and secare, to cut. The cutting out of anything, as of a nerve. EXSICCATION. Drying. EXPUIT'ION. From ex, out of, and spuo, I spit. Spitting. EXSTIPULATUS. Without stipulae. EXSTROPH'IA. Ex'strophy; from e$, out of, and arpo, to feed. A bean. FABA'CEOUS. Faba, a bean. Hav- ing beans, of the nature of beans. FABA'RIA. See Sedum Telephium. FABRA'RUM AQUA. Forge water. FACE. Fades. The anterior part of the head, consisting of the forehead, eyes, and eyebrows, nose r cheeks, lips, and chin. In an Anatomical point of view, it consists of that portion of the head situated below and in front of the cranium. Face, Bones of. The face is formed of fourteen bones 5 namely, the two superior maxillary, the two malar, the two ossa nasi, the two ossa unguis, the vomer, the two ossa palati, the two ossa spongiosa, and the in- ferior maxillary. To these may be added the os frontis, and thirty-two teeth. Face Grippee. The pinched-in face, as seen in persons affected with peritonitis. Face Ague. Neuralgia in the nerves of the face. FA / CET. A small, circumscribed, smooth plane of bone. FA / CIAL. Facialis. Belonging to the face, as the facial nerve, facial neuralgia, &c. Facial Angle. See Angle, Facial. Facial Artery. The third branch of the external carotid. It ascends to the sub- maxillary gland, behind which it passes on to the bone of the lower jaw, — thence it goes in front of the masseter muscle to the angles of the mouth, and, finally, termin- ates at the side of the nose by anastomosing with the ophthalmic arteries. In its course it gives off the submental, inferior labial, superior and inferior corona- ry arteries, which mainly supply the eleva- tors, depressors, and circular muscles of the mouth, or those agents concerned in the first steps of digestion, — the prehension of food. Facial Nerve. The facial nerve arises from the medulla oblongata between the corpus olivare and restiforme, close by the lower margin of the pons Varolii ; it then passes forward and outward with the portio mollis to the foramen auditorium internus, which it enters and passes on to the base of this opening; here these two nerves sepa- rate, the latter going to the labyrinth of the ear, while the facial enters the aqueduct of Fallopius, where it is joined by the Vidian; it then goes on in a curved direction out- ward and backward behind the tympanum, where it parts with the Vidian, and pro- ceeds thence to the stylo-niastoid foramen, from which it emerges. At this point it sends off three branches: 1. The posterior auricular ; 2. The stylo- hyoid; 3. The digastric. The posterior auricular ascends behind the ear, crosses the mastoid process to the occipito-frontalis muscle. The stylo-hyoid is distributed to the stylo-hyoid muscle, and the digastric to the posterior belly of the digastric muscle. The facial nerve, being deeply imbedded in the substance of the parotid gland, di- vides into two branches, a superior and in- ferior ; these have frequent unions called the pes anserinus, or parofidian plexus, and send branches to the whole of the side of the face. The upper branch, called the temporo- facial, ascends in front of the ear upon the zygoma, supplying the sides of the head, ear, and forehead, and anastomosing with FAG 265 FAL the occipital and supra-orbital nerves ; a set of branches pass transversely to the cheek, rami malares, furnishing the lower eyelids, lips, side of the nose, and uniting with the infra-orbitar nerve. The inferior or cervico-facial branch de- scends, supplying the lower jaw and upper part of the neck, giving off the following branches: 1. The maxillary, which passes the ramus of the jaw and masseter muscles to the lower lip and its muscles ; 2. The submaxillary, which passes along the base of the lower jaw, supplying the muscles which arise from this part ; 3. The cervical, which go to the platysma and superficial muscles of the neck. Facial Neuralgia. See Neuralgia Faciei. Facial Vein. The vein which returns the blood of the facial artery. It generally descends obliquely on the face to the ex- ternal or internal jugular. FACIES. The face ; also, any given por- tion of an animal or vegetable body or organ. Facies Hippocrat'ica. That peculiar alteration of the human face which immedi- ately precedes death, so called from having been first described by Hippocrates. Facies Rubra. Gutta rosacea, or red face. FACTITIOUS. FactiVius; from facere, to make. That which is made by art. Arti- ficial, as factitious teeth, &c. FACULTY. FacuVtas. The power by which any function is executed. In Medical and Dental Colleges, the professors. FAECES. The plural of fcex. Alvine excretions. Also, dregs or sediment. F^EC'ULA. See Fecula. FiEX. An excretion. Also, a sediment. FAGA'RA. A genus of trees of the or- der Salicacece. Fagara Octan'dra. The systematic name of the tree which affords the Tacama- liaca, a resinous substance of a delightful odor. Fagara Piperita. A plant found in Japan and the Philippine Islands; the ber- ries of which are called Japan pepper. FAGARAS'TRUM CAPEN'SE. A South African plant, called Wild Cardamom by the colonists, used as a carminative. FAGIN. A narcotic substance obtained from beech-nuts. FAGOP'YRUM. See Polygonum Fa- gopyrum. FA'GUS. The beech. A genus of trees of the order Cupuliferce. Fagus Sylvat / ica. The systematic name of the beech tree. FAINTING. See Syncope. FAL/CIFORM. Falciformis; from/aZx, a scythe, and forma, shape, scythe-shaped. Applied to parts of the body which resemble a scythe. Falciform Process. The falx. A pro- cess of the dura mater which separates the hemispheres of the brain. FALLING SICKNESS. Epilepsy. FALLO'PIAN LIGAMENT. Poupart's ligament. Fallopian Tube. See Tube, Fallopian. FALLCKPIUS, AQUEDUCT OF. See Aqueduct of Fallopius. FALSE. Falsus. Pseudo; spurious. That which is not pure. Adulterated. De- viating from nature. False Aneurism. See Aneurism. False Conception. Conception and gestation, in which the product, instead of a well-organized infant, is a mole, or some other abnormal body. False Joint. See Artificial Joint. False Membrane. A morbid product resembling a membrane, formed from an exudation of coagulable lymph. It is pro- duced in croup, pleurisy, &c. False Passage. An accidental passage sometimes made in carelessly performed operations, as in the introduction of a cath- eter when armed with caustic. False Ribs. Cos'tce Spn'rice. The five inferior ribs, except the last two, or floating ribs, joined anteriorly to each other and to the cartilage of the last true rib. False Waters. An accumulation of serous fluid between the chorion and the amnios, discharged at different periods of pregnancy. FalsE'Wtnter's Bark. Canella alba. FALSIFICATION. From falsus, false, and facere, to make. Adulteration. FALX. A scythe. See Falciform Pro- cess. Falx Cerebel / li. A triangular process of the dura mater between the lobes of the cerebellum. Falx Cer / ebri. The falciform process. FAS 266 FAS Falx Major. The falx cerebri. Falx Minor. The falx cerebelli. Falx Peritonei. The great falx of the peritoneum. A process of the peritoneum extending from the umbilicus. FAMES. From oa^u, to eat. Famine; hunger. Fames Bovi'na. Insatiable hunger. Fames Caxi'xa. Canine appetite. Fames Lupi'na. A species of Boulimia, in which the patient eats ravenously, and passes his undigested food very soon through the aau?. FAMILY. In Natural History, a col- lection of a number of genera, allied to each other by common characters, and having a close affinity in organization. FANCY MARK. " Naevus. FANG. Ger. Fan' gen, to take, or seize, or bite. The sharp perforated tooth of ven- omous serpents; also the root of a tooth. FANON. A peculiar splint employed in fractures of the lower extremities. FARCIMEN. The equine species of scrofula called farcy. FARC 'TITS. Farcio, to stuff. Stuffed, filled, crammed. FARCY. Farcimen. Farcy Glanders. See Equinia. FAR'FARA. CoWs Foot. See Tussilago Farfara. FARFN A. From far, corn, of which it is made. Meal or flour. Farixa Amygdala'rum. Almond pow- der. Farina Fos / silis. The agaricus mine- rals ; a pure carbonate of lime or mountain milk. Fartnje Resolyentes. Resolvent flours. FARINA 'CEO US. Resembling flour. All alimentary substances which contain farina. FARING 'SUS. Farinaceous. FAR-SIGHTEDNESS. An affection re- sulting from a natural malformation of the eye. See Presbyopia. • * FAS'CIA. From fastis, a bundle. A bandage, fillet, or roller. Also, an apo- neurosis, or tendinous expansion which binds parts together. Fascia Apoxeurot / ica Femoris. See Fascia Lata, Fascia Cribriform'is. A fibrous sub- stance, pierced with numerous openings, extending from Poupart's ligament over the inguinal glands. Fascia Dividexs. A dividing bandage, used to keep parts separated from each other. Fascia Ili'aca. An aponeurotic cover- ing of the psoas and iliacus muscles. Fascia IyGUTNA'Lis. The spica bandage. Fascia Lata. The fascia of the thigh, which is attached superiorly to Poupart's ligament, the crest of the ilium, sacrum, coccyx, tuberosity of the ischium, ramus of the ischium, and pubes ; and inserted into the linea aspera of the thigh, and to the prominent points of the knee joint. Fascia Lata Muscle. The tensor vag- inae femoris, a muscle of the upper and outer part of the thigh. Fascia Pro'pria. The proper cellular envelope of a hernial sac. Fascia Sculte'ti. A bandage of sepa- rate ~ trips. Fascia Spiralis. A spiral bandage. Fascia Superficia'lis. The aponeu- rotic covering of the abdominal muse.— . Pas :a T-eormis. The T bandage. Fascia Tortilis. A tourniquet Fas ; : a T . lis. A cellulo-fibrous membrane, which lines the inner surface of the transversalis muscle. FASCIAL. Fascia'U*. Of or belong- ing to a fascia. FASCIA'TIO. The binding up with bandages a diseased or wounded par:. .'. a form of inflorescence, like that of most gi tsses. FASCICULATE. Clustered: bundled. In Anatomy, applied to nerves; and in I • t d a and leaves. FASCICULI TERETES CORDIS.— The carnea? columnar. FASCICULUS. Yromtascis. a bundle. In Anatomy, an assemblage or bundle of fibres, either muscular, nervous, or aponeu- rotic. In Phirmacy. a handful, and in Bot- any, a number of flowers closely arranged, in which the short and straight pedicles have attained nearly the same level. Fa-ciculcs Ccxea'tus. A band of fibres which ascend from the corpus innominatum of the brain over the upper part of the pons Varolii into the optic thalami. forming in its course the anterior side of the fourth ventricle. FEB 267 FEB FASCPOLA. Diminutive of fascia. A genus of entozoa. The fluke-worm. Fasciola Cine / rea. The tuberculum cinerium. FASTID'IUM CI'BI. Disgust. Aver- sion to food. FASTIG'IATE. Flat-topped. Applied in Botany to the branches of a stem when they are of equal height, and to pedicles when they elevate the fructifications in a bunch so as to be equally high. FASTING. Abstaining from food. Loss or want of appetite without any other ap- parent affection. FAT. A concrete oil contained in the cellular membrane of animals. FATTY. Adipose. Adipo'sus. Re- lating to, or of the nature of, fat. Fatty Liver. Adiposis hepatica. A diseased state of the liver, characterized by increase of bulk, and accumulation of fat. Fatty Ligament. A reflection of the synovial membrane of the knee-joint, which passes from the ligamentum patellae to the cavity that separates the condyles of the fern ur. FATU'ITY. Fatu'itas; from fatuus, foolish. Idiotism. FAU'CES. The plural of faux. The pharynx and posterior part of the mouth. Isthmus; pharynx; throat. FAUX. In the plural, fauces. In An- atomy, the opening of the throat ; in Botany, the orifice of the tube of a monopetalous corolla. FAVCKSU3. From favus, a honey- comb. Resembling a honeycomb. FA / VUS. A honeycomb. Applied in Pathology to a state of ulceration resem- bling the honeycomb. FAYNARD'S POWDER. A powder for stopping hemorrhage, said to consist of finely pulverized charcoal of beech-wood. FEATHER. In Botany, the plumose crown of a seed. FE. The symbol of iron. FEBRES. Febris. An order in the class Pyrexias of Dr. Cullen, characterized by fever without primary local affection. FEBRICO'SUS. Feverish. FEBRIC'ULA. Diminutive of febris. A slight degree of fever. FERRIFEROUS. From/e&m,a fever, Fever-bearing. Eu- an d fero, I carry, gendering fever. FEBRIFUGE. From febris, a fever, and fugare, to drive away. A medicine which possesses the property of curing or abating fever. FEBRILE. Febri'lis. Caused by or connected with fever, as a febrile pulse, &c. FEB'RIS. From ferveo, to be hot. Py- rexia; fever. A term which has been ap- plied to every case of disease in which there is an acceleration of pulse, increased heat, thirst, &c. Febris Acmas'tica. Synocha. Febris Alba. Chlorosis. Febris Ai/gida. Algid fever. A ma- lignant remittent, characterized by icy cold- ness of the skin. Febris Amato'ria. Chlorosis. Hectic fever. Febris Americana. Yellow fever. Febris AmphimerPna. A quotidian ague. Febris Ampullo / sa. Pemphigus. Febris Anabat / ica. Continued fever. Febris Angino'sa. Angina. Febris Angioten'ica. Synocha. Febris Aphon / ica. Aphonic fever. Febris Aphtho / sa. Aphtha. Febris Ar'dens. Synocha. Febris Aso / des. Bilious fever. See Asodes. Febris Bullosa. Pemphigus. Febris Carce'rum. Jail fever. Typhus gravior. Febris Castren'sis. Camp fever. Febris Catarrha / lis. Catarrhal fever. Febris Catarrha / lis Epidem'ica. In fluenza. Febris Causo'des. Synocha. Febris Choler'ica. Bilious fever. Febris Contagiosa. Typhus fever. Febris Contin'ua. Continued fever. Synochus. Febris Continua Pu'trida. Synochus. Febris Continua Ictero'des Carolin- ien / sis. Yellow fever. Febris Culicula / ris. Miliary fever. Febris Dia'ria. Ephemera. Febris Elopes. See Elodes. Febris Epia / la. A fever accompanied by irregular shivering. Febris Epidem / ica cum Angi'na. Cy- nanche maligna. FEB 268 FEC Febris Erysipelatc/sa. Erysipelas. Febris Essero'sa. Miliary fever. Febris Exanthemat'ica. An eruptive fever. Febris Fla'va. Yellow fever. Febris Gangr^eno'des. Gangrenous fe- ver. Febris Gas'trica. Gastric fever. Bil- ious fever. Febris Gastro-Adynam'ica. Gastro- adynamic fever. Febris Hec/tica. Hectic fever. Febris Hectica Malig'na Nervo / sa. Typhus mitior. Febris Hepat'ica. Bilious fever. Febris Hepatica Inflammato'ria. Hepatitis. Febris Horrif'ica. See Febris Algida. Febris Hunga'ria. Hungarian fever. Febris Hydrocephai/ica. Internal hy- drocephalus. Febris Hydro'des. Fever with profuse perspiration. Febris Hydrophob / ica. Hydrophobic fever. Febris Hysterica. Hysteric fever. Febris Ilp'aca Inflammato'ria. En- teritis. Febris Inflammatory. Synocha. In- flammatory fever. Febris Intermittens. Intermittent fever. Febris Intestina'lis Ulcero / sa. Ty- phus fever. Febris Intestino'rum. Enteritis. Febris Lac'tea. Milk fever. Febris Larva / ta. Masked fever. Febris Len'ta. Hectic fever. Syno- chus. Febris Lenta Nervosa. Typhus mi- tior, or nervous fever. Febris Lethar / gica. Apoplectic fever. Febris Lochia / lis. Lochial fever. Febris Malig'na. Malignant fever. Febris Maligna Bilio / sa. Yellow fe- ver. Febris Maligna cum Sopo / re. Typhus gravior. Febris Marasmo'des. Hectic fever. Febris Miliars. Miliary fever. Febris Morbillo'sa. See Rubeola. Febris MucVsa. Adeno-meningeal fe- ver. Mucous fever. Febris Mucosa Vermino'sa. Infantile remittent fever. Febris Nau / tica Pestilentia / lis. Ty- phus gravior. Febris Nephrit'ica. Nephritic fever. Febris Nervo / sa. Nervous fever. Febris Nosocomio'rum. Typhus gra- vior. Febris Palus / tris. Marsh fever. Febris Period / ica. Periodic fever. Febris Pes / tilens. Plague. Febris Pestilentia / lis. Pestilential fe- ver. Febris Petechials. Typhus gravior. Febris Phthis / ica. Hectic fever. Febris Pleurit'ica. Pleuritis. Febris Puer / perum. Puerperal fever. Febris Purulen'ta. Purulent fever. Febris Putrida Nervo/sa. Typhus gravior. Febris Putrida Sanguin'ea. Typhus mitior. Febris Quart a'na. Quartan fever. Febris Quinta / na. Quintan fever. Febris Quotidia'na. Quotidian fever. Febris Remit'texs. Remittent fever. Febris Remittens Infantum. Infan- tile remittent fever. Febris Rheumat'ica Inflammatoria. Acute rheumatism. Febris Ru / bra. Scarlatina. Febris Rubra Prurigino'sa. Urticaria. Febris Sanguin'ea. Synocha. Febris Sapropyra. Typhus gravior. Febris Scarlatinosa. Scarlatina. Febris Scorbutica. Scorbutic fever. Febris Syno / cha. Inflammatory fever. Febris Tab'ida. Colliquative hectic fe- ver. Febris Tertla/na. Tertian fever. Febris Tro / pica. Yellow fever. Febris Typho / I)es. Typhoid fever. Febris Urticaria. Nettle rash. Febris Variolosa. Variola fever. Febris Vesiculosa. Erysipelas. Febris Virginum. Chlorosis. FEBRURE'S LOTION. A celebrated remedy for cancer, consisting of white arse- nic, gr. x, conium, 3J, subacetate of lead, 3iij, tincture of opium, £j, and water, Oj. FECES. Faeces. FECULA. An immediate principle of vegetables, obtained by grinding or bruising FEM 269 FEE them in water, and composed of hydrogen, carbon, and oxygen. An impure starch. Feccla Amylacea. Starch. Fecula Marant^e. Arrowroot starch. FECULENCE. Fceculen'tia. The de- posit from turbid fluids. Dregs. FECULENT. Excrementitious. Of the nature of faeces or dregs. FECUNDATION. Fecvndatio ; from f ecu ado, to make fruitful. Impregnation. The act by which the germ contained in the organs of the female, receives from those of the male, the vivifying principle necessary for its development. FECUNDITY. The faculty of repro- duction, possessed by organized bodies. FEEL/ERS. Organs fixed to the mouth of insects, usually smaller than the antennae. FEET, DISTORTION OF THE. See Club-feet. FEIGNED DISEASES. Pretended dis- eases. Diseases simulated by impostors to answer some particular end, as by beggars, to excite sympathy, criminals, to escape punishment, and soldiers, to avoid service. FEL. Bile. Fel Bovi'num. The bile of an ox. Fel Natu'r.e. Aloes. FELLIF'LUA PASS'IO. Gall-flux dis- eases; cholera. FELLIN'IC ACID. An acid obtained from bilin, by digesting it with dilute hy- drochloric acid. FELLIS OBSTRUCTIO. Jaundice. FELON. See Paronychia. FEI/SPAR. A mineral of various shades of white and red, composed of silica, alu- mina, and potash, with traces of lime, and sometimes of oxide of iron. It is the chief ingredient in fine porcelain ware, and in the translucent porcelain teeth. But for the last-named purpose, the only kind suit- able for use is the pure white, or that which is nearly so. Previously to being used, it is put into a fire and heated to a red heat, then thrown into cold water. It is then broken into small pieces, and after remov- ing the impurities, reduced in a mortar to a fine powder. This is easily fused, and when united with silex and kaolin, diffuses itself, in baking, throughout the mass, giving to it a beautiful semi-transparent appearance. FEMALE. From fozmVna, a woman. FE'MEN. Inner part of the thigh. FEMIN'EUS. Female. FEMOR^E'US. Another name for the^ cruraeus muscle, an extensor of the leg. FEMORAL. Femora'lis; from femur, the thigh bone. Pertaining to the thigh. Femoral Artery. The artery of the thigh ; a continuation of the external iliac artery from Pouparts ligament, to the bend of the knee. Femoral Bone. The os femoris ; the thigh bone. Femoral Hernia. Hernia cruralis. FEMORA / LIS. The triceps cruris mus- cle. FEM'OROCELE. Femur, thigh, and KTjlrj, a tumor. The disorder termed hernia cruralis. FEM'ORO-TIB'IAL. Femoro-tibialis. Belonging to the femur and tibia. FEMUR. The os femoris, or thigh bone. FENESTRA. A window. A term ap- plied by anatomists to two orifices in the ear. Fenestra Oc'uli. The pupil of the eye. Fenestra Ova / lis. An oval-shaped ori- fice, covered by the base of the stapes, be- tween the tympanum and vestibule of the ear. Fenestra Rotunda. A round foramen, communicating with the internal spire of the cochlea, closed by a delicate membrane. FENESTRAL BANDAGE. A band- age perforated for the escape of pus or other matters. FENESTRATE. Having the appear- ance of a window ; applied to plants in which the leaves are perforated between the woody fibres. FENNEL. A plant of the genus Foenic- ulum. Fennel, Dog's. Wild chamomile. See Anthemis Cotula. Fennel, Sweet. See Anethum Foenic- ulum. Fennel, Water. Fine-leaved water- hemlock. See Phellandrium Aquaticum. FERALIS PEDICULUS. See Pedicu- lus. FER'GUSONITE. A crystallized com- pound of columbic acid and yttria with a small quantity of zirconia, oxides of tin, cerium, iron, and uranium. FEB 270 FEE FERIXE. Feri'nus. Savage, brutal. Applied to a malignant or acute disease. FERMENT. Iu Chemistry, an insolu- ble precipitate, composed of oxygen, hy- drogen, carbon, and azote, capable of ex- citing fermentation in certain solutions, as sugar, tfcc. In Humoral Pathology, an im- aginary principle, supposed to be introduced into the system, and by exciting fermenta- tion, to deteriorate the fluids, and cause diseases. FERMENTATION. Fermento/tio. An intestinal movement, developed spontane- ously, or by the agency of yeast or some other ferment, in a liquid, from which result substances not previously existing. There are three kinds of fermentation, namely, the alcoholic or vinous, the acid or acetous, and the putrid or putrefactive. FERMEN'TUM. The substance which excites fermentation. Yeast. Fermektum Cereyi'sle. Yeast: barm: the scum formed on beer during the pro- cess of fermentation. FERN". The first order of plants of the class Cryptogamia. Fern, Female. The common bark, or Pteris Aquilina. Fern, Male. Aspidium filix mas. See Fern, Male Shield. Fern, Male Shield. The Kephrodium filix mas. Polypody. Ferx, Mules. A plant of the genus As- plenium. Ferx Root. The root of Aspidium filix mas. or male fern. FERONIA ELEPHANTUM. A large plant of the family Amentaceo?, native of India, which exudes from the stem a resin- ous substance resembling gum arabic. FERRA'RIA. Scrofularia aquatica. The water figwort. FERRI. Genitive of ferrum, iron. See Iron. FERRI ACETAS. Ph. D. Acetate of iron. Iron water. Carbonate of iron and acetic acid. Dose, as a tonic and astrin- gent, five to twenty drops in water. Ferri Acetatis Tixctura. Ph. D. Tincture of acetate of iron. Ferri Alkalixi Liquor. Alkaline so- lution of iron. Ferri Alu'mi>\£ Sulphas. Sulphate of iron and alumina. A valuable astringent. Dose, from five to ten grains. Ferri Ammo'xio-Chloridum. Ph. L. Ammonio-chloride of iron. Ferri Aumoxio-Citras. Citrate of am- monia and iron. Dose, gr. v to viij. Ferri Ammo'nls Sul / phas. Sulphate of iron and ammonia. Ferri Ammo'nijb Tar'tras. Tartrate of ammonia and iron. Dose, four to ten grains. Ferri Arsexias. Arseniate of iron. Ferri Carboxas. Common iron rust. Ferri Carboxas Sacchara / tum. Ph. E. Saccharine carbonate of iron. Ferri Chloridum. Chloride of iron. Sesquichloride, Perchloride, or Muriate of iron, is obtained by dissolving sesquichloride of iron in muriatic acid : or by the action of muriatic and nitric acids on iron. It is gen- erally used in the form of Tinctura Ferri Chloridi. It is a powerful styptic. Ferri Citras. Citrate of iron. Dose, five grains or more. Ferri Cyaxuretum. Ferrocyo.nidum. Prussian blue. Ferri Ferro-Sesquictaxidum. U. S. Ferro-sesquicyanide of iron. Ferri Filum. Iron wire. Ferri Iodidum. Ph. L., E., D. and 17. S. Iodide of iron. Iodine and iron. Dose. three grains to ten or more. See Blauc- ard*s Pills of Iodide of Iron. Ferri Lactas. Lactate of iron. Lactic acid and iron. Twelve grains may be given in the twenty-four hours, in the form of lozenges. Ferri Limatura Purificata. Purified iron filings. The iron purified by the magnet. They possess the general properties of iron ; the iron becoming oxidized. Ferri et Magxesi-e Citras. Citrate of iron and magnesia. Made by dissolving hy- drated oxide of iron in a solution of citric acid, saturated with carbonate of magnesia, and evaporating to dryness. It does not constipate. Dose, four grains to fifteen, in solution. Ferri Muriatis, Tixctura. Tincture of the muriate of iron. See Tinctura Ferri Muriatis. Ferri Oxidi Squamje. Ph. D. The scales of iron from a smith's fonre. FEE 271 FEE Ferri Oxidum Nigrum. Ph. D. and E. Black oxide of iron. Iron scales. Ferri Oxidum Rdbrum. Ph. E. and D. Red oxide of iron. Iron rust. Ferri Pernttras. Pernitrate of iron. Ferri Persulphas. Persulphate of iron. Monsel's salt. Made of sulphate of iron, sulphuric and nitric acids, and distilled water. See Iron, Persulphate of. Ferri Phosphas. U. S. Phosphate of iron. Phosphate of iron and phosphate of soda. Dose, five to ten grains, as a chalyb- eate. Rarely used. Ferri Pila. Iron filings. Ferri Potassio-Tartras. Ph. L. Po- tassio-tartrate of. iron. Ferri Protocarboxas. Protocarbonate of iron. Dose, ten or fifteen grains in the course of 24 hours. Ferri Protosulphas. Protosulphate of iron. Prussian blue. Ferri Pulvis. Powder of iron, Reduced iron, prepared by passing a stream of hy- drogen gas over the sesquioxide of iron. Dose, gr. iij to vj, in a pill. Fer / ri Ramen'ta. Raspings of iron. A name for iron filings. Ferri Quinine Citras. Citrate of Iron and Quinia. Prepared from four parts of citrate of iron and one part of citrate of quinia. Used where a combination of these tonics is indicated. Ferri Sesquioxidum. Ph. L. Sesqui- oxide of iron. Subcarbonate of iron. Dose, five grains to gss an ^ more. Ferri Sesquioxidum Hydratum. U. S. Hydrated sesquioxide of iron. See Sesqui- oxide of Iron. Ferri Subcarboxas. Subcarbonate of iron. See Ferri Sesquioxidum. Ferri Sulphas. Ph. U. S., L., E. and D. Sulphate of iron. Green Vitriol or Cop- peras, made by the action of sulphuric acid on iron wire. It is tonic and anthelmintic. Dose, one grain to six and more. Ferri Sulphas Exsiccatum. Ph. E. Dried or exsiccated sulphate of iron. Sul- phate of iron exposed to a moderate heat until it is capable of being reduced to a fine powder. In this form it can be made into pills. Three grains are equal to five grains of the Sulphate. Ferri Sulphas Calcixatum. Peroxide of iron. Colcothar. Ferri Sulphuretum. Ph. U. S., D. and L. Sulphuret of iron. Ferri Tax / nas. Fer'rum tan'nicum, Tannate of Iron. Obtained by adding a solution of a salt of sesquioxide of iron, as the persulphate, to a decoction of nutgalls. It is tonic and astringent, and is especially useful in chlorosis. Ferri Valerianas. Vale'rianate of Iron. Formed by the action of valerianic acid on oxide of iron. Dose two to four grains. FERRIDCYAN'OGEN. A hypotheti- cal compound radical of iron and cyanogen. FERRIFEROUS. Ferrum, iron, and fe'ro, to bear. Containing iron. FER'RO. From ferrum, iron. A prefix in Chemistry, attached to compounds in which this element unites with cyanogen and other radicals. Ferro-Cy / anate. Ferro-cyanide. Ferro-Cyanate of Potash. The old name for ferro-cyanide of potassium. Yel- low prussiate of potash. Ferro-Cyaxic Acid. A yellow, acid, crystalline body : a compound of ferro- cyanogen and hydrogen. Ferro-Cyanide of Irox. Prussian blue. Ferro-Cyaxide of Potassium. Yellow prussiate of potash. Ferro-Cya / nogex. A hypothetical rad- ical, supposed to form the basis of the ferro- cyanides. Ferro-Prussic Acid. Ferro-cyanic acid. Ferro-Tartrate of Ammoxia. A salt of tartrate of iron and ammonia. FERRO'SO-FER'RIC OX'IDE. Magr netic iron ore. Scales from the smith's anvil. FERROUS OXIDE. Protoxide of iron. FERRUGINOUS or FERRUGIN- EOUS. Pertaining to iron rust. Chalyb- eate. FERRUGO. Ph. E. Ferri sesquiox- idum hydratum. FER'RUM. Iron. Ferrum Ammoxia'tum. Ammoniated iron. Ammonio-chloride of iron. Ferrum Oxid / atum Hydratum. Hy- drated sesquioxide of iron. Ferrum Salitum. Chloride of iron. Ferrum Tartariza / tum. Ferri sesqui- oxidum. Tartarized iron. It is one of the FEY 272 FEY mildest of the preparations of iron. Dose, gr. x to 3ss. Ferrum Vitriola'tum. See Sulphate of Iron. FER/TILE. FertVUs. Fruitful. Ap- plied in Physiology to women and the fe- male of brute animals, which are prolific. In Botany, a flower which produces a seed capable of vegetation, or which contains both male and female organs. FERTILIZATION. A term applied in Botany to the function of the pollen upon the pistil, by means of which the ovules are converted into seeds. FER/ULA. A genus of plants of the order Umbelliferoe. Ferula Africa'na Galbanif'era. The galbanum plant. Ferula Asafge/tida. The asafoetida plant. Ferula Per / sica. Stinking giant plant, supposed by some to yield the Sagapenum. FERVOR. From ferceo, to boil. A violent and scorching heat. FESTERING. Applied to a sore, sig- nifying the discharge 3 either of pus or a morbid, watery fluid. FETICIDE. From foetus, and ccedo, to kill. The destruction of the foetus in utero; criminal abortion. FET'ID. Faz'teo, to become putrid. Having a bad smell. FE'TOR. A bad smell, or stink. FE'TUS. faz'tus. Pregnant. FE'VER. Feb'ris; from fervor, heat. A disease characterized by rigors, increased heat of the skin, quick pulse, disturbed cir- culation, languor, and prostration. Fevers are divided into idiopathic and symptomatic. The former occur independently of, or with- out any apparent or local cause ; the latter are dependent upon local irritation. But these divisions admit of many subdivisions. Pinel makes the following: 1. Angeiotenic, or inflammatory fevers, situated in the or- gans of circulation. 2. The meningo-gastric, or bilious, which have their origin in the mucous membrane of the intestines. 3. Adeno-meningeal, or gastric fever, resulting from disease of the mucous follicles. 4. Ataxic, or irregular fever, affecting princi- pally the brain and nervous system. 5. Adynamic, or fever attended by great pros- tration of the vital powers. Fever, Adynamic. Typhoid fever. Fever, Asthenic. Typhus fever, or fever attended by debility. Fever, Asthmatic. An intermittent, ac- companied with symptoms of asthma. Fever, Ataxo-Adynamic. A fever char- acterized by prostration and disturbance of the nervous system. Fever, Bilious. Summer and autumnal remittent fever. Fever, Bilious Remitting. Bilious fever. Fever, Bilious Remittent, of Infants. Infantile remittent fever. Fever, Bladdery. Pemphigus. Fever, Brain. Phrenitis. Fever, Camp. Typhus gravior. Fever, Catarrhal. Adeno-meningeal fever. Fever, Cer / ebral. Phrenitis. Fever, Childbed. Puerperal peritonitis. Fever, Congestive. A fever attended with great oppression, obscure symptoms, and congestion of some viscus. Fever, Continued. Fever, at first in- flammatory, but in its latter stages typhoid. Fever, Convulsive. An intermittent fever, attended with convulsions. Fever, Digestive. The chilliness and fever which sometimes accompany digestion. Fever, Double. A complex intermit- tent, in which two paroxysms occur in a given time instead of one. Fever. Endem'ic. Remittent fever. Fever, Entero-Mesenteric. Typhoid fever. Fever, Ephemeral. A simple fever of short duration. Fever, Epilep / tic. An intermittent, accompanied with attacks of epilepsy. Fever, Eruptive. Exanthematica. Fever, Exacerbating. Remittent fever. Fever, Gastric. Bilious fever. Fever, Hospital. Typhus gravior. Fever, Ic / teric. Fever followed by jaundice. Fever, Infantile Remittent. A low fever occurring in childhood, supposed to originate from gastro-intestinal disturbance. Fever, Inflammatory. Synocha. Fever, Intermittent. Ague and fever. Fever, Jail. Typhus gravior. Fever, Lung. Catarrh. Pneumonia. FIB 273 FIC Fever, Malarious, or Miasmatic Fever. Intermittent and remittent fever. Fever, Malignant. Typhus gravior. A fever which is insidious in its attacks, and of a formidable and dangerous character. Fever, Masked. An intermittent in which the stages of the paroxysms are ir- regular. Fever, Milk. The slight febrile dis- turbance which precedes or accompanies the secretion of milk. Fever, Mixed. Synocha. Fever, Paludal. Ague. Fever, Paroxysmal. Remittent fever. Fever, Pestilential. The plague; also, typhus gravior. Fever, Putrid. Typhus gravior. Fever, Ship. Typhus gravior. Fever, Spotted. Typhus gravior, at- tended by vomiting, hemorrhages, or purple or black petechia?. Fever, Syphilitic. The fever which accompanies syphilis. Fever, Tertian. An intermittent in which the paroxysms return every third day. Fever, Typhoid. Entero-mesenteric fever. Fever, Verminous. Fever caused by the irritation of worms in the intestinal canal. Fever, Vernal. An intermittent or other fever occurring in the spring. Fever, Vesk/ular. Pemphigus. Fever, Yellow. An endemic malignant fever, supposed to be caused by miasm, of a more or less adynamic character, attended by yellowness of the skin and vomiting of black matter. FE'VERISH. A state of fever, or that causing fever. FEVIL/LEA CARDIFO'LIA. Anti- dote cocoon, a climbing shrub of the West Indies. The seeds are said to be an anti- dote to poisoning from fish ; in large' doses they are purgative and emetic. FE'VERWORT. Thoroughwort ; Eupa- torium perfoliatum. FIBRA SANGUINIS.' Fibrin. FIBRE. Fibra. In Anatomy and Botany, a simple organic filament, which enters into the textures of animal and vegetable bodies. FFBRTL. A small thread-like fibre. FIBRILLA'TUS. FibriVla. A little fibre. Disposed in very delicate filaments. FI / BRIN. Fibrine. An immediate principle of animal bodies, composed of azote, hydrogen, oxygen, and carbon, ex- isting in chyle, coagulum of the blood, and once thought to constitute the chief part of the muscles of red-blooded animals. It is solid, white, and inodorous ; heavier than water ; elastic when moist ; hard and brit- tle when dry. See Liquor Sanguinis. It is also a proximate principle of vegetables, and is very nutritious. FIBRINOUS. Fibrino'sus. That which is composed, or has the nature of, fibrin. FIBRO-CAR'TILAGE. Fibro-cartiW - go. A tissue composed of an admixture of fibrous and cartilaginous tissues. Fibro-Mucous. Fibro-muco'sus. Fibrous membranes, intimately united with others of a mucous structure ; also, membranes of a fibrous and mucous structure, as the inner membrane of the sac of a tooth. Fibro-Plas'tic. Forming fibres. Ap- plied to an organized tissue, from the cor- puscles exuded on sores. Fibro-Serous. Fibro-sero'sus. Mem- branes which are of a fibrous and serous texture. FFBROUS. Fibro'sus. Composed of fibres. Fibrous Membranes. Membranes com- posed of fibres. FIBULA. The outer, or splint-bone of the leg. FFCUS. Ficatio. In Botany, a genus of plants in the order Urticacece. In Pathol- ogy, a soft, though sometimes scirrhous, reddish, fleshy excrescence, attached by a small peduncle to the tongue, chin, eyelids, anus, or organs of generation. Ficus Carica. The fig tree. Ficus Indica. The Banyan tree, native of the East Indies. It yields a white acrid juice, said to be efficacious in toothache- The bark is a powerful tonic, and useful in diabetes. Gum-lac is obtained from this tree. Ficus Religiosa. The Pippul tree, un- der the branches of which the fabled god Vishnu, of the Bramins, is said to have been born. Ficus Elastica. A plant which fur- nishes caoutchouc in India. Ficus Sycamorus. The tree which fur- nished the wood from which the imperisb/- 18 FIL 274 FIL able mummy cases of Egypt were con- structed. FIDA. An old name for gold and silver. FIDG'ETS. General restlessness, with constant inclination to change position. FIDICINA'LES. The luinbricales mus- cles of the hand, so called from their use- fulness in moving the fingers. FIFTH PAIR OF NERVES. See Tri- geminy FIG. The fruit of the Ficus carica ; also, the tree itself. FIG 7 WORT. The popular name of a plant of the genus Scrophularia. FIL/AMENT. Filamentum; from filum. a thread. In Anatomy, a small fibre, or threadlike substance, adhering to any part. A minute cellular or nervous fibre. In Botany, that part of the stamen supporting the auther. FILA'RIAMEDDTENSIS. The Guinea worm. FILE. In Dental Surgery, a steel in- strument cut in fine furrows, and used in operations on the teeth. File Carrier. A file-holder. An in- strument employed by dentists for holding "a file while separating the molar teeth. File carriers have also been employed for holding the thin files used for separating the front teeth, but these last are little used. Those ■employed in separating the molar teeth are sometimes so constructed as to require two, one for the right, and one for the left side of the mouth; but the necessity for two has been obviated by having the part of the in- strument which holds the file so connected with the other part as to admit of being turned from side to side, or to revolve upon a serew when loosened. File, Dental. Odontorine ; ScaVprum Denta' 'Hum ; Lima Denta'ria. A tooth- file ; an instrument for the removal of a portion of one or more teeth. See Files for Separating Front, Bicuspid, and Molar Teeth. Files for Separating Front Teeth, are from three and a half to five inches in length, from a third to a half of an inch in width, and from a twentieth to a thirtieth part of an inch in thickness. Some are cut only on one side, others on both, and all are cut on both edges. Those which are cut only on one side are termed safe-sided, and are in- tended to act but upon one tooth at a time. Those which are cut on both sides are de- signed for separating two teeth preparatory to using the safe-sided. Files for Separating Bicuspid Teeth, may be oval on one side and flat on the other, or they may be shaped like the pinion file of a clock, their two sides coming nearly together at one edge, while at the other they are an eighth or twelfth of an inch apart. The length of files used for separating the bicuspid teeth, including the handle, is from six and a half to seven and a half inches. Files for Separating Molar Teeth, should be bent in such a manner as not to inter- fere with the corner of the mouth, with a file either flat or shaped like the pinion file of a clock, and from an inch and a quarter to an inch and a half in length. They are made in pairs, one for the right, and one for the left side of the mouth, and their con- struction is such that they may be used with the greatest facility on the molar teeth of either jaw. The molar teeth can be separated with much greater ease with files of this descrip- tion than with files held in a file carrier. Files for Preparing the Root of a Tooth for an Artificial Crown, are oval or half round, having a diameter as nearly equal to that of the neck of the tooth as possible. With a view of obviating the difficulty sometimes experienced in making a perfect joint between the root and crown, Dr. E. Townsend, of Philadelphia, had two files constructed, one oval and the other grooved, the former exactly fitting into the latter. But the grooved file is only useful in those cases where the crown of a natural tooth is emploved. FIL/ICES. Plural of filix. Ferns. Plants which bear their fruit on the back of their leaves. FIL'IFORM. Filifor'mis; from filum, a thread, and forma, form. Thread-like. In Anatomy and Botany, parts which re- semble the form, or have the shape of a thread, as the* filiform papilla? of the tongue, formed by the termination of the filaments of the lingual nerve, «tc. FI'LIXG TEETH. An operation for the removal of superficial caries in the approximal surfaces of the teeth, and in cases of deep-seated caries occupying the FIL 275 FIS same locality, preparatory to removing the diseased part and filling. It is, also, some- times performed for other purposes, such as separating the teeth, to obtain the neces- sary space for excavating, and for introduc- ing the filling. Separation by pressure is, however, preferable where it can be accom- plished by this method. See Harris's Den- tal Surgery. FILIX. Fern. See Polypodium. Fiux Florida. The osmonda-regalis. Filix Fcemina. PteHs Aquilina. Fe- male fern. Filix Mas. Aspidium Jllix mas. Male fern. Anthelmintic. Dose, 5j to ^iij of powdered root. FIL/LET. From filum, a thread. A little band. FILL/ING TEETH. Odontoplero'sis. An operation for arresting the progress, and preventing a recurrence of caries of the teeth, consisting, after the removal of the diseased part, in tilling the cavity with some metal, or other substance of an indestruc- tible nature. This is the most difficult operation the dental practitioner is ever called upon to perform, and, when well performed, the most certain and only means that can be applied for arresting deep-seated caries. The preservation of a tooth, when well filled, and with a suitable material, if the surface be afterwards kept constantly clean, may be regarded as certain. At any rate, it will never again be attacked in the same place by caries. It is necessary, however, that the opera- tion should be performed before the caries has reached the pulp-cavity, for after this, the chances of securing the permanent pres- ervation of the tooth are greatly diminished. For manner of filling teeth, see Harris's Dental Surgery. FILM. Common name for opacity of the cornea. FIL/TER. An instrument, generally composed of paper, linen, sponge, sand, pul- verized charcoal, or glass, properly arranged in a funnel for the purposes of filtration. FILTRATION. Filtra'tio; from fit- trum, a strainer. A pharmaceutical opera- tion, which consists in freeing a fluid from any feculent, earthy, or other insoluble mat- ters, too light for precipitation. FIL'TRUM. A filter. FFLUM. A fibre or thread. FIM / BRIA. A fringe. In Anatomy, any fringe-like body, as the fimbriated ex- tremity of the Fallopian tube. FIMBRIATED. Fringed. FIN'GER. Digitus. A small member taparing to a point. FINGERED. In Botany, digitate; having leaflets like fingers. FIR. The name of several species of the genus Abies, allied to the pines. See Pinus. Fir, Canada. The popular name of Pinus balsamea. Fir, Norway Spruce. The Norway spruce fir tree. See Pinus Abies. Fir, Scotch. The Scotch fir. See Pinus Sylvestris. Fir, Silver. The common fir. See Pinus Picea. Fir, Balsam. Canada balsam. See Pinus Balsamea. FIRE. Ignis. According to Professor Silliman, heat and light emanating visibly, perceptibly, and simultaneously from any body ; caloric. Fire-Damp. The explosive carburetted hydrogen gas of coal-mines. Fire, Saint Anthony's. Erysipelas. FIRST INTENTION, UNION BY. Adhesive inflammation without suppura- tion, as when the lips of a punctured wound are brought into immediate contact, and quickly healed without much inflammation. FISH GLUE. Isinglass; a glue ob- tained from different fish. See Ichthyo- colla. Fjsh-skin Disease. See Ichthyosis. Fish Tongue. A name given by some dentists to an elevator used for the extrac- tion of teeth, more especially their roots after the crowns have decayed and broken off. It is more frequently called carp's tongue, langue de carpe, by the French, as it is the tongue of this fish which the instrument in question is supposed most to resemble. See Elevator. FISSILE. Findo, to cleave. Cleav- able ; easily cleft or clove. FISSIP'ARA. From findo, I divide, and pario, I generate. A term applied in Zoology to animals which propagate by spontaneous fission or subdivision. FIS 276 FLA FISSU'RA. From Jindere, to cleave. A fissure, crack, or cleft. A fracture iu which the bone is not completely separated. Also, a lesion of the skin or mucous membrane, as a chap on the hand, or a deep depression in a part. FISSURE. See Fissura. Fissure Capillary. See Pilatio. Fissure of the Palate. Cleft palate. A division of the soft, and sometimes of the hard, palate. Fissure, Central. The aggregate of the cavities of the brain, regarded by Meckel as but one, in the form of a cross. Fissure, Glenoid. A fissure situated in the deepest part of the glenoid cavity of the temporal bone. Fissure of Rolando. A fissure pass- ing transversely between the two superior convolutions of the brain. Fissure, Semilunar. A notch at the anterior edge of the cerebellum. Fissure of Sylvius. A deep, narrow sulcus on each side, parting the middle and anterior lobes of the cerebrum, ascend- ing obliquely backward from the temporal ala of the sphenoid bone to near the middle of the parietal. Fissure of the Tra / gus. A fissure on the anterior surface of the tragus of the ear. Fissure, Transverse of the Brain. Fissure of BV chat. A fissure which passes beneath and behind the edge of the middle lobe of the brain, and extends beneath the hemisphere of one side to the same point of the opposite side. FIS / SUS. From findo, to cleave. Di- vided ; cleft ; cloven. FIS / TULA. A deep sinuous ulcer, kept up by an altered texture of the parts, and communicating with a natural cavity, ex- cretory duct, or secretory gland. A fistula is said to be complete when it has an ex- ternal and internal opening, and incomplete when it has but one opening. Fistula in Ano. A sinuous ulcer by the side of the rectum. Fistula Cibalis. The oesophagus. Fistula Lachrymals. An ulcerative opening into the lachrymal sac, giving egress to a puriform fluid. Fistula, Salivary. An ulcerous open- ing in the cheek communicating with the parotid duct. FISTULOUS. Of the nature of fistula. Also, plants having many tubes. FIXED. Fixus ; from Jigere, to fasten. In Chemistry, a substance not capable of being volatilized by fire. Fixed Air. Carbonic acid gas. Fixed Oils. Such as remain in a per- manent state and are not easily volatilized. Fixed Bodies. Substances which do not evaporate by heat, especially those which cannot be fused or volatilized, as carbon, &c. FIX'I DENIES. The teeth of second dentition. FIX / ITY. A property by which bodies withstand heat. FLABELLA'TION. FlabelWtio ; from flabellare, to agitate the air. Agitation of the air with a fan. FLABEL/LIFORM. Flabellifor'mis. Having the form of a fan. FLACCID'ITY. Flaccid' Has ; from fiaccidus, flabby, soft. Softness of a part. FLAG. An aquatic plant. Flag, Sweet. Acorus calamus. Flag, Water. The yellow water flag. FLAGEL'LIFORM.'Applied in Botany to a long and pliant stem ; whip-like. FLAGEL / LUM. In Botany, a trailing shoot; a runner or twig. FLAGG'S DRILL STOCK. An instru- ment invented by Dr. J. F. Flagg for drill- ing into the pulp-cavity of a tooth for the purpose of giving egress to matter formed there by the suppuration of the pulp, — an operation proposed by Mr. Fox. FLAME. A light, glowing, luminous fluid, proceeding from the surface of a burning body, and resulting from the com- bustion of its volatile particles. The flame of a spirit or oil lamp is used in mechanical dentistry for uniting or soldering the differ- ent parts of a piece of dental mechanism. FLAKE-WHITE. The oxide of bis- muth is so called from its occurring in small flakes. FLANK. The iliac region. FLASK, VULCANITE. An iron or copper box for holdiug the model and teeth in the vulcanized rubber process. See Moulding Flasks. FLASH. Extract of cayenne pepper, or capsicum, with burnt sugar, used for color- ing brandy or rum. FLE 277 FLO FLATULENCE. An accumulation of gas or wind in the stomach or intestines. FLATULENT. Windy. FLATUS. Wind in the stomach and bowels. FLAVOR. The quality of a sapid sub- stance which affects the taste or smell. FLAVUS. Yellow. FLAX. The fibre of the Linum usita- tissimum. See Linum. Flax, Purging. A plant of the genus Linum, native of Europe, and formerly used as a cathartic and diuretic. Flax-leaved Daphne. See Daphne Gnidium. FLAXSEED. The seeds of Linum usi- tatissimum. FLEABANE. A plant of the genus Inula. See Inula Dysenterica. Fleabane, Great. A plant of the genus Conijza, formerly esteemed an emmena- gogue. See Conyza Squarrosa. Fleabane, Canada. A plant of the genus Erigeron, said to possess tonic and astringent properties. FLEAWORT. An herb of the genus Plantago, bearing nauseous, mucilaginous seeds. See Plantago. FLEAM. A surgical instrument for the operation of phlebotomy. FLECK. Abrasion. FLEGMEN. See Flemen. FLEMEN. Swelling of the ankles. FLERECIN. Gout. FLESH. The soft part of animals, es- pecially the muscles. Flesh Brush. A brush for rubbing the surface of the body. Flesh, Proud. Fungous granulations. FLEXIBILITY. A property possessed by certain bodies of bending or yielding without rupture. FLEX'ION. Flex'io; from flectere, to bend. In Physiology, the action of the flexor muscles and the state of a joint bent by them. FLEXOR. A muscle, the function of which is to bend a certain part or organ. Flexor Brevis Digito / rum Pedis Per- fora / tus. A flexor muscle of the toes, situated at the middle part of the foot. Flexor Brevis Minimi Digiti Pedis. A flexor muscle of the little toe, situated at the inferior and outer edge of the metatarsal bone of the same. Flexor Brevis Pol'licis Manus. A flexor muscle of the second joint of the thumb, situated at the outer part of the palm of the hand. Flexor Brevis Pollicis Pedis. A flexor muscle of the first joint of the great toe, situated at the anterior and middle part of the sole of the foot. Flexor Carpi Radia / lis. A long thin muscle of the forearm, which serves to bend the hand. Flexor Longus Digito / rum Pedis Pro- fundus Per'forans. A flexor muscle of the toes, situated at the posterior and inner part of the leg. Flexor Longus Pollicis Manus. A flexor muscle of the thumb, situated at the anterior part of the forearm. Flexor Longus Pollicis Pedis. A flexor muscle of the great toe, situated at the posterior part of the leg. Flexor Ossis Metacarpi Pollicis. A muscle of the thumb, which serves to turn the first bone of it upon its axis. Flexor Parvus Min'imi Digiti. A muscle situated along the inner side of the metacarpal bone of the little finger. It assists the abductor muscle in bending the little finger. Flexor Profundus Per / forans. A long, thick, flat muscle of the fingers, sit- uated under the perforatus. Flexor Subli'mis ' Perforatus. A thick, flat muscle of the forearm, which serves to bend the second joint of the fingers. FLEXUO'SUS. Full of windings. FLINT. A mineral consisting of nearly pure silicious earth 5 silex. Flint-Glass. A species of glass so called because flint was formerly employed in its manufacture. It contains from 20 to 30 per cent, of lead. It is extensively used for domestic purposes ; also, in optical in- struments, and sometimes in the enamel of porcelain teeth. FLOATING RIBS. Cos'tcejlucluantes. The last two false ribs, whose anterior ex- tremities are not connected with the rest or with each other. FLOCCI. The fine down or villi which forms the nap of mucous membranes. FLU 278 FLU Flocci Volitantes. Imaginary vision of objects. See Pseudoblepsis. FLOCCITA'TION. Floccita'tio ; from floccus, the nap of cloths. Picking the bed- clothes ; a dangerous symptom in disease. FLOCCULI. See Flocci. FLOCCULUS. A small tuft; applied, in Anatomy, to the pneumogastric lobule of the cerebellum. FLOODING. Uterine hemorrhage. FLO'RA. The botanical production of any given country or district ; or a descrip- tive catalogue of the plants of any particu- lar country. FLORAL. Flora'lis; from flos, a flower. Pertaining to, growing in or on a flower. FLORES. The plural of flos. Flowers ; a term applied in Chemistry to several crystalline bodies. Flores Antimo'nii. Flowers of Anti- mony. Small elongated and very brilliant crystals of the sesquioxide of antimony. Flores Benzoes. Flowers of Benjamin. Benzoic acid. Flores Bismu'thi. A yellowish oxide of bismuth. Flores Boracis. Boracic acid. Flores Martiales. Ammonio-chloride of iron. Flores Sulphuris. Sublimated sulphur. Flores Zinci. Oxide of zinc. FLORESCEN'TIA. Act of flowering. FLORET. A little flower. FLOS. In Botany, a flower. In Chem- istry, formerly applied to whatever had a flower-like appearance, as flowers of sul- phur, &c. FLOWERS. The menses. Flowers of Benjamin. Benzoic acid. Flowers of Sulphur. Sublimated sul- phur. FLU ATE. A fluoride. FLUCTUATION. Fluctua'tio ; from fluctus, a wave. The movement or undula- tion of a fluid accumulated in a natural or artificial cavity, distinguishable by pressure with the finger. FLUID. FluVdus ; from fluere, to flow. A body, the inherent particles of which yield to the slightest pressure and move with the greatest facility in all directions. Fluids are divided into liquids or incom- pressible fluids, aud gases, or aeriform fluids. The greater part of the human body consists of fluids. Fluids of the Body. The fluids of the body consist of blood, lymph, the perspira- tory, follicular, and glandular fluids. Fluids of the Mouth The saliva fur- nished by the parotid, submaxillary, and sublingual glands, and the secretions of the mucous membrane which lines it. The saliva, in healthy persons having good constitutions, has a light, frothy ap- pearance, and but very little viscidity. In- flammation of the gums, from whatever cause produced, increases its viscidity, and causes it to be less frothy. In a healthy state it is inodorous, floats upon and mixes readily with water, but when in a viscid or diseased condition, it sinks and mixes with ic with difficulty. Irritation in the mouth, from diseased gums, aphthous ulcers, inflammation of the mucous membrane, the introduction of mer- cury into the system, or taking anything pungent into the mouth, increases the flow of this fluid, and causes it to be more viscid than it is in its natural and healthy state. M. Delabarre says : " When this fluid " (the saliva) " has remained in the mouth some moments, it there obtains new proper- ties, according to each individual's consti- tution and the integrity of the mucous mem- brane, or some of the parts which it covers. "In subjects who enjoy the best health, whose stomach and lungs are unimpaired, the saliva appears very scarce, but this is because it passes into the stomach almost as soon as it is furnished by the glands that secrete it. It only remains long enough in the mouth to mix with a small quantity of mucus, and absorb a certain portion of at- mospheric air, to render it frothy. " On the other hand, the saliva of an in- dividual, whose mucous system furnishes a large quantity of mucus, is stringy and heavy ; is but slightly charged with oxygen, contains a great proportion of azote and sulphur, and stains silver."* Increased redness and irritability of the mucous membrane of the mouth is an al- most invariable accompaniment of general acidity of these fluids. Excoriation aud aphthous ulcers of the mouth, and bleeding * Vide Traitede la Seconde Dentition. FLU 279 FCE of the gums, also, frequently result from this condition of the salivary and mucous juices of this cavity. Anorexia, languor, general depression of spirits, headache, diarrhoea, and rapid de- cay of the teeth, are very common among persons habitually subject to great viscidity of the buccal fluids. It is likewise among subjects of this kind, and particularly when the viscidity is so great as to cause clammi- ness of these juices, that the green discol- oration of the enamel of the teeth is most frequently met with. The saliva in good constitutions, and during health, is slightly alkaline, and the mucous secretions of the mouth slightly acid, but the alkalinity of the one, in this case, is sufficient to neutralize the acidity of the other. FLUIDITY. A liquid or gaseous state ; the state of a fluid. FLUID DRACHM. Sixty minims. FLUID OUNCE. Uncia. Eight fluid drachms. FLU'IDUM. A fluid. FLUKE. Disto'ma hepaVicum. A small flat worm found in the bile ducts of sheep and oxen, and sometimes in the human subject. FLUOBOR'IC ACID. A gaseous acid produced by the decomposition of fluoride of calcium, by vitrified boracic acid. FLUOR ALBUS. Leucorrhcea. Fluor Albus Malig'nus. Gonorrhoea. Fluor Spar. Native fluoride of calcium. FLUORIC ACID. The hydrofluoric or fluohydric acid, obtained by treating fluor spar with sulphuric acid. FLU / ORIDE. A compound of fluorine. FLL T/ ORINE. Fluor'inum. A halogen, known only in combination, the radical of hydrofluoric acid. It is powerfully corro- sive, dissolving silex and all the metals but lead and platinum. FLUX. Fluxus ; from fluere, to flow. In Chemistry, any highly fusible substance or mixture, as the sub-borate of soda, em- ployed in the fusion of metals. In Physiol- ogy, a natural discharge, as the menstrual flux. In Pathology, a morbid evacuation, as in cases of dysentery, diarrhoea, &c. Flux, Bilious. A discharge of bile either by vomiting or purging. Flux, Black. A mixture of charcoal and carbonate of potash, obtained by the deflagration of cream of tartar with about half its weight of nitre. It is used in the separation of metals from their ores. Flux, Bloody. Dysentery. Flux, Chemical A mixture employed to assist the fusion of minerals. Alkaline fluxes are the ones most frequently used. Flux, Crude. A mixture of nitre and. cream of tartar, used to assist in the fusion of metals. Flux, White. Subcarbonate of potash obtained by the deflagration of equal parts of cream of tartar and nitre. FLUX'ION. Flux'io; from fluere, to flow. In Chemistry, fusion. In Pathology, an afflux or determination of blood towards any organ or part of the body, as a conse- quence of irritation or inflammation. FLUXUS. A flux ; a discharge. FLY. In Zoology, a winged insect, of which there are various species. See Musca. Fly Powder. A black powder formed, by exposing metallic arsenic to a moist at- mosphere till it becomes partly oxidized. Fly, Spanish. See Cantharis. FOCAL DISTANCE. A term applied in Optics to the distance between the cen- tre of a lens and the point at which the rays meet. FOCILE. A bone of the forearm or leg. FOCUS. The point at which converging rays of light and heat come together. FCENICULUM. Anethum ; fennel ; an umbelliferous plant. Fceniculum Aquat'icum. Water fennel. Fceniculum Dulce. Sweet fennel. The seeds are carminative. Dose, J}j to £ss. Fceniculum Vulgare. Common fennel. FCETAL. Foetalis. Pertaining to the foetus. Foetal Circulation. There being no pulmonic circulation in the fcetus, the blood seems to undergo in the placenta a change similar to that which it experiences in the lungs after birth, and is conveyed from here through the umbilical vein to the liver and vena cava, by the ductus venosus. Thence it is conveyed into the right auricle of the heart. From thence a small portion is sent into the right ventricle, then into the pul- monary artery, and is returned by the duc- tus arteriosus into the aorta ; but larger portions pass directly through the foramen FOL 280 FOE ovale into the left auricle ; from thence it is thrown into the left ventricle and passes into the aorta, to be conveyed through the arte- rial system. The umbilical arteries return it to the centre. Foetal Head. The measurements of the foetal head are the Transverse, or bipa- rietal, between the parietal protubei'ances, 3? inches ; the Temporal, across the tem- ples, 3 inches ; the Occipito-mental, from the occiput to the chin, 5 inches; the An- teroposterior or Occipitofrontal, 4^ or 4£ inches ; the Fronto-mental, 3£ inches ; the Cervico-bregmatic, from the nape of the neck to the centre of the anterior fontanel ; the Traclielo-bregmatic, from the front of the neck to the anterior fontanel, 3 J inches ; and the Vertical diameter, from the vertex to the base of the cranium, 3 inches. FGETA'TION. Pregnancy. FCE'TICIDE. See Feticide. FCETOR. Fetor. From foeteo, to stink. An offensive smell. Fcetor Oris. An offensive breath. This may result from disease of the lungs or stomach, but the most frequent cause of fetor of the breath is a morbid condition of the gums, caries of, or accumulations of salivary calculus on, the teeth. Inflamma- tion, sponginess, and ulceration of the gums, and large accumulations of light brown or yellow salivary calculus, however, impart to the breath a much more offensive odor than caries of the teeth. See Gums, Diseases of, and Salivary Calculus. FOETUS. Fetus. FOIL CRIMPERS. An instrument made of thick tin, four inches wide and five in- ches long, used in Dental Surgery for fold- ing gold foil. FOLIA'CEOUS. Leafy; leaf-like. FOLIATION. Folia'tio; from folium, a leaf. The folded arrangement of leaves while in their buds. FOLIATE. Folia'tus. Leafy. FOLIUM. A leaf. FOLLICLE. See Follicule. Follicles, Ciliary. See Meibomian Glands. Follicles, Dental. See Dental Folli- cles. FOL / LICULE. Follic'ulus; diminutive offollis, a bag. A little bag. In Anatomy, a simple gland or involution consisting of a roundish hollow, and an excretory duct, like the mucous and sebaceous follicles. In Botany, a seed-vessel. Follicule, Ciliary. See Meibomian Glands. Follicule, Dentaire. See Dental Follicles. FOLLICULUS FELLIS. The gall- bladder. FOMENTATION. Fomenta'tio. A partial bathing with simple or medicated warm water, effected with cloths previously dipped in it, and then applied to the part. FOMEN'TUM. Fomentation. FOMES. Literally fuel. In Medical Language, substances imbued with conta- gious effluvia, as woollen goods, cloths, &c. Fomes Morbi. In Pathology, the excit- ing cause of a disease. FOM'ITES. Plural of fomes. FONS PULSANS. A fontanel. FONTA'NA, CANAL OF. A trian- gular canal at the inner side of the ciliary circle of the eye. FONTANEL'LA. A fontanel. Diminu- tive of fons, a fountain. The opening be- tween the frontal and parietal bones, which is not closed until about the third year after birth. There is, sometimes, a second open- ing between the occipital and parietal bones, the first is called the anterior fontanel, and the other, the posterior fontanel. FONTIC'ULUS. An abscess. A small ulcer or issue produced by art. FOOD. Nutrient, digestible substances, not combined with poisonous ingredients. FOOT. Pes. The lower extremity of the leg, or that part on which an animal stands or walks. Foot-Bath. Pediluvium. Foot, Flat. See Kyllosis. FORA'MEN. From foro, I pierce. A little opening. Foramex Centra'le. See Foramen of Soemmering. Foramex Coz/cum. An opening in the base of the cranium between the ethmoid and frontal bones. A depression near the root of the tongue has also received the ap- pellation of foramen coecum, as well as a little sulcus between the corpora pyrami- dalia and the pons Varolii. Foramex Incisi'vum. A foramen be- hind the incisor teeth of the upper jaw, FOR 281 FOE common to the two bones below, but proper to each above. Foramen Lac'erum Ante'rius. The opening between the greater and lesser wing of the sphenoid bone, through which the third, fourth, first branch of the fifth, and the sixth pair of nerves, and ophthalmic artery, pass. Foramen Lac'erum in Basi Granii. A foramen in the base of the cranium, which gives passage to the internal jugular vein and the eighth pair and accessory nerves. Foramen Magnum Occipitis. The great opening at the base and anterior part of the occipital bone. Foramen Monroia'num. The aperture beneath the anterior part of the body of the fornix, through which the lateral ventricles of the brain communicate ; called so after Monro, the discoverer. Foramen of Soemmering. The central foramen or depression in the retina. Foramen of Winslow. An opening in the omentum situated behind the capsule of Glisson. Foramen Opticum. The opening through which the optic nerve passes. Foramen Ovale. The opening between the two auricles in the heart of the foetus. Also, a foramen of the sphenoid bone. Foramen Rotun'dum. See Fenestra Rotunda. Foramen Supra-Orbitarium. The su- pra-obital hole, or notch on the ridge over which the eyebrow is placed. It gives pas- sage to the superciliary artery. Foramen Vesalii. A scarcely percepti- ble hole between the foramen rotundum and foramen ovale of the sphenoid bone. FORAMINA. The plural of Foramen ; which see. FORAMINA THEBE'SII. Openings in the right auricle of the heart, through which the blood from the substance of the auricle enters that cavity. FORBES'S GOUGE. A dental instru- ment, consisting of a socket-handle which receives a screw clamp, and this receives a number of bits of various forms, which fit into the clamp, and are grasped by it, as it is screwed into the handle. The bits are gouge, chisel, and V-shape, for opening and enlarging crown-cavities of molar teeth. FORCE. From fortis, strong. Any power which determines an action. By muscular forces, is meant the power of the muscles ; vital forces, the powers inherent to organization, &c. FOR / CEPS. From ferrum, iron, and capio, I take. An instrument for taking hold of, and extracting bodies or parts which it would be difficult to seize or remove with the fingers. Forceps for Extracting Teeth. Tooth forceps. This was probably among the first, and, perhaps, almost the only instrument employed for the extraction of teeth, until the invention of Garengeot, in the early part of the eighteenth century. But from the time of Celsus, who wrote in the first century of the Christian era, down to this period, the forceps used for the extraction of teeth were so rude in their construction, and so illy adapted to the purpose, that for the removal of the molar teeth, the employ- ment of the key instrument soon became general, both among dental and medical practitioners. Forceps for the Extraction of the Upper Incisors and Cuspidati. For the extraction of the upper incisors and cuspidati, one pair of forceps only is necessary. These should be straight, with grooved or crescent-shaped jaws, accurately fitted to the necks of the teeth, and thin, so that when it becomes necessary, from the decay of the tooth, they may be easily in- troduced under the gum, up to the edge of the alveolus. Their handles should be large enough to prevent them from springing in the hand of the operator, one of which should be bent at the extremity, as recommended by Mr. Snell, so as to form a hook to pass around the little finger, to prevent the hand of the operator from slipping, which, in the extraction of a firmly articulated cuspidatus, and especially, when moist from perspira- tion, it is liable to do. Forceps for the Extraction of Bicuspids of both Jaws and the Lower Cuspidati. Forceps for the extraction of the above- mentioned teeth should be bent, so as to be easily and readily applied to them ; their jaws should be narrow, thin, and slightly grooved. If but one pair be employed, FOR 282 FOE which is all that are really required, both handles must be straight. Forceps for the Extraction of the Upper Molars. For the extraction of the upper molars, two pair, one for each side, are required. Those described by Mr. Snell are curved just below the joint, so that the jaws of the beak form an angle with the handles, of about twenty or thirty degrees, or just enough to clear the lower teeth. The inner jaw of each is grooved to fit the palatine root or side of the neck of a superior molar, while the outer jaw has two grooves in it, with a point in the centre to fit the depres- sion just below the bifurcation of the two outer roots. One of the handles is bent, forming a hook. This passes around the little finger of the hand of the operator and prevents it from slipping. The handles should be large enough to prevent them from springing under the grasp of the hand ; wide, and accurately fitted to it; and their length should not exceed five or five and a half inches. The beak should not be bent any more than is absolutely necessary to prevent the handles from coming in contact with the lower teeth, for in proportion to the greatness of the curvature, will the force applied to the instrument be disadvantage- ous^ exerted. Forceps for the Extraction of the Lower Incisors. The lower incisors being narrower than any of the other teeth, require very narrow- beaked forceps for their removal, to prevent interfering with the teeth adjoining the one upon which the instrument is applied. Their width should not exceed the twelfth part of an inch. The beak should be bent to an angle of about twenty-five degrees. Forceps for the Extraction of the Lower Molars. Each jaw of the beak of the lower molar forceps recommended by Mr. Snell, has two grooves, with a point in the centre, which, in grasping the tooth, comes between the two roots just at their bifurcation. Mr. S. employs two pair for the extraction of the lower, as well as the upper molars, in order, as he says, to have a " hook to turn round the little finger," supposing that this must be on opposite sides of the instrument. But this is rendered unnecessary by an improve- ment made by the author in 1833, which consists in having the handle of the instru- ment so bent that it may be as readily ap- plied to one side of the mouth as the other, while the operator occupies a position at the right and a little behind the patient. By this improvement, the necessity for two pair is wholly superseded, and it moreover enables the operator to control the head of his patient with his left hand, rendering the aid of an assistant wholly unnecessary. Forceps for the Extraction of the Denies Sapientice. The forceps described for the extraction of the bicuspids of both jaws and the can- ines of the lower, are, in the majority of cases, as well suited for the removal of both the upper and lower wisdom teeth as any instrument that can be employed for the purpose. It sometimes happens, however, that the crowns of the upper second molars are so much longer than the dentes sapien- tiae as to render their application exceed- ingly difficult and often impossible. To ob- viate this difficulty, Dr. Edward P. Church, about twenty-three years ago, had a pair of forceps constructed with a beak bent above the joint, so as to form nearly two right angles. This has proved to be a very valu- able instrument not only for the purpose for which it was originally designed, but also for the extraction of roots of teeth situated immediately behind a long-crowned bicus- pid or molar. Forceps, Compound Screw, Hullihex's. An instrument combining the advantages of the conical screw and upper incisor forceps, invented by Dr. S. P. Hullihen. for the ex- traction of the roots of the upper incisors and cuspidati. It is thus described by the author: " Lengthwise, within and between the blades of the beak, is a steel tube, one end of which is open ; the other solid and flat, and joined in a mortice in the male part of the joint of the forceps. When the j forceps are opened, this joint permits the tube to fall backward and forward from one blade of the beak to the other, without any lateral motion. Within this tube is a spiral spring which forces up a shaft two-thirds of FOE 283 FOE the tube, the other part is a well-tapered or conical screw The shaft and tube are so fitted together, and to the beak of the forceps, that one-half of the rounded part of the shaft projects beyond the end of the tube ; so that the shaft may play up and down upon the spring/' about half an inch, and the screw or shaft be embraced between the blades of the beak of the instrument. "The forceps," says Dr. H., " are used, by first embracing the shaft between the blades." " Then screwing it as gently and deeply as possible, the blades are opened, pushed up on the root, which is then seized " and extracted. " The screw thus combined with the for- ceps," as is justly remarked by Dr. H., "prevents the root from being crushed. It acts as a powerful lever when a lateral mo- tion is given ; it is likewise of advantage when a rotary motion is made ; it prevents the forceps from slipping, or of their action being lost, should even one side of the root give way in the act of extracting it; and is used with equal advantage where one side of the root is entirely gone." Forceps, Compound Screw, Dubbs's. Similar to Hullihen's, except that the screw works with a ratchet instead of a spring. Forceps, Crane's. Two pair of forceps designed by Dr. J. W. Crane, of New York, for the extraction of the lower molar teeth, one for the removal of the first and second molars on either side of the lower jaw, and the others for the third molars, or dentes sapientise. The beaks and handles of these instruments are so bent as not to interfere with the teeth of the upper jaw, and at the same time so constructed as to give the operator a firm grasp upon them. Forceps, Maynard's. Two instruments, a right and left, invented by Dr. E. May- nard, for the extraction of the roots of the upper molars before they have become sep- arated from each other. The outer jaw of each instrument is brought to a sharp point for perforating the alveolus between the buccal roots, and for securing between them a firm hold, while the inner nib is intended to rest upon the edge of the alveolus, and embrace the palatine fang. Forceps, Duck-bill. A form of forceps having gouge or duck-bill shaped beaks. Root forceps with beaks of this shape were first introduced by Dr. Parmly. These beaks are now applied to incisors and bicus- pid forceps, and are found to be very ser- viceable. Forceps, Excising. A form of forceps with cutting edges, about an eighth of an inch wide, used for clipping off a portion of the crown of a tooth, in preparing the root for an artificial crown. Forceps, Separating. A form of forceps with curved cutting edges, but at almost a right angle with the handles. Used for the separation of roots of teeth, where they di- verge greatly. They are also used as eleva- tors, the tooth in front of the one to be ex- tracted acting as a fulcrum. FOREARM. Cu'bitus. Pars inferior brachii. The portion of the extremity ex- tending from the elbow to the hand. FORENSIC MEDICINE. The appli- cation of medical science to the solution of judicial questions. FORESKIN. The prepuce. FORFEX. A pair of scissors ; also, an iron hook. Forfex Denta / ria. A hook used by dentists for the extraction of roots of teeth. The point is shaped something like the ex- tremity of a hook used with the key instru- ment. Some are forked, and others are slightly crescent-shaped. It is particularly applicable for the removal of roots of molar teeth on the left side of the mouth, after they have become partially loosened. It was formerly much more generally used than at present. FORFIC'ULA AURICULA'RIA. The earwig ; an insect of the order Orthoptera, which enters the external auditory meatus and causes severe pain by its presence in that canal. It is killed by blowing tobacco smoke or dropping oil into the ear. FORGE. See Furnace, Forge. FOR / MAL. Basic formate of methyl, obtained by distilling equal parts of wood- spirit, peroxide of manganese, sulphuric acid and water. It is a colorless, aromatic fluid. FORMIC ACID. Acidum formicum. An acid found in the ant, or Formica rvfa y and obtained by distillation. It is also pre- pared artificially. FORMFCA. The ant; a genus of in- sects. Also, the name of a black wart with a broad base and cleft surface. The epithet FOS 284 FEA is applied, too, to a varicose tumor which appears on the anus and glans penis. FORMICATION. A slight tingling sensation, such as one might suppose would be produced by a number of ants creeping on a part. FORMULA. From for ma, a form. A medical prescription. In Chemistry, the algebraic expression of the constitution of a body. FORMULARY. A collection of medi- cal prescriptions or formulae. FOR'MYL. The radical of formic acid. C 2 H 2 . FOR'MYLE, PERCHLORIDE OF. The fluid substance of chloroform. FORMIC ATE. Arched ; vaulted. FORNIX. An arch or vault. A med- ullary body beneath the corpus callosum is so called, because, in one direction, it pre- sents an arched appearance. FOS / SA. From fodio, I dig. A cavity with an orifice wider than the base. Fossa, Amygdaloid. The depression in which the tonsil is lodged. Fossa Amyn't^e. A double-headed band- age used in fractures of the nose. Fossa Cerebei/li. The inferior occipi- tal fossa. Fossa Corona'lis. A depression in the orbital plate of the frontal bone. Fossa Coronoi'dea. The depression in the humerus for receiving the coronoid pro- cess of the ulna. Fossa Hyaloide'a. A depression in the vitreous humor for the reception of the crystalline lens. Fossa Innomina'ta. The space between the helix and antihelix of the ear. Fossa Lachryma'lis. A depression in the frontal bone for the reception of the lachrymal gland. Fossa Magna. The great groove of the ear. Also, the pudendum muliebre, or vulva. Fossa Menta'lis. The depression on the side of the symphysis of the lower jaw. Fossa Navicular's. The dilatation to- wards the extremity of the spongy portion of the urethra. Also, the name of a small cavity within the fourchette. Fossa Pituita'ria. The sella turcica, or cavity in the sphenoid bone for receiving the pituitary body. Fossa Sylvia. The fifth ventricle of the brain. Fossa Ovalis. A depression in the right auricle of the heart, occupying the place of the foramen ovale in the foetus. FOSSIL. From/o^'o,ldig. Literally, anything dug out of the earth, but usually applied to the organic remains of animals and vegetables. FOTHERGILL'S PILLS. Pills com- posed of aloes, colocynth, scammony, and oxide of antimony. FO'TUS. A fomentation. Fotus Communis. A decoction of pop- pies. FOURCHETTE. Fur'cula. A fork. In Surgery, a forked instrument used for rais- ing the tongue in the operation of dividing the frainum. In Anatomy, the posterior commissure of the labia magna; the carti- lago ens if or mis ; and the semilunar notch of the sternum. FOUSEL OIL. Fusel oil. Oil of grain, or potato-spirits. FO'VEA. From fodio, I dig. A slight depression ; the pudendum muliebre. Also, a vapor bath. FOWLERITE. Manganese spar. FOWLER'S SOLUTION. Liquor Ar- senicalis. An arsenical solution, colored and flavored with compound spirit of laven- der. It is similar to the arsenical solution of the Pharmacopoeias. One drachm of this solution is equal to one half a grain of Ar- senic. Dose, gtt. x to gtt. xv. FOXGLOVE. Digitalis purpurea. FRACTU'RA DENNIS. Fracture of a tooth, which see. FRxlC'TURE. Fractu'ra; from fran- gere, to break. In Mineralogy, the surface of a broken mineral, a character which is important in the diagnosis of different species. In Surgery, the breaking of a bone in two or more pieces ; the solution of continuity. See Fracture, Comminuted, &c. Fracture of the Alveolar Processes. An accident which more frequently results from the extraction of teeth by unskilful hands than from any other description of mechanical violence. " The danger of the occurrence of this accident,'' as Maury very properly observes, " also depends upon sev- eral circumstances, as the adhesion of the tooth to the socket by its periosteum, the FKA 285 FKA thickness of the alveolar walls, the length, number, curvature, and divergence of the roots, &c.;" and, as Mr. Thomas Bell cor- rectly remarks, " as many of the molars oc- cupy a considerably smaller space at the neck, where the edge of the alveolus sur- rounds them, than at the extremities of the diverging roots, it is obvious that no tooth of such form can be extracted, without more or less yielding of the alveolar process. This should, if possible, be confined to a simple fissure in that part towards which the tooth is moved ; but even should a small portion of boue be attached to the side of the tooth, and be removed with it, not the slightest injury is inflicted by such a circumstance, unless it should extend to the next tooth, and partially denude it of its support. If the portion of alveolar process which is broken should still remain in the socket, attached to the inner part of the gum, it is better at once to remove it, which may be easily done with a pair of common dressing forceps." Very serious accidents of this nature sometimes occur in the extraction of teeth, when the requisite care and skill are not exercised in the operation. Cases are on record in which nearly half of the jaw has been brought away in an attempt to extract a tooth. FRACTURES OF THE MAXILLARY BONES. Fractures of these bones may be produced by violent blows or falls on the face, or by gunshot injuries. A fracture of the upper jaw implies the application of direct mechanical injury, in a concentrated and severe form. It is always accompanied by severe injury of the soft and hard parts, and is usually easy of recognition. Violent inflammation generally follows, requiring prompt measures for its relief. Fractures of the lower jaw may occur near the sym- physis, or between this point and the coro- noid process of the ramus, and at one or two places. The condyloid or coronoid process may be fractured, or the alveolar border, and the solution of continuity may be per- pendicular with the base, oblique, or lon- gitudinal, and as the accident is the result of great mechanical violence, the soft parts are generally more or less injured. The symptoms of fracture of the lower jaw are pain, swelling, and inability to move the jaw, and irregularity of the teeth, because the anterior fragment is generally drawn downwards by the muscles arising from the hyoid bone, whilst the posterior fragment is fixed by the temporal. On moving the chin, whilst the hand is placed on the pos- terior fragment, crepitus will be felt; and the gums are lacerated and bleeding. The symptoms of the fracture of the ascending ramus are often obscure, but the chief signs are great pain, difficulty of motion, and obscure crepitus. A method of treating fractures of either or both of the maxillary bones by means of a very ingenious apparatus devised by Dr. J. B. Bean of Baltimore, has received the highest encomiums of some of the most eminent surgeons of America and Europe, and was used by the inventor during the late war, in over fifty cases of gunshot wounds and fractures of these bones, with the most perfect success, and in many cases that were unmanageable by the ordinary course of treatment. The apparatus con- sists of an improvement on the gutta percha interdental splint of Prof. Frank Hamilton of New York, together with the Mental Compress and Occipitofrontal Bandage contrived by Dr. Bean. The Interdental Splint is composed of vulcanized rubber, so constructed as to ac- curately fit the crowns of the teeth, of the jaw which is uninjured — or that which is least injured — and to hold the fragments of the broken jaw, three or four lines apart from its usual antagonism, in their proper relation to each other, and in the exact position they would have been, had the patient opened bis jaws to that extent, pre- vious to being injured. The apparatus em- ployed to effect the construction of this splint, is the Maxillary Articulator and the Condylomeier, together with the usual appliances employed in taking impressions in wax, making plaster moulds, and vul- canizing India rubber in the dental labora- tory. The Maxillary Articulator is a skele- ton model of the jaws, consisting of an upper and lower metallic plate, attached to a sliding hinge joint by means of pliable leaden wires. The Condylometer consists of a single flat metallic plate, having on one side some soft wax, for taking an impression of the FKA 286 FEA crowns of the teeth of the uninjured jaw; and from each side of this proceeds a pli- able leaden wire, bending around toward the condyles of the jaw; the ends pointing to the centre of motion in the glenoid cavity, a point situated about two or three lines in front of the auditorius externus, and on a line with it and the tip of the nose. The softened wax on the plate of the Condy- lometer being impressed upon the crowns of the teeth of the uninjured jaw, and the wires accurately adjusted to the points mentioned, it is taken from the mouth of the patient and transferred to the plaster of Paris model of the same jaw, which has been previously prepared from impressions taken in wax, and attached to the upper or lower plate (as the case may be), of the Maxillary Articulator; the hinge joint of the Articulator is then carefully adjusted by sliding, bending the wires, &c, so as to correspond to the points of the wires of the Condylometer, and secured in position by means of wax ; casts of each fragment of the fractured jaw are now placed in their normal position and correct antagonism on this model of the uninjured jaw, and secured by drops of melted wax; then the remaining plate of the Articulator attached securely by means of wax to these fragments. There is thus constructed a complete working model of the patient's jaws, having the same mathematical proportions and mechanical motions. Patterns of a splint of any form desired may now be built up of wax be- tween these plaster models of the teeth, so as to hold the jaws sufficiently wide apart to allow the introduction of soft food, and at the same time hold the teeth in such a position as to insure a perfect antagonism after union of the bone has taken place. In fractures of the lower jaw the splint is built up between the molars and bicuspids on each side (varied, however, according to the position of the fracture in the dental arch), and extended across the palatine sur- faces of the incisors, connecting the two sides together. In fractures of the superior maxillary, it will sometimes be necessary to embrace the crowns of all the upper teeth in the splint. The pattern splint being sat- isfactorily completed, the wax, which at- tached the plaster models to the plates of the Articulator, is carefully melted by heat- ing the plates, and the whole (including the plaster models and waxen splint) is taken out, and invested in the ordinary flask with plaster, as for a set of teeth ; the wax re- moved, the vacancy filled with rubber and vulcanized. As early as the nature of the case will admit of, the finished splint is placed in the mouth and the teeth and frag- ments, adjusted to their corresponding in- dentations in the splint, where they are securely held by the compress and bandage. The Occi pi to-frontal bandage is composed, of a band passing around the head, from the forehead to the occipital protuberance behind, and secured by a buckle, one inch to the right of the median line behind; of another strip secured to the band in front, and passing over the head to the buckle be- hind; and a third strip, extending from the temporal buckles on either side, and secured to the middle strip at the point of crossing. The Compress is composed, usually, of a light piece of wood, four and a half inches in length, three-sixteenths of an inch in thickness, and one inch and a half in width, in the middle, tapering to seven-eighths of an inch, and rounded at the ends; to each of which is attached a stiff metallic side- piece, four or five inches in length and from three-fourths to one inch in width; also, a shallow cup fitting the apex of the chin. Incasing these side-pieces are the temporal straps, made of stout cloth, and secured by a strong cord at the base of each piece, and when on the patient, buckling to the band on each side. In the numerous cases men- tioned, in which this apparatus has been applied, many of the wounds were serious compound comminuted fractures, mostly of the inferior, but several were fractures of the superior maxilla; and in one case, which was completely cured, both boues were frac- tured and much displaced. The splints and bandages were usually applied in from seven to twelve, and even twenty days after the injury; and many fragmeuts of bone containing teeth, which would evidently have been lost by the usual treatment, were pre- served in their proper position and correct anatgonism with the opposite teeth, and rendered useful in mastication. In resec- tions of the lower jaw this apparatus was peculiarly useful in retaining the remaining side in position until the ligamentous uniou FBM 287 FKA had been completed; thereby preserving the correct antagonism of the teeth, in those cases that almost invariably result in a re- cession of the remaining half of the jaw, towards the resected side, consequently ren- dering it entirely useless for mastication. Surgeons have especially observed a great advantage in Dr. Bean's method of treat- ment, particularly in army hospital practice, in the complete reliability of the fixtures after being applied to the patient; being easily managed by an ordinary nurse; not easily displaced by the motions of the pa- tient while in bed, and uniformly giving great ease and comfort after being once properly adjusted. Fracture of a Tootii. Odontocla' 'sis ; FractnWa den'tis. This is an accident of daily occurrence. The molars, and even bicuspids, are sometimes so securely articu- lated as to render extraction difficult, and occasionally impossible, without fracturing one or more of their roots, especially when the alveolar processes are firm and unyield- ing. In this case, if the fractured portion is not deep, it should always be removed, though, in so doing, it may be necessary to cut away a small portion of the edge of the alveolus. But when it is deep, and not pro- ductive of pain or inconvenience to the patient, it may be suffered to remain, until by the gradual destruction and filling up of the alveolus, it can be reached with a pair of forceps or elevator, when it may be readily removed. Fracture, Comminuted. Where the bone is broken or crushed into several pieces. Fracture, Compound. Where the frac- ture is accompanied with laceration of in- teguments, causing an external wound. Fracture? Simple. Where the bone only is divided, without an external wound. FR^N'ULUM. A little framutm Frenulum Labio / rum. Fourchette. Frenulum Ve / li Medulla / ris Ante- rk/ris. A slip of nervous matter at the upper edge of the valve of Vieussens. FR^E'NUM. A bridle. In Anatomy, a term applied to a fold of membrane which binds down or restrains the movement of a part. Fr^enum Clitor / idis. The union of the nymphae over the clitoris. Fr^enum Glandis. Freeman penis. See Frsenum Prseputii. Fr^enum Labio / kum. Folds of mucous membrane, which bind down the lips to the maxillary bone at the medial line. Also, the Fourchette. Fr^enum Linguae. A triangular fold of mucous membrane from the floor of the mouth which binds down, or rather restrains, the motion of the tongue. Fr^.num Pr^epu'tii. A membranous fold connecting the prepuce with the lower part of the glans penis. Fr^/num of Under Lip. Frce'-num Labii Inferio'ris. A fold of the mucous membrane of the mouth opposite to the symphysis of the chin. FRAGA / R1A. From fragro, I smell sweetly. A genus of plants of the order Rosacea?. Fragaria Sterilis. The barren straw- berry. Fragaria Vesca. The strawberry plant. Fragaria Virginia / na. The wild straw- berry of the United States. Its leaves are astringent. FRAGII/ITAS OSSIUM. Brittleness of the bones. FRAGMENT. Fragmen ; /ragmen- turn, from fragere, to break. In Surgical Pathology, a splinter of bone. FRAMBCE'SIA. From framboise, a raspberry. The yaws ; a disease peculiar to the Antilles and Africa, characterized by cutaneous excrescences, resembling mul- berries, which suppurate and discharge an ichorous fluid. FRAN'GIPAN. An extract of milk, used for the preparation of artificial milk. FRAN'GULA. Black alder. FRANKINCENSE. At present the resin of spruce fir, but formerly, olibanum. FRA / SERA. A genus of plants of the order Gentiance. Frasera Walteri. American calum- ba; false calumba. It has the properties of gentian. FRAXINEL/LA, W T HITE. Dictamnus albus, or bastard dittany. FRAX'INUS. A genus of plants of the order Oleacece. Fraxinus Excei/sior. The ash tree. Fraxinus Ornus. The flowering ash; the manna tree. FBI 288 FEU Therm, falls to— 12° Therm, falls from +50° to —10° FRECKLES. See Ephelides. FREEZING-POINT. For water, thirty- two degrees of Fahrenheit. Freezing Mixture. A preparation ca- pable of suddenly producing cold. The two following are selected from Mr. Walker's table of frigorific mixtures : Mixture with snow. Snow, or pounded ice, five parts by weight, . . Muriate of soda, . . 2 Muriate of ammonia, . 1 Mixture without snow. Muriate of ammonia, . 5 "] Nitrate of potash, . . 5 ]■ Water, 16 j FREMITUS. Shuddering; vibration. In Pathology, a peculiar tremulous sensa- tion communicated to the hand under cer- tain circumstances, when applied to the chest, as in lesions of the left auriculo-ven- tricular orifice of the heart, or ossification of the mitral valve. Fremitus, Vocal. The vibration of the chest during the exercise of the voice. FREN A. The socket of a tooth. FRENCH BERRIES. The fruit of sev- eral of the species Rhamnus. French Polish. Gum lac dissolved in alcohol. French Red. Carmine, mixed with fine sifted starch according to the shade re- quired. French White. Finely pulverized talc. FRIABILITY. Friabilitas ; from frio, to break or crumble. The property of being easily broken into small fragments or coarse powder. FRIABLE. Easily crumbled. FRIAR'S BALSAM. The Tinctura Benzoini Composita. FRICTION. Frictio; from fricare, to rub. The act of rubbing any part of the body with the hand, a piece of flannel or a brush, or with medicinal substances. FRIESLAND GREEN. An ammonio- chloride of copper. FRIGID A'RIUM. Cold bath. FRIGIDITY. Frigiditas; from frig- idum, cold. A sensation of cold. Also, impotence. Frigidity of the stomach, An- orexia exhaustorum, consists of loss of ap- petite, occasioned by excessive venery. FRIGORIFIC. Possessed of the power of producing cold. See Freezing Mixture. Frigorific Mixture. See Freezing Mixture. FRIGUS. Cold ; trembling with cold. Frigus Tenuo. A rigor. FRIT. The mass produced by the ma- terials of glass on calcination. See Porce- lain Teeth. FROG TONGUE. Ranula. FROND. In Botany, a combination of stem and leaf in one organ. Applied by the French, in Surgery, to a bandage used in diseases and wounds of the nose and chin. FRONT. Frons. The forehead. FRONTAL. Frontalis. Belonging or relating to the forehead. Frontal Ar / tery. A branch of the ophthalmic, the supra-orbital, distributed to the muscles of the forehead. Frontal Bone. The os frontis. Frontal Furrow. The groove in the middle of the cerebral surface of the fron- tal bone, which lodges the superior longi- tudinal sinus. Frontal Nerve. A branch of the oph- thalmic, which divides into two branches; one passing up through the supra-orbitar foramen, and the other between the inter- nal orbitar beneath the pulley of the supe- rior oblique muscle. Frontal Protuberance. The protu- berance above the superciliary ridge. Frontal Sinuses. Two cavities in the os frontis, separated by a medium septum, and communicating with the anterior cells of the ethmoid bone. Frontal Spine. A vertical ridge on the middle of the inner side of the os frontis, which gives attachment to the falx cerebri. FRONTALIS. Frontal. FROSTBITE. Numbness and imper- fect or arrested circulation in a part, arising from the action of severe cold. FRUCTIFICATION. Fructifca'tio ; from fructus, fruit, and facio, to make. The collection of phenomena which attend the formation of fruit. Fecundation. FRUCTUS. The fruit of a plant. FRUGIV'OROUS. From fruges, fruits, and voro, I eat. An animal that feeds on fruits, grains, or seeds. FUL 289 FUL FRUIT. Frucius. In Botany, the seed with the pericarp. Fruit Sugar. Glucose. An uncrystal- lizable sugar found in fruits in connection with grape-sugar. FRUMENTA'CEOUS. An epithet ap- plied to plants like wheat. Also, made of wheat, or like grain. FRUMEN'TUM. Wheat; also, the cerealia, from the grains of which bread is made. FRUTEX. A shrub; a plant, the branches of which are perennial, and pro- ceed directly from the surface of the earth, without any supporting trunk. FRUSTUM. That part of a pyramid or cone which remains when any part next the vertex is cut off by a plane parallel to the base. FU'CUS. A sea weed. Fucus Amyla / ceus. Ceylon moss ; ma- rine moss ; Irish moss; Carrageen moss. Fucus Baccif / erus. Gulf-weed, an edible fucus. Fucus Digitals. Sea girdle and hang- ers ; a species which affords soda. Fucus Helminthocor'ton. Corsican wormweed ; a plant in high repute as an an- thelmintic. Fucus Na'tans. Sea lentil, supposed to be useful in dysuria. Fucus Vesiculous. The sea oak ; sea wreck; bladder wreck. When in the open air and reduced to a black powder, it forms the ^Jthiops vegetabilis of the shops. FUGACIOUS. Fagax; from fugere, to fly. Fading quickly. In Botany, ap- plied to organs which speedily fade away. In Pathology, symptoms which appear and disappear almost immediately afterwards. FU'GILE. A name with various sig- nifications. It has been used to denote cerumen, nebulosity of the urine, and ab- scess, in the region of the ear ; and abscess in general. FULCRA. From fulcrum, a prop. In Botany, tendrils, prickles, hooks, spines, or any other processes by which plants support themselves upon other plants. FUL/CRUM. A prop or support; the fixed point about which a lever moves. The fulcrum of the key instrument used for the extraction of teeth is the bulb around which the hook moves, and is placed on the opposite side of the tooth. In Botany, the term, in its plural sense, fulcra, signifies the appen- dages of the axis of a plant, except the leaves. FULGORA. From fulgor, an efful- gence. The generic name of certain He- mopterous insects of the family Cicadarice. The lantern fly is one of the larger species. FULGURATION. The sudden bril- liancy emitted by gold and silver in the cupel of the assayer, immediately the last film of vitreous lead and copper leaves the surface. FULIGINOUS. Fuligino'sus; from fuligo, soot. Having a smoky, or dark brown color. Applied to the lips, tongue, and teeth, when they assume this appear- ance. FULFGO. Soot. Fuligo ligni. Wood soot. Fuligo / kali. From fuligo, soot, and kali, potash. An alkaline medicine pre- pared by boiling soot and potassa in cer- tain proportions in water, and afterwards evaporating and filtering the solution. FULLER'S EARTH. An argillaceous earth. Like other soft aluminous minerals, it has the property of absorbing grease. FULMINAN. A hypothetical radical assumed as the basis of fnlminic acid, which is the acid of the fulminates. Its formula is N 2 C 4 , and its symbol, Fu. FULMINATING GOLD. A detonating compound powder prepared by keeping re- cently prepared peroxide of gold in strong ammonia for about twenty-four hours. Fulminating Mixture. A term applied to certain mixtures wb.ich detonate by heat or friction. Fulminating Mercury. A detonating powder employed in making percussion caps, and obtained by dissolving mercury in nitric acid and pouring the solution into alcohol. Fulminating Platina. A substance obtained by the action of ammonia on a solution of sulphate of platinum. Fulminating Powder. A compound of three parts nitre, three of chlorate of pot- assa, one of sulphur, and two of carbonate of potassa. Fulminating Silver. A black powder prepared by leaving oxide of silver for ten or twelve hours in contact with a strong so- lution of ammonia. 19 FUN 290 FUN FULMINTC ACID. An acid composed j of cvanogen and oxygen. It corresponds j in ultimate composition with cyanic acid. FULNESS. RcpWUo. Plethora. FUMA'RIA. Fumaria officinalis. Fu- mitory: common fumitory. aria Bulbo'sa A plant, the root of which was formerly used as an emmen- agogne and anthelmintic. FUMARIC ACID. An acid, obtained from fumaria and Iceland moss, and, also, from malic acid. FUMIGATION. Fumiga'tio; from n :ke. The application of vapor. as fumes, to purify the atmosphere from some noxious emanation or miasma. Chlo- ride of lime is supposed to be the most powerful disinfecting agent, and, conse- quently, is most frequently employed for this purpose. FUMING UQUC R. BOYLE'S. Proto- sulphuret of ammonia. Fumixg Liquor, Cadet's. Chloride of arsenic. Fumiwg Liquor. Libavius'. The anhy- drous bichloride of tin. FUMITORY. Fumaria. FUMUS. Smoke. Fumus Albus. Mercury. Fumus Citbixus. Sulphur. Fumus Duplex. Sulphur and mercury. Fumus Tep.R-E. Fumitory. FUNCTION. F. ::mfungor, to execute an office. In Physiology, the action of an organ, or system of organs, in the animal or vegetable economy. A power or faculty, by £he exercise of which the vital phenomena are produced. The functions of the living body may be divided into, 1. Those which relate to the preser- vation of the individual, as nutrition, em- bracing digestion, absorption, secretion, cir- culation, assimilation, respiration, exhala- tion, and the evolution of heat. 2. Those which relate to the maintenance of the species, as coition, gestation, parturition, and lactation. 3. Those of relation, embracing sensation, the intellectual and moral facul- ties, k notic .. and voice. FUNCTIONAL DISEASE. A disease in which the function or secretion of an organ is vitiated, with its structure but little I all changed. FUNCTIONS VITAL. Functions im- mediately necessary to life ; viz., those of the brain, heart, lungs. Arc. FUN 'DA. A bandage split at each end to within two inches of the middle, em- ployed in diseases of the nose, and r ; ;r- cially in cases of fracture or dislocation of the lower jaw. FUNDAMENT. Fundo.men'tum. The anus. FUNDUS. The base of an organ which has an external opening, or ends in a neck. FUNGATE. A combination of fuugic acid with a base. FUN'GI. The plural of fungus. In Bot- any, the Mushroom tribe of acotyledonous plants. FUNGIC ACID. An acid obtained trom several species of fungi. FUN GIF :.:: ¥ lis. Resem- bling a fungus or mushroom. Fungiform Papill.-£. A term some- times applied to the papillae near the e gee of the tongue FUN 'GIN. The whitish substance which forms the base of mushrooms. FUNGOID. Fungoi'des: from/ a mushroom, and eiooc, resemblance. That which has the shape of or re - lea fungus. STTY. FungosVtas. Afungc m excrescence. Proud flesh. FUNGUS. In Surgery, a soft, spongy, luxuriant growth, or tumor, developed on the membranes or other textures of the body. Fuxgus Artic'uli. Spina ventosa. Fuxgus. Bleeding. Fungous haemi. Fungus Cerebra'lis. An encephaloid tumor. Fungus Cerebri. Hernia cerebri. Fuxgus Hjkmatodbs. Medullar; coma ; spongoid inflammation : a morbid excrescence of a malignant character, and somewhat similar to the substance of the brain. Three varieties are enumerated by Laennec : 1. The an - The unen cysted, and 3. The infiltrated or difi The first rarely attains a very grea: the second sometimes grows to the si a child's head, and the third consists of un circumscribed m ass Fuxgus Medullaris. Fungous ha?ma- todes. Also, an encephaloid tumor. FUNICULI GRAC'ILES. Posterior median columns of the medulla oblo:. ■ FUK 291 FUT Funiculi Sil'iqu^e. Longitudinal fibres inclosing the base of the corpus olivare. FUNICULUS. Diminutive of funis, a cord. A little cord. Funiculus Spermat'icus. The sper- matic cord. Funiculus Umbilica'lis. The umbili- cal cord. Funiculus Vartco'sus. A varicose en- largement of the spermatic veins ; cirsocele. FUNIS. A cord. Funis Umbilica / lis. The umbilical cord. FURCATE. Furcatus. Forked. FURCULA. The clavicle. FURFUR. Bran. FURFURA. A genus of scaly diseases. FURFURA'CEOUS. Resembling bran ; applied to the bran-like sediment some- times deposited in the urine. FURNACE. Fornax. An apparatus in which a vehement fire and heat may be made, for melting ores or metals, baking clay, or porcelain ware, or teeth, supplied with air by various means, for the purpose of faciliating the combustion of the com- bustible matter employed for heating it. Furnace, Blast. A furnace the heat of which is produced by a current of air forced through the burning fuel by artificial means, as by a bellows. Furnace, Ceylonese Goldsmith's. A small low earthen pot, filled with chaff or saw-dust, on which a charcoal fire is placed. This is excited with a small bamboo blow- pipe inserted in a nozzle, placed at the bottom of the fire. It is sometimes used by dentists for refining and alloying gold. Furnace, Cupelling. A dome furnace containing a muffle for cupellation. Furnace, Evaporatory. A furnace used for the purpose of reducing substances into vapor by means of heat, in order to separate the fixed from the volatile princi- ples. Furnace for Baking Porcelain Teeth. A muffle furnace, which is made of fire clay, cased or hooped with iron bands, to prevent it from cracking when heated, with a muffle, or arched clay vessel with a flat bottom in the side, for the reception of a slide or tile, on which the teeth are placed. Some fur- naces used for this purpose are in two pieces, the top one being shaped like a dome ; others constructed on a more extensive scale are cased with brick. See Porcelain Teeth. Furnace, Forge. A furnace in which the current of air is supplied by a bellows. It is sometimes used in the laboratory of the dentist. Furnace, Reverberatory. A furnace in which the flame is made to diffuse itself over an arched surface, as in distillation. Furnace, Wind. Air furnace. A fur- nace depending for its supply upon the natural current of air. FU'ROR UTERFNUS. Nymphomania. FURUN'CULUS. From furere, to rage. A species of phlegmon, or boil, seated in the dermoid texture, which, after some days, suppurates and discharges a bloody pus. It is vulgarly called a boil. Furunculus Gangr^eno'sus. An an- thrax. FUSEL OIL. Oil of grain ; corn-spirit oil ; potato-spirit oil. FUSIBH/ITY. Capability of being fused. FUSIBLE. Possessed of fusibility. Fusible Alloy, Rose's. An alloy com- posed of two parts bismuth, one of lead, and one of tin. Fusible Metal. See D'Arcet's Metal. FUSIFORM. Spindle-shaped. FUSION. Fu'sio ; from fundere, to melt. The transformation of solids into liquids, by exposure to the action of heat. FU'SUS. Fusi. In the plural the pa- pillse through which in the Arachnides the delicate threads pass. FUSTIC. A yellow dye-wood, of which there are two kinds ; one is the wood of the Morus tinctoria, called old fustic, and the other is the wood Rhus cotinus, which is called young fustic. FUTUTIO. Coition. GAL 292 GAL G. G. With the ancient Greeks, uncia, or an ounce. G ABIR'EA. A fatty kind of myrrh. GAD'OLINITE. A mineral, so called from the discoverer, Gadolin, a Swedish chemist. GAD'UIN. Gadus morrhua, the cod- fish. A peculiar substance found in cod- liver oil. GADUS. A genus of fishes, containing many species highly valued as articles of diet, among which are the codfish, haddock, &c. Gadus Morrhua. The codfish, the liver oil of which is a highly valuable medicinal agent. GALAC'TAGOGUE. From yala, milk, and aycj, to lead or bring away. Substan- ces which promote or suppress the flow of milk. To the former class belong fennel seeds, extract of vanilla, soups, malt liquors, tea, &c. To the latter belong diaphoretics, castor oil, tartar emetic, belladonna, cam- phor, peppermint, &c. GALAC'TIA. From yala, milk. A morbid flow or deficiency of milk ; mislacta- tion. In Good's Nosology, a genus of dis- ease. GALACTIC ACID. Acid of milk. Lac- tic acid. GALAC'TIN. A substance obtained from the juice of the Galactodendron utile, or cow tree of South America, and used in place of cream ; also, the coagulating prin- ciple of milk. GALACTIRRHCE'A. From yala, milk, and peu, to flow. An excessive secretion of milk. GALAC'TOCELE. From yala, milk, and kvItj, a tumor. A tumor or swelling, containing a milky fluid. GALACTOM'ETER. From ya~Xa, and fierpov, measure. An instrument to deter- mine the quality of milk by the proportion of butter it contains. GALACTFTES. A calcareous mineral supposed by the ancients to possess the property of promoting the secretion of milk. GALACTOPH'ORUS. From ya/.a, milk, and rj, a suture. The union, by suture, of wounds of the abdomen. GASTRORRHCF/A. From yaarrjp, the stomach, and peu, I flow. Excessive secre- tion of mucus from the raucous membrane of the stomach. GASTROSCOP'IA. From yaarrjp, and anoTreo, to survey. Examination of the ab- domen as a means of diagnosis. GASTRCKSES. A generic name for diseases of the stomach. GASTROSPLE'NIC. From yaarrjp, and anlr/v, the spleen. Belonging to, or con- nected with, the stomach and spleen. GASTRONOMY. From yaar-rjp, the stomach, and repiveiv, to cut. The operation of opening the stomach or abdomen. GASTRYPAL'GIA. Taarrjp, and vtto, under, in a slight degree, and a\yog, pain. Slight or gentle pains in the stomach. GATH'ERING. Same as abscess, and suppuration. GAUCHIR. A word applied by French dentists to artificial pieces, or dental sub- stitutes which have been awkwardly con- structed, or which have shrunk or warped, and lost their proper adaptation. GAULTHE'RIA. A genus of the order Ericaceae. Gaultheria Procum'bexs. Partridge- berry ; mountain-tea ; chicken-berry ; win- ter-green. It is stimulant, aromatic, and slightly astringent. See Oleum Gaultheria. GAUGE-PLATE. In Mechanical Den- tistry, an instrument for measuring the thickness of plate employed for bases for artificial teeth, clasps, and backings. See manner of making gold into plate, in Harris's Dental Surgery. GAUGE FOR RUBBER. An apparatus used in Mechanical Dentistry for ascertain- ing the quantity of rubber required for any given case. GAYACYNE. A resinous substance obtained from the bark guaiacum. GAZ. Gas. GE'IC ACID. Geine. Acro-acid of vege- table mould. GELATIG'ENOUS. From gelatin, and yevvdu. I engender. That which forms gelatinous structure. According to Carpen- ter, yielding gelatine. GEI/ATIN. Gelatine. Gelatina. Jelly. A peculiar animal substance, obtained by GEM 299 GEN boiling the skins, cellular tissue, bones, &c., of animals, in water. Glue is an impure form of gelatine. According to Liebig, gel- atine is not capable of sustaining life, but serves to repair the waste of the cellular and other tissues. Gelatin of Wharton. JeVly of the Cord. A soft, dense, fluid, gelatinous sub- stance, which envelops the umbilical cord, and is thought to be conducive to the nutri tion of the foetus. GELATINE CAPSULES. Capsules made from a concentrated solution of gela- tine, and filled with medicines, used to avoid the nauseous taste. Gelatine. Sugar of. See Glycocoll. GELATINOUS. Of the nature of gela- tine. GELATINOUS TISSUES. Tissues which have for their basis gelatine, as mu- cous membrane, the epidermis, &c. GELxl'TlO. From gelo, to freeze. Freezing, congelation. In Pathology, rigid- ity of the body, as in catalepsy. GELLY, or JELLY. A soft, tremulous, transparent substance, obtained from ani- mal and vegetable matters. GELSEMINUM SEMPERVIRENS. Gelseminum nVtidum. Yellow Jessamine. This plant is narcotic, antispasmodic, and sedative. It is largely used in the South as a febrifuge. GELU. Gelly. GEMELLUS. Double ; twin. One of two children produced at a birth. In Anat- omy, muscles disposed in pairs. See Gem- ini Musculi. GEMINI. Twins. In Anatomy, applied to muscles disposed in pairs. Gemini Musculi. Gemelli. A muscle of the thigh, consisting of two portions, united by a tendinous and fleshy membrane. GEM / MA. A gem. In Surgery, a gran- ulation. In Botany, a bud on the stem of a plant. Gemma Oculi. The crystalline lens. GEMMIP'AROUS. From gemma, a bud, and pario, to produce. Plants which produce buds, and zoophytes, which propa- gate by a like process. GEMMULA'TION. Gem'mula, a lit- tle bud. A kind of reproduction of simple growth and development without the agency of sexes. GEMMULE. The terminal bud of the plumula of germinating seeds. GE'NA. The cheek. GENCIVES. The gums. See Gingivae. GENERAL ANATOMY. The anatomy of the textures, or, more properly, the tissues of which the body is composed, as dis- tinguished from descriptive anatomy, which consists of a description of the various or- gans formed by these tissues. GENERATION. Genera' tio ; from yetvop,ai, to beget. The aggregate vital functions concerned in the production of or- ganized beings, comprehending conception,, pregnancy, and parturition. Generation, Equivocal. Spontaneous- generation ; a theory which ascribes an ex- isting plastic energy in the universe, by means of which, under certain circumstan- ces, new living beings are spontaneously produced, as minute animals are apparently formed from putrefaction. Generation, Fissip'arous. The pro- duction of an organism from a part separa- ted from the parent, as in certain infusoria and polypi, or as from shoots of certain plants. Generation, Organs of. In women they are divided into external and internal.. The external are, the mons veneris, the la- Ma, the clitoris, the Jiymphai, and the peri- nceum ; the internal consists of the vagina r the uterus, the Fallopian tubes, and the ovaria. In men they consist of the penis, testicles, vesiculce seminales, vasa deferentia, and prostate gland. GENERIC. Gener'icus. Pertaining to a genus or kind. GENE / SIAL. Belonging to generation. GENESIS. Tevco, to be born. Birth, origin, or generation. GENET / ICA. From yeveaig, origin. Disease of the sexual functions. GENETICS. Substances which act on the sexual organs. Of two kinds, Aphrodis- iacs, which increase sexual desire, and Ana- phrodisiacs, which allay such a desire. GENICULATE. GenicuWtus ; from genu, the knee. Kneed ; knee-jointed. In Botany, having joints like the knee ; benfe so as to form an obtuse angle. GENFAL. Relating to the chin. GENFO. A prefix, from yevetov, the- chin. GEX 300 GEE Gexio-Glossus. Genio-hyoglossus. From yevEtov, the chin, and y'/.ucca, the tongue. A muscle extending from the genian apophysis to the base of the os hy- oides, and to the root, middle and extremity of the tongue. Genio-Hyoide'us. From yeveiov, the chin, and voeidqc, the os hyoides. A long, thin, and fleshy muscle, extending from the genian apophysis to the base of the os hy- oides. Genio-Pharynge'us. From yeveiov, the chiu, and papvy^, the pharynx. Constrictor pharyngis superior. GENIS'TA. A genus of plants of the order Leguminosoz. Genista Spino'sa Indica. An Indian tree. A decoction of the root is diuretic. Genista Tixcto'ria. The dyer's broom. GEN'ITAL. Genitalis. Relating to generation. Genital Organs. The organs of gener- ation. GENITO-CRURAL. A name applied by Bichat to a branch of the second lumbar nerve, distributed to the genital organs and thigh. GENITU'RA. The male seed. Also the geuital organs of the male or female. GEN" ON IT'S I. From yevoc, sex, and voaog, disease. Sexual diseases. GENOS Sex. GENSANG. See Ginseng. GENTIAN. The root of the Gentiana Lutea. GENTIA'NA. A genus of plants of the order Gentianacece. Gentian. Gentiana Alba. White gentian. Gentiana Cachenlaguen. Chironia chilensis. A species of gentian growing in Chili. Gentiana Catesb^i. Blue gentian. Gentiana Centaurium. Common Eu- ropean centaury. Gentiana Chiratita. This species is a native of India, and is employed as a tonic, febrifuge, and alterative. Gentiana Lutea. Gentiana rubra. The officinal gentian. The root is tonic, stomachic, and febrifuge. Gentiana Major. Gentiana lutea. GENTIANACE.E. The gentian tribe of dicotyledonous plants. GENTIANINE. A neutral substance obtained from gentian. GENTI'LH MORBI. Hereditary dis- eases. GENU. The knee joint. The articula- tion of leg with thigh. GEN'UA YAL/GA. Valgus, crooked ; knock knees. GENUGRA. Gout in the knee. GENUS. An assemblage of objects pos- sessing common characters. GENYANTRAL/GIA. From geny, avrpov, the antrum, and a/.yoc, pain. Pain in the maxillary sinus. GENYANTRFTIS. Inflammation of the maxillary sinus. GENYANTRUM. Maxillary sinus. GEOFFR.E'A. A genus of plants of the order Leguminosaz . Geoffr-£a Inermis. Cabbage tree ; the cabbage bark tree. GEOG'ONT. From yr n the earth, and yovrj, generation. The theory or doctrine of the formation of the earth. GEOL/OGY. From y*, the earth, and '/ayoc, a discourse. The science of the structure and mineral constitution of the earth : and the mode in which the different materials that compose it have been formed and deposited. GEOPHA'GISM. From ; 7, the earth, and pa} o, I eat. The practice of dirt-eating. GEORGIA BARK. The bark of the Pinekneya pubens, an American plant. It has been used as a substitute for cinchona. GERANIUM. A genus of plants of the order Geraniaceoz. Geranium Maculatum. Common crane's- bill : crowfoot. Geranium Robertia'num. Stinking crane's-bill. GERM. The germen : the rudiment of a being. Blastema. In Botany, the ovary of a plant, or rudiment of fruit in embryo, found at the base of the pistil. Germ, Dental. A tooth papilla, or pulp. GERMANDER. The popular name of several plants of the genus Veronica, and of the genus Teucrium. See Teucrium. GERMAN SILVER. An alloy consist- ing of one hundred parts of copper, sixty parts of zinc, and forty of nickel. GERMAN TINDER. Polyporus to- GIL 301 GLA mentarius and igniarius, cut into slices, beat, and soaked in a solution of nitre. GERMEN. A germ. GERMINAL CELL. A cytoblast. GERMINAL MEMBRANE. See Blas- toderm. GERMINATION. Germina'iio. In Botany, the act of sprouting. The first de- velopment of a seed. GEROCO'MIA. From yepag, old age, and KOfzeo, to be concerned about. That part of hygiene which relates to the health of the aged. GEROCOMFUM. An hospital for old persons. GERONTO'PIA. Weakness of sight of the aged. GERONTOX'ON. A bow-shaped opa- city around the cornea, occurring in aged persons. GERSA. Plumbi subcarbonas. White lead. GESTATION. Gesta'tio; from gestare, to carry. The period, during which the pregnant female carries the foetus in her womb. Also, passive exercise, such as swinging, riding in a carriage, &c. GESTICULATION. The act of making many movements or gestures, a symptom exhibited in many diseases. GEUM. A genus of plants of the order Bosacece. Geum Riva / le. Water avens ; the root of which is astringent, and has been used in passive hemorrhages, leucorrhcea, diar- rhoea, and as a tonic in dyspepsia and phthisis pulmonalis. Geum Urba'num. The herb bennet or common avens. Geum Virginia'num. White avens. Evan root. GEUMA. Taste. GEUSION'OSI. From yevatg, taste, and voaoc, disease. Diseases of the function or organ of taste. GEUSIS. Taste. GIBBOSITY. Gibbosi'tas; from gib- bus, a hunch or swelling on the back. A curvature and protuberance of the spine. GIBBUS. A hunch or swelling on the back. GIDDINESS. Vertigo. GILEAD, BALM OF. The resinous juice of the Amyrus Gileadensis. GILLE'NIA. A genus of plants of the order Bosacece. Gillenia Trifolia'ta. Indian physic ; Western drop-wort. It is a mild emetic, and is used as a substitute for ipecacuanha. Dose, gr. x to xxx of the powder. GILLIFLOWER. Dianthus caryophyl- lus. Clove pink. GILLS. The respiratory organs of fishes, frogs in their tadpole state, lobsters, &c. GIMBERNAT'S LIGAMENT. The lower border of the aponeurosis, stretched from the anterior and superior spinous pro- cess of the ilium and crest of the os pubis. GIN. Geneva. A spirit distilled from corn and juniper berries. GINGER. The rhizoma of zingiber offi- cinale. It has a spicy, pungent, hot, and biting taste, and an aromatic and penetra- ting odor. It is a grateful stimulant and carminative. Ginger Beer. An effervescing bever- age, obtained by fermenting ginger, cream of tartar and sugar, with yeast. Ginger, Wild. A plant of the genus Asarum ; the asarum of the U. S. Ph. GINGIBRA'CHIUM. From gingiva?, the gums, and brachium, the arm. Scurvy is so called because the gums and arms are the parts affected by it. GINGFV^E. The gums. GINGIVA'LIS. Relating to the gums. GINGIVFTIS. GingVva. The gum. Inflammation of the gum. GING'LYMOID. Ginglymoideus ; from yiyy7„viioq, a ginglymus, and eidoc, resem- blance. A hinge-joint ; a species of diar- throdial articulation. GINGLYMUS. A hinge-joint. GINSENG. A plant of the genus Pa- nax; the root of which is in great demand among the Chinese, who consider it a pana- cea in almost all diseases. GIR / ASOL. From gyro, I turn, and sol, the sun. A milk-white or bluish opal, which reflects a reddish hue when turned to the sun. GIRMIR. Tartar. GIZZARD. The strong muscular stom- ach of birds. GLABER. Glabrous ; which see. GLABEL / LA. The triangular space betwixt the eyebrows. GLA 302 GLA GLABROUS. TXao, I carve, and odovg, a tooth. An extinct gigantic quadruped of the family Armadilloes, with the teeth longitudinally fluted, hence its generic name. GLYS'TER. An enema. GNAPHA'LIUM. A genus of plants of the order Composito3. Gnaphalium Polyceph'alum. Sweet- scented life-everlasting. GNATHFDIA. From yvadog, a jaw. A term in Ornithology, applied to the rami of the lower jaw which are joined to the cranium behind, and meet in front at a greater or less angle. GNATHOTHE'CA. From yvatiog, and &r)Kr], a sheath. In Ornithology, the horny integument of the beak. GNATHI'TIS. From yvadog, the cheek, the jaw. Inflammation of th# cheek or upper jaw. GNATHOPLE'GIA. From yva&og, and Tzlriyr], a stroke. Paralysis of the cheek. GNATHORRHAG'IA. From yvattog, and pr]yvv[iL, to burst forth. Hemorrhage from the internal surface of the cheek. GNATHOSPAS'MUS. From yvadog, and ciraofiog, a spasm. A spasmodic con- traction of the muscles of the lower jaw. GNATHOPLAS / TY. Operation for re- pairing any deficiency of the cheek by ap- propriating a sufficient portion of the soft parts contiguous. GOAD'BY'S SOLUTION. A prepara- tion for preserving animal substances, made of bay salt, corrosive sublimate, or arseni- ous acid and water. GOBEL'S PYROPH'ORUS. A mixture of charcoal and lead, the latter being in such an extreme state of division as to take fire on exposure to the air. GODFREY'S CORDIAL. A celebrated anodyne and carminative cordial. GOITRE. Bronchocele ; which see. GOLD. Aurum. The most valuable of metals, found either in its native state, or 20 GOL 306 GOL combined with silver, copper, or iron. It is of a yellow color, very brilliant, and pos- sessed of great density, ductility, and mallea- bility. Iu Therapeutics various preparations of it are used, and in Dental Surgery it is very extensively employed, both for filling teeth and in the construction of dental substitutes and artificial palates and obturators. With the exception of platina and aluminum, it is the only metal that can be placed in the mouth with impunity. When used for filling teeth, it should be pure, but for other dental purposes, it should contain a small quantity of alloy. Gold, Alloying of. Gold in an un- alloyed or pure state, is too soft to serve as a basis or support for artificial teeth, and, consequently, it has been found necessary to combine with it some other metal or metals to increase its hardness and elasticity. Sil- ver and copper are the alloys most frequently employed. The following standards of fine- ness may be regarded as the best that can be adopted for gold to be used in connection with artificial teeth : Plate for the upper jaw, twenty carats ; for the lower, twenty-one, and for clasps and wire for spiral springs, eighteen. In re- ducing perfectly pure, or twenty -four carat gold, to these standards, the following are the proper proportions of alloy to be em- ployed : 1. For twenty carat gold, take 20 dwts. pure gold, 3 dwts. fine copper, and 1 dwt. silver. 2. For twenty-one carat gold, take 21 dwts. pure gold, 2 dwts. fine copper, and 1 dwt. silver. 3. For eighteen carat gold, take 18 dwts. pure gold, 5 dwts. best copper, and 1 dwt. silver. The gold should be first melted in a clean crucible, in the manner to be hereafter de- scribed, and as soon as it has become thor- oughly fused, the silver and then the cop- per should be thrown in, with two or three small lumps of sub-borate of soda. After keeping the whole in a fused state for some five or ten minutes, it may be poured into an ingot mould of the proper size, previously warmed and thoroughly oiled. If the gold cracks during the process of hammering or rolling, it should be again melted, and a few small pieces of sub-borate of soda, with a little muriate of ammonia, thrown in. In five or ten minutes it may be again cast into an ingot. When scraps and filings are to be con- verted into plate, they should first be refined, and afterwards properly alloyed. This may also be necessary with all gold the quality or fineness of which is not known, but with national coins having a known fixed stan- dard, this will not be necessary, unless they are below twenty-one or twenty carats. Gold, Crystallized and Sponge. Prep- arations of gold bearing these titles have been introduced to the notice of the dental profession, and have been pretty extensively used. They weld well, and are especially adapted to fillings in crown cavities in the lower jaw. The crystallized gold is usually obtained in flat masses of a porous texture, of a red- dish-brown or yellow tint, with here and there a golden lustre. Some of the speci- mens have a brilliant golden hue. All of these, when examined with a lens, will be found to be made up of a mass of confused crystals of the precious metal. See Crystal Gold. Sponge gold is commonly found in small reddish-brown masses, destitute of the lus- tre which we occasionally see in the crys- tallized variety. It is prepared very much in the same manner as the other. Some have made it from an alloy of gold and silver by dissolving out the latter metal with nitric acid and heating the sponge to redness. This method is objectionable, because some silver is always retained. It is better pro- cured by igniting the terchloride. Gold, Annealing of. The softening of gold by means of heat. When swaging a gold plate it is necessary to frequently an- neal or soften the gold, as the hammering renders it hard and unyielding. In the case of a gold plate, this is readily done by means of the blow-pipe, the plate being held on a piece of charcoal, in contact with the alco- hol flame, until it is heated to a cherry-red color, when it can be plunged in water to cool it. The annealing of gold foil for fill- ing teeth can be performed by placing a sheet upon a wire grating, and holding it over the flame of a spirit-lamp. Some use a thin plate of platina upon which the gold GOL 307 GOL is placed, and the platina plate heated ; others place the gold sheet directly upon a charcoal fire. Another process is to boil the sheet of foil in dilute sulphuric or muri- atic acid, and after carefully washing off the acid, to dry it by means of heat. See An- nealing. Gold, Chloride of. TercMoride. This form of gold is obtained by dissolving pure gold in three times its weight of muriatic acid, with the aid of moderate heat. The solution is evaporated by a gentle heat nearly to dryness, being at the same time well stirred with a glass rod. It is in the form of a crystalline mass of a deep red color. Its solution has a fine yellow tint. Being deliquescent it must be kept in ground stoppered bottles. It is a virulent poison, even more active than corrosive sublimate. It has been used as a caustic. It has been used in dentistry for the treatment of sen- sitive dentine. Gold Foil, Dentist's. Aurum folia- turn. Gold leaf. Gold foil, as used by dentists for filling teeth, is gold hammered into a thin leaf, but finer in quality and of much greater thickness than the article or- dinarily known as gold leaf. The art of preparing gold foil is an ex- ceedingly nice and difficult one, and has attained greater perfection in the United States than in any other country, as one evidence of which we may mention, that many of the most eminent European prac- titioners procure their supplies from Mr. Charles Abbey of Philadelphia (Charles Abbey & Sons, in 1867), the oldest gold foil manufacturer in America. There are however many other goldbeaters in the Uni- ted States who manufacture good foil. Gold as at present supplied to the dentist is divided into soft or plain gold foil, and adhesive gold foil, the appreciable difference between them being that the latter possesses the quality of adhering or welding together with much less pressure, when freshly pre- pared, than the former. The thickness of the individual leaves or sheets is, or should be, indicated by the ex- pression of the weight in grains of each sheet. Thus a sheet of No. 4 should weigh four grains, No. 5 five grains, and so on. Consequently a troy ounce of No. 4 con- tains 120 sheets, while the same weight of No. 6 will contain only 80 sheets. The num- bers most in use are 4, 5, 6, and 8, though occasionally thicker numbers are called for. When properly prepared, gold foil is made from absolutely pure gold, and particular at- tention given to the annealing process by the manufacturer ; this latter is of as much vital importance as the former. There are various methods of freeing gold from foreign matter or alloy, for a general account of which see Refining of Gold, but the most effectual and certain method by which gold can be made absolutely pure is by dissolv- ing in aqua regia (royal water), a mixture of nitric and muriatic acids in proportion of one part of the former to four of the latter. The bullion to be refined (composed, say of gold, silver, and copper), previously pre- pared by graining, or passing through the rolls, is put into a glass matrass, and a suit- able quantity of the aqua regia poured on it, and then submitted to heat in a water or sand-bath. The gold and the copper are dissolved and remain in solution, while the silver is precipitated to the bottom of the matrass as a chloride in a grayish- white powder. The solution must be carefully decanted from the chloride into a solution of proto- sulphate of iron, at the bottom of which, after a short interval, the gold will be found precipitated in the form of a reddish-brown powder. This precipitate must be well di- gested in muriatic acid, then in boiling water, and after drying may be melted with a little borax. The whole operation is a very deli- cate one, requiring considerable experience and the exercise of great patience, care, and attention, to insure success. The gold is cast into ingots about one inch wide, and portions of it (varying in weight according to the number intended to be made) are cut off, and pressed between fine steel rolls until the proper thickness is reached, which for No. 4 is when a piece of the ribbon one inch square will weigh about five grains. Two hundred of these inch square pieces of gold are filled into the centre of a four inch square packet, composed of pieces of vel- lum, or of a peculiar paper, a square of the gold and a piece of the vellum, or paper, alternating all the way through. The packet,, which is technically called a "cutch," is then tightly incased on all sides by strong parch- GOL 308 GOL merit casings, and is ready for beating. The hammers nsed weigh from 12 to 16 pounds, and are wielded with one hand, the other being employed in regularly turning the cutch around and over, so as to bring every part of it equally under the hammer. The beating is commenced upon the cen- tre of the cutch where the squares of gold are piled, but as the squares enlarge by the force of the blows, the direction of the hammering is moved outward apace, the skill of the workman being proved by his ability to keep the enlarging gold in the cutch as nearly square as when started. The beating is continued until the edges of the gold are driven out beyond the edges of the cutch, when it is carefully scraped off and weighed from time to time, until the proper quantity has been taken off. The sheets of foil are then laid out from the cutch, the rough edges trimmed smooth and even, and they are ready for the process of softening or annealing. This is an important process, and each manufacturer has his own method of doing it, the details of which are seldom made known. The general principle is, that by exposure to heat, the soft, kidlike quality of absolutely pure gold may be restored to sheets of foil that have been rendered hard, harsh and unyielding by the hammering they Jiave been subjected to. After annealing the foil is placed in books preparatory to ex- posure for sale. See Gold, Annealing of. The vellum books made use of for tools, the relics of centuries gone by, are many of them beautifully illuminated, and the differ- ent colors remain as bright as when first put on. Some of them must have required .the greater part of an ordinary lifetime for their completion, and after having per- formed their part in the world as literary productions, are made to perform a very different part, one never contemplated by their authors, namely, that of forming an indispensable tool for the manufacture of dentists gold foil. Gold Foil, Adhesive. That condition of gold foil in which the leaves unite read- ily and firmly together; a property of cohe- sion. To Dr. Robert Arthur, of Baltimore, is due the credit of having first directed the attention of the dental profession to this form of gold foil, and to the manner of working it. His method is to tear off frag- ments from the sheet, and pass them into the cavity with a fine serrate-pointed instru- ment, condensing well every fragment be- fore another is added, and thus build up the filling from the bottom to the orifice of the cavity. It is necessary that the first gold introduced into the cavity, should be firmly fixed, in order that it should act as a base for the portion to be built upon it. See Gold Foil, Dentist's. Gold, Peroxide of. Dissolve gold foil or pure gold in aqua regia, composed of one part muriatic acid, and two parts of nitric acid, precipitate the solution with am- monia, being careful not to add too much ammonia, then pour off the acid and wash the precipitate with warm water several times, or until there is no acid left, then dry it over a gentle fire. A decidedly better method is to precipi- tate with oxide of zinc or magnesia, and then to wash the precipitate with water, and to digest it with nitric acid. This oxide is yellow when hydrated, and black when an- hydrous. It is easily reduced by heat, and even by light. Gold Plate, Manner of Making it. This being an article much used in the con- struction of dental substitutes, the author will here describe the manner of making it. The gold, after being melted in a clean crucible, rubbed on the inside with borax (sub-borate of soda), is poured into an ingot- mould of the proper length, width, and thick- ness, and after it has cooled, is reduced by hammering on an anvil, to the thickness of about an eighth of an inch. It is now an- nealed by placing it in a charcoal fire, or furnace, and heated until every part be- comes red. It may be necessary, during the operation of hammering, to subject it several times to this process, to prevent the gold from cracking, and if, notwithstanding this precaution, it still cracks, it should be remelted, and a little muriate of ammonia thrown on it in the crucible while in a fused state. It may then be recast into an ingot and the hammering proceeded with as before. When it is reduced to the thickness above mentioned, it should be annealed and then placed between the rollers of a rolling mill, so adjusted as to be the same distance apart at both ends, and not so near to each other as to require a very great effort to force the GOL 309 GOL gold between them. The rollers should be brought a little nearer to each other every time the plate is passed between them, un- til the gold is made sufficiently thin. Gold, Refining of. There are several pro- cesses for refining gold, one of which is known by the name of "parting." By this pro- cess, a quantity of silver, equal to three times the weight of the gold to be refined, must be melted with it, and well mixed by being stirred up in the crucible, and then poured into an ingot, rolled very thin and cut into small pieces ; or, instead of this, the melted mixture may be poured into a vessel con- taining water which is rapidly revolving ; this latter procedure is called granulating, and will serve equally as well as the other. The whole mass is now put into a glass matrass, and a quantity of nitric acid poured on it. The matrass is now placed in a sand- bath, moderately heated at first. The ac- tion of the acid commences immediately, and when it becomes completely saturated with the silver, it must be carefully poured off into a vessel containing water, and a fresh supply of acid poured into the mat- rass, and the action continued until the whole of the silver is decomposed or dis- solved, which may be known by the color- less appearance of the fumes. The pure gold remaining in the matrass has a brown appearance, is easily broken with the fin- gers, but its metallic qualities have not been affected, and only requires to be melted to be ready for use. Another process employed in some of the mints, is termed, " cementation." This con- sists in first rolling the gold out into exceed- ingly thin plates, then placing it with a mixture of four parts of brickdust, one of sulphate of iron, calcined to redness, and one of muriate of soda, in a crucible. A bed of this mixture, or cementing powder, is first placed in the bottom of the crucible ; the gold is then put in and covered with it. The crucible is covered with another cruci- ble, the joints well luted with clay, and ex- posed to a heat gradually raised to a red heat, at which elevation of temperature it is kept from twenty to twenty-four hours. The crucible is now removed from the fire, the top broken off, and after the latter has cooled, the gold is separated from the ce- ment and washed with hot water, or what is still better, boiled in water.* For separating copper, tin, lead, or zinc, from gold, the following simple method may be adopted : Put the gold in a clean cruci- ble covered with another crucible, having a small opening or hole through the top ; lute the two together with clay, place them in a bed of charcoal in the furnace, ignite the coal gradually, afterwards increase the com- bustion by means of a current of air from a pair of bellows, such as are usually used in connection with small furnaces ; after the gold has melted, throw in several small lumps of nitrate of potassa and borax, and keep in a fused state for thirty or forty min- utes, then separate the two crucibles and pour the metal into an ingot-mould of the proper size, previously warmed and well oiled. Most of the base metals will be dis- sipated during the process of fusion in the form of vapor, the lead escaping into the pores of the crucible. The chloride of mer- cury (corrosive sublimate) is sometimes used instead of the nitrate of potassa, for the pur- pose of dissipating the base metals, and often with more certain and better results. If the gold cracks on being hammered or rolled, it should be melted again, and more nitrate of potassa and borax thrown into it, and the inside of the crucible well rubbed with the latter, before the metal is put in. It is sometimes necessary to repeat this process several times, and if the gold continues brittle, a little muriate of ammonia should be thrown into the crucible when the gold is in a fused state, and after the vapor ceases to escape, the metal may be poured into an ingot-mould, warmed and oiled as before directed. This last method of treat- ment will make the gold tough, and prevent it from cracking under the hammer, or while being rolled, if it is properly annealed. To separate platina from gold, it is ne- cessary to dissolve the alloy in a mixture of ammonia and nitric acid, which will cause the former metal to be precipitated. The acid should then be poured into another vessel, and the gold precipitated by pouring a solution of sulphate of iron into it. Gold Solder. Gold alloyed with one or more metals. But the metals used for * Chemistry of the Arts, vol. ii, p. 551. GOL 310 GOM this purpose should be pure. The gold should be placed in a clean crucible with a little borax, and as soon as it has become completely fused, the silver, and afterwards the copper, those being the proper alloys for gold solder, may be added. When the whole is melted, the alloy may be immedi- ately poured into an ingot-mould, previously warmed and oiled. The ingot should now be hammered on an anvil, and afterwards passed through a rolling-mill until it is reduced to a very thin plate, when it is ready for use. The solder employed in mechanical den- tistry should be sufficiently fine to prevent it beiug easily acted on by the secretions of the mouth. The following exhibits the rel- ative proportions of the metals most fre- quently employed for three different quali- ties of gold solder : Fine Flowing Gold Solder. No. 1. — 2 dwts. 22 carat gold, 16 grs. fine silver, 12 grs. roset copper. No. 2. — 1 dwt. 15 grs. 22 carat gold, 16 grs. fine silver, 12 grs. roset copper. The following makes a finer solder than either of the above, and, although it re- quires a little stronger blast to fuse it, it flows very freely : No. 3. — 6 dwts. pure gold, 2 dwts. roset copper, 1 dwt. fine silver. In making gold solder, if the proper rel- ative proportions of the different metals are varied even half a grain, it will affect the flowing of it, a quality which it is very de- sirable for it to possess. Gold, Crystal or Sponge. See Crystal Gold. Gold, Cohesive Shred. A preparation of gold for filling teeth, invented by E. Lamm. This form of gold is similar, in some respects, to crystal or sponge gold. The following directions are given for using shred gold : " Separate the gold with a small excavator, or, more properly, a fork and hook made for the purpose, into pieces suitable to the size of the cavity to be filled ; half or two-thirds the size of the cavity. Should there be any tendency to crumble. pass it through a spirit flame and bring it to a moderate red heat, or anneal in a me- tallic or porcelain vessel, over a spirit-lamp, as may be preferred. The observance of this rule will insure perfect cohesion and freedom from crumbling. Ordinarily the heating process is not requisite. Either hand-pressure or mallet pluggers may be successfully used, provided the points are not too small or deeply serrated. Instru- ments best suited to this preparation should be tolerably blunt, with shallow serrations, resembling somewhat the ordinary hand- pressure condensers. Care should be ob- served in handling the gold not to compress the fibre." Gold Leaf Electrometer. An instru- ment for detecting the presence of electricity by the divergence of two slips of gold leaf. Gold Thread. The root of Coptis tri- folia, a Ranunculaceous plant. It is a bit- ter tonic. Gold Wire. See Spiral Springs. GOLDBEATERS' SKIN. The intestina recta of the ox, which have been beaten quite smooth for the manufacture of gold leaf. Used as a defensive dressing for slight cuts, &c. GOLDEN ROD. A plant of the genus Solidago, possessing aromatic, stimulant, and carminative properties. Goldex Seal. Yellow root; turmeric root. Golden Sulphuret. A sulphuret of antimony prepared by precipitating anti- monie acid by sulphuretted hydrogen. Golden Thistle. A plant of the genus Scolymus. Golden Maidenhair. A plant of the genus Polytrichum. GOMPHFASIS. Gomph ias'mus ; from yoftyog, a nail. Pain in the molar teeth ; the pain of teeth in teething. Loosening of the teeth. GOMPHIAS'MUS. Gomphiasis. GOMPHIOI. Dentes molares ; grinding teeth. GOMPHO'SIS. TofiQucic, from youpoQ. a nail. Gomplio'ma. An immovable ar- ticulation in bones, in which one bone is re- ceived into the cavity of another, like a nail in a board. The articulation of the teeth with the alveoli furnishes the only example of this species of articulation. GON 311 GOU GONAG / RA. Gonya'gra; from yow, the knee, and aypa, a seizure. Gout in the knee. GONAI/GIA. Pain in the knee. GONARTHRPTIS. From yow, the knee, apftpov, joint, and itis, inflammation. Inflammation of the knee. GONARTHROC'ACE. From yow, knee, apdpov, joint, and naur), evil. A can- cerous or ulcerated condition of the knee- joint. GO'NE. The semen. The uterus. Off- spring. GONECYSTFTIS. Inflammation of the vesiculae seminales. GONFLEMENT. Swelling. GONGRO'NA. Bronchocele. GONG METAL. An alloy of eighty parts of copper and twenty of tin. GONIOMETER. From yavia, an an- gle, and /nerpov, a measure. An instrument for measuring angles, more particularly those formed by faces of crystals. GONOC'ACE. From yow, knee, and nam?, evil. White swelling of the knee. GON'OCELE. From yovrj, semen, and Krfkrj, a tumor. Effusion of semen out of ruptured seminal vesicles into the cellular tissues. Also, a swelling of testicle and spermatic cord, from supposed retention of semen. GONORRHCE'A. From yovrj, the semen, and peco, I flow. Literally, an involuntary discharge of semen, but used to designate a discharge of mucus from the urethra, which may result either from the direct application of irritants to the lining membrane of this passage, or from impure sexual connection. The former is termed gonorrhoea benigna, and the latter, gonorrhoea virulenta, maligna, or venerea. Gonorrhoea Bai/ani. A purulent dis- charge from the surface of the entire glans penis, which is in a highly inflamed state. Gonorrhoea Dormien'tium. Seminal emission during sleep. Gonorrhoea Laxo'rum. A pellucid urethral discharge without erection. GONORRHEAL. Relating to gonor- rhoea virulenta. GONYAG'RA. Gout in the knee. GONYAL'GIA. Gonalgia. GO'NYOCELE. White swelling or hernia of the knee. GONYON'CUS. From yow, the knee, and oynoc, a tumor. A swelling of the knee. GOOSEBERRY. The fruit of a shrub, and the shrub itself, the Ribes grossularia. Goosefoot. A plant of the genus Che- nopodium. Goose-Grass. A plant of the genus Galium. Goose-Tongue. A plant of the genus Achillea. GOR'DIUS AQUATICUS. The Seta equina, or horsehair worm, found in stag- nant water. GORGET. An instrument used in the operation of lithotomy and fistula in ano. It represents a long gutter in the shape of a throat, which is especially employed in the above operations. GORGO'NIA. A genus of corals. GOSIER. Pharynx. Throat. GOSSYP'IUM. A genus of plants of the order Malvaceae; also, cotton. Used in burns and to blisters. A fluid extract is used as an emmenagogue and abortive ; also in form of decoction. Dose of the decoction, one wineglass. Gossypium Herbaceum. The cotton plant. GOTIT.JM. Goitre. GOULARD'S CERATE. Compound cerate of lead, used on burns, excoriations, &c. Goulard's Extract. A subacetate of lead, prepared by boiling powdered litharge in vinegar. Liq. plumbi diacetatis dilutus. GOURD, BITTER. Cucumis colocyn- this. Bitter apple ; bitter cucumber. Gourd, Worm. Distoma hepaticum. GOUT. ArthrViis ; pod'agra; chir- a / gra; morbus articuWris. Pain, redness and swelling in the joints, especially that of the great toe, and those of the feet and hands. Gout, Diaphragmatic. Angina pec- toris. Gout Paper. Paper spread with a mix- ture of extract of mezereon, wax, spermaceti, and oil. Gout, Rheumatic. Acute rheumatism. Gout-Stone. A stony concretion de- posited in parts affected with gout. Gout-Weed. An umbelliferous plant, formerly used for mitigating the pain of gout. GEA 312 GEA GOUTY CONCRETIONS. Earthy concretions, resembling chalk-stones, formed in the joints of gouty persons. GRAAFIAN FOLLICLES. Small spherical bodies found in the stroma of the ovary. GRACILIS. Slender. The rectus in- terior femoris, a long slender muscle of the thigh. GRADUATED COMPRESS. A com- press formed of a number of pieces of cotton cloth, progressively decreasing in size, the whole forming a sort of pyramid, the apex of which can be applied on the precise point wished, in cases of wounded arteries. GRAIN. Gra'num. The 60th part of a troy drachm. GRAINES DAVIGNON. The unripe fruit of the Rhamnus injector ius, used for dyeing Maroquin leather yellow. GRA'MEN. Grass. Any grass-like herb. Gramen ^Egypti'acum. Egyptian cock's- foot grass. Grass of the cross. Gramen Cruris Cyperioi'dis. Gramen iEgyptiacum. GRAMINA'CE^]. The grass tribe of monocotyledonous plants. GRAMINIVOROUS. From gramen, grass, aud voro, to eat. Grass-eating ani- mals, as the ox and all the bovine genus of quadrupeds. GRAMMA. A scruple. GRAMME. A French weight, equal to 15.434 grains troy, or j^q% drachm avoir- dupois. The 24th part of an ounce. Also, the iris. GRANADIL'LA. The passion flower. GRANA ACTES. Elder berries. Grana Moschata. Musk-seed. See Hi- biscus Abelmoschus. Grana Paradisi. Amomum granum paradisi. The greater cardamom seeds. Grana Secalis Degenerati. Ergot ; Secale cornutum ; Spurred rye. Grana Tiglii. The seeds of the Croton Tiglium, GRAN'ATUM. The pomegranate; a plant of the genus Punica. GRANDIDENTA'TUS. Grandis, large, and dens, a tooth. Having large teeth. GRAN'DINES. The plural of grando, a hailstone. A term applied by Wesser to enlarged tubercles. GRANIF'EROUS. From granum, grain, and jero, to bear. Bearing grain. GRAN / ITE. In Geology, an aggregate rock, composed of quartz, felspar, and mica, irregularly crystallized together. GRANIV'OROUS. From granum, a grain, and voro, to eat. Subsisting on grain ; grain-eating, as birds. GRAN'ULAR. Granulum, little grains. In the form of grains ; of the nature of granu- lations. Granular Disease op the Kidney. B right's disease of the kidney, consisting of granular degeneration, with albuminous urine. Granular Liver. Cirrhosis. GRANULATION. GranuWtio ; from granum, a grain. Red, conical, flesh-like bodies, which form on the surfaces of ulcers and suppurating wounds. They serve to fill up their cavities, and to unite their sides. Also, organic lesions, consisting in the for- mation of small, semi-transparent, oval tu- mors, resembling millet seed. They are most frequently met with in the lungs. In Chemistry, metals reduced to grains or small particles. GRANULE. Gran'ulum. A small grain. GRA / NUM. A grain or kernel. GRAPE. The fruit of the Yitis vini- jera. GRAPHITE. Graph'ites. Plumba'go Black lead. GRASSA. Sub-borate of soda. GRASS OIL OF NAMUR. A volatile oil obtained from Indian nard or Spica nardi. GRATPOL A. A genus of plants of the order Salviacece. Gratiola Officinalis. Digito/Us miiVima; Hedge-hyssop. The leaves are purgative and emetic, and have a nauseous and bitter taste. GRAVE'DO. From gravis, heavy. Ca- tarrh, with a sense of heaviness in the head. GRAV'EL. Lith'ia rena'lis. Small calculous concretions formed in the kidneys, passing into the bladder, are expelled with the urine. See Calculus. Gravel Grass. Goose-grass. Gravel, Pileous or Hairy. A gravel containing hairs, ammoniaco-magnesiau phosphate, and uric acid. GEE 313 GKU Gravel Root. The root of the Eupato- rium purpureum. GRA'VER. An engraving instrument. An instrument consisting of a steel stem, fixed in a handle, with a sharp point, shaped to suit the particular purpose for which it is intended. It was formerly much used by dentists in the. manufacture of artificial teeth from ivory, and the tooth of the hippo- potamus; but as the use of these substances for dental substitutes has been almost al- together superseded, it is now employed in finishing such substitutes as are fixed on metallic and vulcanite bases. GRAVED. Pregnant. GRAV / IDINE. A sediment in the urine of pregnant women which, by its decompo- sition, gives rise to kiesteine. GRAVIM / ETER. An instrument for as- certaining the specific gravity of bodies. GRAVITATION. The act of moving towards a centre, as when a body falls to the earth. GRAVITY. Grav'itas; from gravis, heavy, weight, heaviness. The tendency of a body towards the centre, or of bodies to- wards each other. Gravity, Specific. Gravitas specifica. The density or weight of a body, compared with the density or weight of another of the same bulk, assumed as the standard. For solids and liquids, water is the standard, and common air for gases. The weight of a solid of any given dimensions, compared with the weight of the same bulk of water, is its specific gravity. Thus, if a solid be first weighed in air, and then in water, it will be found in the latter case to have lost of its weight a quantity equal to the weight of its own bulk of water. Now by dividing the total weight by the loss of weight in water, the quotient will show the specific gravity. GRAY LOTION. The Lotto Nigra, or black wash. GREASE. A specific inflammation of horse's heels, which is said to be contagious, and to communicate to man a disease which protects from small -pox. GREEK FIRE. An artificial fire in- vented by the Greeks, supposed to consist of asphaltum, nitre, and sulphur. GREEN MINERAL. An arsenite of copper. GREENSTONE. A variety of trap rock, composed of felspar and hornblende. GREEN HEART. See Bebeeria. GREEN SICKNESS. Chlorosis. GREEN VITRIOL. Sulphate of iron. GRI'AS CAULIFLO'RA. The anchovy pear. GRIE / LUM. Parsley and smallage. GRIFFITH'S MIXTURE. Mistura ferri composita. Compound mixture of iron. Used in dyspepsia, chlorosis, &c. GRIPES. The colic. GRIPPE. From gripper, to gripe. To catch hold of. The influenza. GROATS. Hulled oats. GROCERS' ITCH. A variety of Eczema impetiginoides, produced by the irritation of sugar. GROIN. The lower and lateral part of the abdomen, just above the thigh. GROM / WELL. A plant of the genus Lithospermum. GROS. Drachm. GROSSULA'RIA. The gooseberry. GROSSULINE. From groseille, a gooseberry. A peculiar principle forming the basis of vegetable jelly ; pectin. GROUND BERRY. Gaultheria. Ground Nut. The fruit of the Bunium hulbocastanum. Ground Pine. Ajuga cliamcepitys. The leaves, which bear some resemblance to those of pine, are stimulant, diuretic, and aperient. GROUSEBERRY. See Gaultheria. GROWTH. The gradual increase of animal and vegetable bodies, especially in height. Also, the development of a morbid tissue. GRUB. Any fleshy dingy-colored larva, whether proceeding from the egg of a beetle, moth, or other insect. Also applied occa- sionally to the sebaceous secretion of the subcutaneous follicles of the skin. GRUINA'LES. Plants that resemble the geranium. GRU / MUS. A eoagulum; a clot of blood. GRU'TUM. Grutum mil'ium. A hard, white pimple or tubercle of the skin, re- sembling; a millet seed, GUI 314 GUM GRYPHO'SIS. From ypvwoo, I incur- vate. Incurvation of the nails. GRY'PHUS LA'PIS. The philosopher's stone. GUA'CO. The Eapatorium guaco, a tree of South America, the juice of which is used by the negroes as a cure of the bites of poisonous reptiles, and it has recently been employed in cholera. GUAFACUM. The concrete juice of Guaiacum officinale ; also, a genus of plants of the order Zygophyllaceas. Guaiacum Officinale. A tree, a na- tive of South America, and several of the West Indian Islands. The wood called Lignumvitce, from its supposed efficacy in syphilis. The shavings or raspings are pre- pared by the turner for the druggist. The resin is a stimulant and alterative, and has been found beneficial in rheumatism, gout, secondary syphilis, scrofulous diseases, and cutaneous eruptions ; the wood is more fre- quently used in the latter affections. Dose, gr. x to xxx 5 of the tincture, £j. GUA / JAVA. Guava; guajabo. The guava tree, or Psidium pomiferum. GUA / NO. The excrement of sea-birds. It is a most valuable manure, and has of late years been very largely used by farm- ers. It has been recommended by M. Des- martis, of Bourdeaux, as a remedy in chronic skin diseases. GUANINE. A yellowish- white crystal- line powder, obtained from guano by diges- tion in milk of lime, and precipitation with hydrochloric acid. It is found in human urine. GUAVA APPLE. The fruit of the Psidium pomiferum. GUBERNAC'ULUM DEN'TIS. A name given by M. Serres, a French anato- mist, to the small chord which connects the sac of a tooth with the gum. This appen- dage is described by Delabarre as being hollow, and as playing an important part in dentition. See Dentition, and Teeth, Origin and Formation of. Gubernaculum Tes / tis. LigamenHum testis. A name given by Hunter to a fibro- cellular chord, which, in the foetus, extends from the scrotum to the testis. GUILANDFNA MORIN'GA. See Moringa Aptera. GUINEA PEPPER. A plant of the genus Capsicum. GUINEA-WORM. A worm of the genus Filaria, found mostly in both the Indies. It is sometimes twelve feet long, and about the thickness of a horse-hair. It burrows commonly under the skin in the feet and legs of the West India slaves, but it is sometimes found in the muscular part of the arm. GUIZO'TIA OLEIF'ERA. A compo- site plant of India, from the fruit of which fixed oil, used for culinary and other pur- poses, is obtained. GU / LA. The upper part of the oesoph- agus and pharynx. GUL ATTAR. Attar of roses. GUI/LET. The oesophagus. GUM. Gummi. A concrete vegetable juice which exudes from certain trees, gen- erally transparent, more or less brittle when dry, and soluble in water. Also, the fleshy substance which surrounds the necks of the teeth, and invests the alveolar border. See Gums. Gum Acacias. Gum Arabic. The con- crete juice of the Acacia vera, and other species of Acacia. Gum Boil. Alveolar abscess. Gum Elastic. Caoutchouc. Gum Lancet. DentiscaV pium ; odon- tog' 'lyplwn. A curved instrument or knife for separating the gums from the neck of a tooth, previous to extraction. The gum lancets usually employed are shaped like a fleam, but different dentists have them constructed differently. Two, however, are required, one with a thin, narrow, curved blade, oval at the point, and another with a sharp-pointed narrow blade, with only one edge. Gum Lancet, Merry's Revolving. This instrument " consists mainly of two shafts ; one is round and small, the other is larger and part round and part octagon. Just back of the spiral spring which curves down at the lancet end, is seen a piece connecting the two shafts. This piece is soldered fast to the round shaft, while the upper end of it forms a collar in which the round part of the larger shaft slides back and forth and revolves. On the other end of the large shaft is seen a screw, made by winding a wire spirally round it. This is the male GUM 315 GUM screw. From the small shaft rises another, but shorter, spiral wire, which fits in the male screw. The short one may be con- sidered the female, or nut, in which the other revolves. The ends of the short spiral are soldered fast to the small shaft. If, then, the large shaft is revolved, the screw on it playing in the female, is made to slide back and forth, accordingly as it may be revolved. This motion then changes the direction of the point of the lancet to the plane of the shafts, any degree from a right angle to a parallel. Having thus got the desired inclination, the blade is inserted into the gum at the point at which the in- cision is to begin, and as the instrument cuts, rotate the larger shaft slightly, and the blade will follow the outline of the tooth as it cuts round it." Gum, Red. A red cutaneous eruption which occurs in infancy, and generally dur- ing first dentition. Gum, Wasting of. See Ulatrophia. GUM / MA. An elastic tumor on the periosteum, especially of the cranium and sternum, usually resulting from a syphilitic taint. GUM'MI. See Gums. Gummi Aca'ci^e. Gum arabic. Gummi Caran'n^e. A resinous substance, said to be derived from Amyris caranna, a tree of Mexico and South America. Gummi Ceraso'rum. The gum which exudes from the bark of cherry trees. Gummi Courbaril. Gum anime, a resin said to be derived from the Hymencea cour- baril. Gummi Euphor'bii. A concrete resinous juice from one or more species of Euphorbia. Gummi Ki'no. See Kino. Gummi Lu'tea. A gum-resin produced by the grass-tree of New South Wales. Gummi Myr'rh^e. Myrrh, a resinous ex- udation from the Balsamodendron myrrlia. Gummi Nostras. The gums obtained from indigenous trees, as the cherry, apri- cot, almond, peach, &c. Gummi Rub / rum Gambien'se. Kino. GUM-RESIN. Gummi resina. The concrete juices of plants, consisting of gum and resin, frequently associated with essen- tial oil, and other substances. GUMS. Gingivae. OvXa. A thick, dense, mucous membrane, adhering to the perios- teum of the alveolar border, and closely sur- rounding the necks of the teeth. The tex- ture of the gums, however, differs from that of the membrane of which they seem to be composed. They are thicker and denser, and possess less sensibility. They have a free margin about half a line in width, which surrounds the base of the crown of each tooth, and instead of forming a hori- zontal line, they present a scolloped or festooned appearance, caused by elonga- tions in the interdental spaces. From the edge of the free margin the gums are re- flected back upon themselves, and unite with the true peridental membrane. The portion which adheres to the necks of the teeth is of a very fibrous structure. When in a healthy state, the free border is very thin. This membrane lines the cavities of the mouth and nose, the maxillary and fron- tal sinuses, the whole alimentary canal, and is a continuation of the skin covering the outer surface of the body. From the change of structure, however, which it undergoes after entering the mouth, it maybe regarded as an entirely different membrane. The gums of the upper jaw are supplied with bloodvessels from the superior coronary artery, and those of the lower from the sub- mental and sublingual arteries; they derive their nerves from the superior dental branches of the fifth pair. The gums are remarkable for their in- sensibility and hardness, when healthy, but exhibit great tenderness, upon the slightest touch, when diseased. In the infant state of the gums, the cen- tral line of both dental arches presents a white, firm, apparently cartilaginous ridge, which gradually becomes thinner as the teeth advance ; and in old age, after the teeth drop out, the gums again resume somewhat their former infantile condition, showing " second childhood." The gums may be regarded as that por- tion of the mucous membrane from which the teeth papillae and dental sacs originate, and these contribute in an eminent degree to the stability of the teeth after their erup- tion. For physical characteristics of the gums, see Harris's Dental Surgery. Gums, Diseases of the. The gums and alveolar processes, from apparently the same cause, assume various morbid conditions. GUM 316 GUM An unhealthy action in one is almost cer- tain to be followed by disease in the other, the most common form of disease, to which the gums are subject, is usually, though very improperly, denominated scurvy, from its supposed resemblance to scorbutus, " a genus of disease in the class cachexice, and order impetigines, of Cullen." To this dis- ease, however, it bears no resemblance. The susceptibility of the gums to the ac- tion of morbid irritants is always increased by enfeeblement of the vital powers of the body. Hence, persons laboring under ex- cessive grief, melancholy, or any other affec- tion of the mind, or constitutional disease, tending to enervate the physical energies of the system, are exceedingly subject to in- flammation, sponginess, and ulceration of their gums. But notwithstanding the in- crease of susceptibility which the gums de- rive from certain constitutional causes and states of the general health, these influences, in the majority of cases, may all be counter- acted by a strict observance of the rules of dental hygiene, or, in other words, by regu- lar attention to the cleanliness of the teeth. Gums, Effects of Lead on the. It would seem, from the observations of Dr. Burton, that the introduction of lead into the system, whether by persons who have been exposed to the action of it in the usual course of their avocations, or who have taken acetate of lead medicinally, imparts to the edges of the gums a leaden blue. On the other hand, Dr. Chowne states that he has met with several instances in which the blue line on the gums was observable without any evidence that lead had been taken into the system. Gums, Inflammation, Turgescence, Ulceration, and Recession of. A compli- cation of disease to which the gums are very liable ; causing the teeth to loosen, and when not arrested, ultimately to drop out. The gums when thus affected present a deep florid or purple appearance; their edges are thick and round, and on being pressed, purulent matter is discharged from between them and the necks of the teeth. They are usually very sensitive, sometimes slightly painful, or bleeding from the most trifling injury. The disease generally first makes its ap- pearance around the lower front teeth and the upper molars, opposite the mouths of the salivary ducts, and in the immediate vicinity of aching, decayed, dead, loose, or irregularly arranged teeth, or in the neigh- borhood of roots of teeth, and from thence it extends to the other teeth. The rapidity of its progress depends on the age, health, and constitutional temperament or habit of body of the individual, and the nature of the local irritants which have given rise to it. In some cases it exists for years without causing any perceptible recession of the gums, or destruction of the alveolar pro- cesses — the only unpleasant consequences attending it, being a vitiated state of the secretions of the mouth, and an offensive breath. In other instances it progresses so rapidly that, in a few weeks or months, both the gums and the alveoli become involved in the diseased action. When the inflammation of the gums is favored by a constitutional tendency, it soon extends to the alveolar and dental perios- teum, often causing a deposition of bony matter at the bottom of the alveoli. Nor do the pernicious effects of the dis- ease always stop here. Constitutional symp- toms often supervene, more vital organs be- come implicated, and the health of the gen- eral system is sometimes seriously impaired. Hence the improvement in the constitutional health often observed after the loss of the teeth of persons who have for a long time been affected with the disease. No con- dition of the mouth has a greater tendency to deteriorate its secretions, and impair the function of mastication, than the one now under consideration. The diseased action often extends to the alveolo-dental periosteal tissues. They be- come the seat of subacute inflammation, are thickened and pour out a purulent fluid which gradually breaks down aud destroys the walls of the alveoli, so that the extrem- ities of the roots of the teeth of the upper jaw protrude so far through them and the gums as to be a source of annoyance to the lips and inner walls of the cheeks. The teeth of first dentition are more liable to be thus affected than those of second, and in this case they should always be immediately extracted. It is not necessary that there should be aching, decayed, dead, irregularly arranged teeth, or tartar, to irritate the GUM 317 GUM gums and alveolar membrane. The ar- rangement of the teeth is often such, even when regular, as to produce inflammation in certain parts of the mouth, which sooner or later, according to the constitutional ten- dency, results in disease. Hence it is, that, when all the teeth are sound, we occasion- ally see a gradual wasting of such parts of the gums as are most prominent, especially those which surround the cuspidati and the palatine fangs of the upper molar teeth. Thus it will be seen that local agents may exert a considerable influence in the production of the disease, without being easily detected. It should also be recol- lected that a person of sixty, seventy, or even eighty years of age, is exposed to the same, and, perhaps, more powerful local causes of irritation than one of twenty ; and the reason the effects are not always de- veloped in earlier life, is, that there are greater tendencies to this disease in some constitutions than others. Dr. Koecker, who has had the most ample opportunities of observing the affection in all its various forms, says he has never seen a case of it in which tartar was not present. It attacks persons of all ages, ranks, and conditions, and in every country, climate, and nation. " I have observed," says Dr. Koecker, " the inhabitants of the most op posite countries, the Russians, the French, the Italians, the Spaniards, the Portuguese and English, the Africans, the East and West Indians, and those of the United States, to be more or less liable to it." It is, however, more frequently met with in the lower than the higher classes of so- ciety. Persons who pay no attention to the cleanliness and health of their teeth, are particularly subject to it. With sailors, and those who live principally on salt provisions, it is very prevalent. " Persons of robust constitutions," says the author just quo- ted, " are much more liable to this affection of the gums, than those of delicate habits ; and it shows itself in its worst forms, oftener after the age of thirty than at any earlier pe- riod." Everything that tends to produce inflam- mation in the gums and alveolar processes, may be regarded as as an exciting cause of the disease. To those that have already been enumerated, may be added accumula- tions of extraneous matter on the teeth, and along the edges of the gums, exostoses of the roots of the teeth, artificial teeth badly inserted, or of improper materials, and den- tal operations injudiciously performed. The use of tooth-brushes wrongly constructed, and improper tooth powders, especially charcoal, may be reckoned among its excit- ing causes. Strumous individuals sometimes have an affection of the gums which differs from the one just described in many respects. The gums instead of being purple and swollen, are paler and harder than ordinarily, and, on being pressed, discharge a muco-puru- lent matter, of a dingy white color. They often remain in this condition for years, without appearing to undergo any physical alteration, or to affect the alveolar processes. Its effects are the most simple and inno- cent of any form of disease to which the gums are liable ; but its cure is often very difficult and sometimes exceedingly tedious. Spongoid inflammation of the gums is generally regarded by dentists as being ca- pable of cure, and so far as regards the res- toration of this structure to health, it most assuredly is; but when the gums have lost their connection with the teeth, a reunion can never be established. For treatment, see Harris's Dental Surgery. Gums, Prurient Growth of. This af- fection is characterized by swelling and in- flammation of the gums, and morbid growth of their substance ; so that, in some instances, the crowns of the teeth are entirely covered, and mastication rendered exceedingly diffi- cult and painful. The gums, when affected with it, are of a dark purple color, with thick, smooth, rounded edges, and discharge a very fetid matter. They hang loosely around the teeth, and are attended with a peculiar itching sensation, which at times, is very annoying ; they are also so very sen- sitive, that even the pressure of the lips pro- duces pain. Their vessels are turgid, and often bleed profusely from the slightest touch. The breath of a person thus affected is exceedingly offensive, the saliva is vitiated, and so viscid, that it is even difficult to spit. This peculiar affection, though caused by local irritants, appears, nevertheless, to be dependent on a cachectic tendency of the GUT 318 GYX general system. For the treatment see Harris's Dental Surgery. GUN COTTON. An explosive substance prepared by steeping clean cotton in a mix- ture of sulphuric and nitric acids, and then washing it carefully aud drying it. Used principally in the manufactureof collodion. GUN J AH. The dried hemp plant after it has flowered, and from which the resin has not been removed. It is used by the Hindoos and Arabs for smoking. GUNNERA PERPEN'SA. A South African plant of the order Urticacece. It is tonic and demulcent. GURGLING. The mucous rale, as heard on auscultation, when there is a cavity in the lungs. GURGIFLIO. Penis. Uvula. GUSTATION. Taste. GUSTATO'RY. Gustati'vus ; from gus- tus. taste. Pertaining to taste. Gustatory Nerves. The nerves of taste. See Lingual Nerve. GUSTUS. Taste. GUT. Intestine. GUTTA. A drop. Also, apoplexv. GUTTA ANODYNA. Anodyne drop. A solution of acetate of morphia. Gutta Gamba. Cambogia. Gutta Nigra. The black drop, a prep- aration of opium. Gutta Opaca. Cataract. Gutta Percha. The concrete juice of a tree belonging to the natural order Sapo- tacecB, a native of Singapore. It is of a grayish-white color, and below the tempera- ture of fifty degrees, is of the hardness of wood, but when put in boiling water it be- comes very soft and pliable. In this state it may be moulded into any form, which it will retain on cooling. It is used in making bougies, catheters, enema-pipes, splints, and for taking impressions of the month. It has also been used in combination with other substances as a temporary filling for teeth, as a base for artificial teeth, and for temporary plates in the vulcanite process. A solution of gutta percha, in chloroform — Trail' m at icine — has been used with advan- tage topically in cutaneous affections, ul- cers, as an ectrotic in small-pox, and for the temporary relief of odontalgia. Gutta Rosea. A cutaneous eruption of the face, of red, shining, suppurative tuber- cles, having an irregular granular appear- ance, frequently caused by excessive drink- ing. Gutta Serena. Amaurosis. GUTTERIA. From gutter. Broncho- cele. GUTTIF'ERiE. The mangosteen tribe of dicotyledonous plants. GUT'TUR. The throat, larynx, or trachea. GUT'TURAL. Pertaining to the throat. Guttural Artery. The superior thy- roideal artery. GUTTURNIA. The arvtenoid cartilages. GYMNA'SIUM. A place for bodily ex- ercise. GYMNASTICS. GymnastV cus ; from yvfivog, naked, because the athleta? were stripped. That part of hygiene which con- sists in bodily exercise, such as wrestling, running, using dumb-bells, kc. GYMNOC'LADUS CANADENSIS. A tree indigenous in the Mississippi valley. The leaves are cathartic, and the seeds are used as a substitute for coffee. GYMNO'SIS. Denudation. GYMNOSPER'MIA. From }vuvoc, naked, and c-epua, a seed. An order of plants which have naked, or apparently naked, seeds. GYMNOSPERMS. In Botany, naked- seeded plants. GYXJiCEI'A. Catamenia; lochia j fe- male diseases. GYXJECE'OL In Botany, the pistil- late system of a flower ; the female appa- ratus in plants. GYN.ECOLOG'IA. Doctrine of the nature and diseases of women. GYNECOMANIA. From j vi-r. woman, and fiavia, madness. Insanity from love for woman. GYN.ECOMAS'TUS. A man whose breasts are as large as a woman's. GYN.ECOMYS 'TAX. From ; m • . wo- man, and uvcrra;, beard. The hair on the female pudendum. GYNAN'DRIA. From 3 n^, a woman, and avqp, a man or husband. In Botany 7 plants which have the stamens seated on the pistil, by which the male and female or- gans are united. Hermaphrodism. " GYNANDROP'SIS PENTAPHYL'LA. Cleone pentaphyUa. An indigenous plant HAB 319 HAB having diaphoretic properties. The juice alone, or mixed with oil, has been used in earache. GYNANTHRO'PUS. Gynan'drus. An hermaphrodite, partaking more of the male than of the female sex. GYNATRESIA. From ywrj, a woman, and arprjTog, imperforate. Im perforation of the female external parts of generation. GY'NE. A woman ; a female. GYNIDA. An hermaphrodite. GYNOBASE. In Botany, the support- ing disk or axis of the ovary. GYNOPHORE. From yvvq, and , the eye. Effusion of blood into the eye- ball, or eyelids. H^EMAPH^E'IN. From aifia, blood, and aiog, of a dusky color. The brown coloring matter of the blood. H^EMAPOPH'YSES. Costal cartilages. H^EMAPOR'IA. From aifia, blood, and awopng, poor. Bad blood ; paucity of blood. H^EMASTAT'ICA. From aifia, blood, and oraTLKrj, statics. The doctrine of the laws which regulate the action of blood- vessels, or the circulation of the blood. Also, remedies for stopping hemorrhage. H^EMATEC'LYSIS. From aiua, and ekIvolq, loosening. Dissolution of the blood. H^EMATAULICA. From aifia, and avAog, a tube. Vascular system. H^EMATEME'SIS. From aifia, blood, and efiecj, I vomit. A vomiting of blood. A discharge of blood from the stomach. H^EMATHO'RAX. See Haematothorax. HAEMATIC. From atfia, blood. A remedy which affects the system at large by acting in or on the blood. Haematics act as restoratives when they enrich the blood, or as spanJfimics when they impoverish it. H.EMAT'ICA. From aiua, blood. Dis- eases of the sanguineous function. H^'MATIN. See Haetnatosin. H^EMATIS'CHESIS. Arrest or sup- pression of a flow of blood. H^EMATI'TES. From atfia, blood. Bloodstone. A terra applied to a native oxide of iron, from its red color, or from its supposed power of arresting hemorrhage. H^EMATOCATHAR'TICA. Remedies for purifying the blood. H^EMATOCE'LE. From aiua, blood, and K7]7.?/, a swelling. A swelling or tumor caused by an extravasation of blood either in the cellular tissue of the scrotum, the cavity of the tunica vaginalis, or testicle itself. H.EMATOCHE'ZIA. From aifia, blood, and x E &i I go to stool. Bloody stools. H.EUATO'CHYSIS. Hemorrhage. H.EMATOCCE'LIA. From aifia, and Koilia, the cavity of the abdomen. Effu- sion of blood into the abdomen. H.EMATOCOL/PUS. Effusion of blood into the vagina. Accumulation of blood in the vagina from occlusion of the external organ. H.EMATO'DES. From aiua, blood, and £wog, a likeness. Having the nature HaEM 321 HaEM or appearance of blood. See Fungus Haematodes. HaEMATO'IDIN. Hcemin, or blood crystals. Hsematin separated from the globules of the blood, and passed from the state of a non-crystallizable organic sub- stance, to one of a crystalline chemical compound. HaEMATOI/OGY. Hcematolog'ia ; from at/ua, blood, and Xoyog, a discourse. A trea- tise on the blood. HaEMATOI/YSES. Diseases in which there is a diminished coagulability of the blood. HaEMATO'MA. A tumor resembling or containing blood. HaEM'ATOMETER. From aifta, blood, and /xerpov, a measure. An instrument for measuring the force of the blood. HaEMATOMPHALOCE'LE. Hcemat- ompha / lus; from ai/ua, blood, o/z^a/loc, the navel, and ktjAtj, a tumor. An umbilical tumor, caused by an extravasation of blood. HaEMATON'CUS. From aifia, blood, and oyKog, a tumor. A name given by Al- berti to ncevi materni, or varicose tumors. HaEMATOPHOB'IA. From aifia, blood, and (pofSog, dread. That dread at the sight of blood which produces syncope. HaEMATOPLA'NIA. Vicarious haem- orrhage. HaEMATOSIN. Hazm'atin. The red coloring matter of the blood. HaEMATO'SIS. From ai/ia, blood. The arterialization of the blood, or the transfor- mation of the venous blood and chyle into the arterial blood. Also, general formation of blood. HaEMATON'OSUS. From atfia, and voaog, disease. Disease of the blood. HaEMATOTHO'RAX. From aifia, blood, and Supa^, the chest. Effusion of blood into the pleura. HaEMATOX'YLINE. The coloring principle of logwood. HaEMATOX'YLON. A genus of plants, of which there is but a single species, of the order Fabacece. Htematoxylon Campechla/num. The logwood tree; Campeachy wood. It is ex- tensively used in the arts as a dye. It is a mild astringent, and has been employed suc- cessfully in chronic diarrhoea and in dysen- tery and low fevers. HaEMATOZO'ON. Animalculse dis- covered in the blood. HaEMATURE'SIS. Hematuria. HaEMATU'RIA. From aifia, blood, and ovpeo, I make urine. Bloody urine. HaE'MIN. A crystallized substance obtained from dried blood. HaEMPTIS. From aifia, blood, and Ms, denoting inflammation. Literally, inflam- mation of the blood. That alteration of the blood which occurs in inflammation. HaEMODES. Sanguine. HaEMCKDIA. From aifiudeo, I have pain in the teeth. Aching of the teeth ; the teeth set on edge from the use of acerb or acid aliments. Ha^MOPHTHAI/MIA. From aifia, blood, and cxp&a/iftoc, eye. Effusion of blood into the eye. A bloodshot eye. HaEMOPLAN'IA. From aifia, blood, and ivlavri, wandering. Vicarious haemor- rhages. HaEMOP'TOE. See Haemoptysis. HAEMOPTYSIS. From aifia, blood, and tctvo), I spit. Spitting of blood. An expec- toration of frothy blood from the mucous membrane of the lungs, preceded by cough, heat and pain in the chest. Haemoptysis Interna. Haematothorax. Haemoptysis Phthisis. Phthisis pul- monalis. HAEMORRHAGE. Ecemorrhagia ; from aifia, blood, and prjyvvfii, I break forth. The escape of blood from any of the vessels destined to contain it, whether from rup- ture or otherwise. Haemorrhages are divided into active and passi ve ; the former result- ing from increased action ; the latter from debility. They are also distinguished into external and internal; general and local; spontaneous and traumatic. Haemorrhage after the Extraction of Teeth. The haemorrhage occasioned by the extraction of a tooth is seldom consider- able, except in those cases where there is a hemorrhagic diathesis of body, and then it is sometimes excessive and even alarming- Several cases have been recorded in which it baffled every attempt to arrest its progress^, and terminated fatally. Whenever a ten- dency to excessive haemorrhage from the- rupture of one or more small vessels mani- fests itself in one member of a family, com*- 21 H^M 322 HJEM posed of several individuals, it will generally be found to exist in several. Among the means which have been em- ployed for arresting hemorrhage from the socket of a recently extracted tooth, are astringents, styptics, caustics, the actual cautery, and compresses. But the prepar- ations of iron, such as the persulphate, powdered subsulphate, &c, are the best agents that can be relied upon. See Iron. When the haemorrhage is from the dental artery, it may always be arrested by plug- ging the socket tightly with raw cotton, lint, sponge, or a piece of cork, previously satu- rated in the solutions of iron, or tinct. nut- galls, or the replacement of the tooth. When the bleeding is from a number of vessels, and especially from the gums around the alveolus, it is sometimes necessary to apply the actual cautery. HAEMORRHAGE FROM THE GlJMS, SPON- TANEOUS. In depraved or cachectic habits of body, it sometimes happens that passive hemorrhage occurs from the gums, and especially from those portions which occupy the interdental spaces, baffling every effort that can be made to arrest it. It may, how- ever, in the majority of cases, be stopped by the application of the actual cautery or com- presses. The author succeeded in one case with the latter. The best method of ap- plying a compress is to fill a wax-holder, such as is employed for taking impressions for the mouth, with wax previously softened in warm water, and then applying it in such a manner as completely to imbed the teeth and gums in it. This method of compress- ing the gums was suggested to the author by Dr. 0. Holmes of Baltimore. HAEMORRHAGE FROM THE GuMS, VICARI- OUS. In females laboring under amenor- rhcea, periodical haemorrhages from the gums have occasionally been known to oc- cur, the periods of their occurence corre- sponding with the time when menstruation should take place and continuing from three to five or six days. The discharge from the gums, being vicarious, can only be prevented by restoring the obstructed uterine function, unless, as is sometimes, though very rarely the case, it arises from the suppression of some other discharge, as, for example, the haemorrhoidal. In this case the appropriate treatment should be instituted. Hemorrhage from the Lungs. Haem- optysis. Haemorrhage from the Nose. Epis- taxis. Haemorrhage from the Stomach. Haematetnesis. Haemorrhage from the Urinary Or- gans. Hematuria. Haemorrhage from the Uterus. Men- orrhagia. Haemorrhage, Secondary. Haemor- rhage which occurs some time after wounds or operations. H^MORRHA'GLaE. Haemorrhages. A distinct order in the class Pyrexias, of Dr. Cullen's nosological arrangement. H.EMORRHIX'IA. Epistaxis. H.EMORRHCE'A. Passive haemorrhage. HaEmorrhoea Petechials. The occur- rence of haemorrhage from the mouth, &c, in land scurvy. See Purpura Haemorrhagica. H.EMORRHOFD A.L. Hannorrhoida'lw. Relating to haemorrhoids, as a haemorrhoidal tumor, or flux. Haemorrhoidal Arteries. The arte- ries of the rectum. Three are enumerated: the superior, middle, and inferior. Hemorrhoidal Xerves. Filaments sent to the rectum from the sciatic and hypogas- tric plexuses. Haemorrhoidal Veins. They are two, the external and internal, which empty into the lesser mesenteric. HaEMOR'RHOIDES. Hcemor' rhoids ; from aifia, and peu, I flow. Literally, haem- orrhage, but restricted to a varicose enlarge- ment of the veins about the anus and rec- tum, called the piles. They are termed open when they discharge blood, and blind when there is no discharge. H-emorrhoides Oris. Haemorrhage from the veins of the palate, uvula, fauces, and sometimes from the gums, resulting from a suppression of the haemorrhoidal discharge. H-Emorrhoides Uteri. Varicose en- largement of the veins about the genital organs of women. Hemorrhoides Vesicje. Varicose en- largement of the veins about the neck of the bladder. H.EMOR'RHOIS. Haemorrhoides. HaEUORRHOISTHESIS. Suppression of the haemorrhoidal flux. HAL 323 HAM HvEMORRHOPHE'SIS. Absorption of blood. HAEMOSPAS'TIC. From aifia, and GTrao), I draw. A cupping-glass, or any agent which draws or attracts blood to a part. Hasmospa'sia. HAEMOSTASIA. From cu/ia, blood, and GTaatQ, a standing. Stagnation of blood ; any operation that stops the flow of blood. HAEMOSTATIC. Hcemoslaticus ; from aifia, blood, and aTariKog, static or standing. That which is calculated to arrest a haem- orrhage. A styptic. H^EMOTELANGIO'SIS. Telangiecta- sia. HAEMOT'ROPHY. Hcemotroph'ia: from ac/j.a, blood, and rpoatvo, to appear. A grayish-white mineral of an adamantine lustre, composed of oxide of lead, lime, arsenic, phosphoric acid, and chlorine. HELCOC'ACE. BIkoq, an ulcer, and ma??, corruption. Malignant ulcer. HELCO'DES. Ulcerous. HELCOEDE'MA. Elicog, and oldyfia, a tumor. (Edematous ulceration. HEI/COID. EA/coc, and etdog, a form. Resembling an ulcer. HELCO'MA. An ulcer. HELCOME'NIA. m K og, an ulcer, and pr/v, a month. Metastasis of the catamenia to an ulcer; a sort of vicarious menstruation. HELCO'SIS. E/Ucoc, an ulcer. The prog- ress of ulceration. HELCYD'RION". A little ulcer. Super- ficial ulceration of the cornea. HELE / NIN. A concrete volatile oil obtained from Inula helenium. HELEN'IUM. A genus of plants of the order Asteracece. Helenium Autumna'le. Sneeze-wort ; swamp sun-flower. It has a bitter, pungent, and slightly acrid taste ; is tonic, diapho- retic, and also powerfully errhine. HELIAN'THUS. From rjliog, the sun, and av&oQ a flower. A genus of plants of the order Compositce. Helianthus Annuus. The sunflower. Helianthus Tuberosus. Jerusalem arti- choke. HELICA'LIS. Belonging to the helix of the ear. HEL'ICINE AR'TERIES. The short arteries and vessels of the penis, given off from the larger vessels and smaller twigs of the artery of that organ. HEI/ICIS MAJOR. A muscle of the ear, situated upon the upper point of the helix. Helicts Minor. A muscle of the ear, which contracts the fissure of this organ. HEL/ICOID. EA*£, a coil, and eidog, a form. Spiral. HELICOTRE'MA. The foramen by which the scalas of the cochlea communi- cate. HELIOTROPE. Heliotro'pium ; from rfktoq, the sun, and rpeiru, to turn. The bloodstone; a deep green silicious mineral, often variegated with dark brown or blood- red spots. HELIOTRO'PIUM EUROPIUM. Verrucaria; turnesole; garden marigold; a plant which, on account of its supposed efficacy in destroying cutaneous excres- cences, has been called by the French, Herbe aux vermes. See Calendula Offici- nalis. HE / LIX. From eli!-, a coil. In An- atomy, the outer circumference or ring of the outer ear. In Zoology, a genus of Tes- tacea, inhabiting a spiral shell, as the snail. Helix Horten / sis. The common gar- den snail. Helix Pomatia. The great vine snail, esteemed by the ancient Romans as a lux- ury of the table. HELLEBORAS'TER. Helleborus fceti- dus. American hellebore. HELLEBORE, AMERICAN". Veratrum viride; Indian poke; swamp hellebore. Hellebore, Black. Helleborus niger. Christmas rose. Cathartic, emmenagogue. Dose as a purge, gr. x to J^ij. Hellebore, White. Veratrum album. White hellebore. Emetic and purgative. Dose, gr. j to ij. HELLEBORUS. A genus of plants of the order Ranimculacece. Helleborus Fce'tidus. Stinking helle- bore. Helleboraster. HEM 328 HEM Helleborus Xiger. Black hellebore. The root has a bitter, nauseous taste, and is a drastic hydragogue cathartic, and em- menagogue. Helleborus Orienta'lis. An Eastern species, supposed to be the hellebore of the ancients. HEL/MET. In Botany, the upper lip of a labiate flower. HELMIVTHAGOGUES. Edminika- go'ga; from e/.uivg, a worm, and ayu, I expel. Remedies used for expelling worms. Anthelmintics. HELMIN'THIA. See Helminthiasis. Helminthia Errat'ica. Worms acci- dentally introduced into the stomach or intestines. HELMINTHIASIS. A condition of bodv favoring the generation of worms. HELMIN'THOID. Worm-shaped. HELMINTHOI/OGY. Helminthologia; from e/1/j.ivg. a worm, and /070c, a descrip- tion. A treatise on worms. HELMINTHROP'YRA. WLfuvg, worm, and 7Tvp y a fever. Worm-fever. HELO'DES. A fever accompanied by profuse perspiration; the sweating sickness. HELO'PYRA. Marsh fever. HELO'SIS. From eu.u, I turn. Ever- sion of the eyelids. HEMATIC. See Haematic. HEMATITE. Haematites ; Reliotr opium. Bloodstone. HEMATOSIN. See Hjematosin. HEMATURIA. See Hematuria. HEMELYTRA. From j/juiavg, half, and e?MTpov, a sheath. A wing, of which half is coriaceous, and the other half membran- ous. HEMERALO'PIA. From ?juepa, the day, uxl\ the eye. A defect of vision, by which a persou is able to see by daylight, but not at night. HEM'ERALOPS. One affected with hemeralopia. HEMEROD'ROMUS. From r /f iepa, a day, and dpa/iog, a course. A fever which runs its course in a day. Same as Ephem- eras. HEMI. From ?/uiavg, a half. The same as semi, and used as a prefix. HEMICRA'XIA. From r,uiovg, half, and upavtov, the skull. Pain affecting only one side, or one half of the head. HEMIDIAPHORE'SIS. Perspiration of one half of the body. HEMIDES'MUS INDICUS. An Indian plant, used as a substitute for sarsaparilla. Called scented sarsaparilla. HEMTEC'TION. A vessel containing 36 pints, used for fomenting the female organs of generation. HEMIHE'BRAL, or HEMIEDTJC. B.UCGVC, half, and edpa. a base. Having half faces, or facets. HEMIM'ELES. Monsters with defective extremities. HEMIO'PIA. From r.uiovg, half, and o-rouai, I see. A defect of sight, in which a person affected with it can see only one half of an object. HEMIOP'SIS. Heraiopia. HEMIPA'GES. A monstrosity in which twins are united from the navel to the vertex. HEMIPA'GIA. Hemicrania. HEM1PATHIA. Hemicrania. HEMIPHO'XIA. Great weakness of voice. The husky voice of those affected with cholera. HEMIPLEGIA. Hemiplegia; from r^uiGic, half, and -M/Cou. I strike. Paraly- sis of one half or side of the body. HEMISPHERE. Hemisphe'ra; from ?;picvc, half, and aoaipa, a sphere. One half of a sphere, or of a body of spheroidal shape. The upper portion of the brain is divided into hemispheres. Hemispheres of the Braix. Hemi- spherical gan'glia. Are the upper spher- oidal portions of the brain, separated from each other by the falx cerebri. HEMITRIT ^ TS. A semitertian ague. HEMLOCK. A poisonous narcotic plant of the genus Conium. See Conium Macu- latum. Dose of powdered leaves, gr. iv ; of seeds, gr. ij. Hemlock Dropwort. A plant of the genus (Enanthe. Hemlock Pitch. The Pix Canadensis. Hemlock Tree. Hemlock spruce. Srr Pinus Canadensis. Hemlock, Water. Cowbane. See Cicuta Yirosa. HEMORRHAGE. See Ha?rnorrl:;._ HEMORRHAGIP'AROUS. That which gives rise to hemorrhage. HEP 329 HEP HEMORRHOIDES. A French terra for Piles ; which see. HEMP. A plant of the genus Cannabis. Hemp, Indian. A variety of hemp much used in the East as a stimulating and in- toxicating drug. See Cannabis Indica. Hemp Seed Calculus. The small varie- ties of the mulberry calculus are so called from their resemblance to hemp seed. HENBANE. Poison tobacco. See Hyos- cyamus Niger. HEN-BLINDNESS. Night blindness. See Nyctalopia. HENDECAGON. A figure having eleven equal angles and sides. HENNA. A reddish-yellow dye obtained in Egypt from the Lawsonia inermis. HF/PAR. Hrrap. The liver. Also, a term formerly applied in Chemistry to the Sulphurets. Hepar Antimo / niatum. Is a compound of a sulphuret of antimony and an alkali Hepar Martia'le. A compound sul- phuret of potassa and oxide of iron. Hepar Sui/phuris Sali'num. Sulphide of potassium. Hepar Sulphuris Volat'ilis. The hydro-sulphuret of ammonia. HEPATAI/GIA. From W ap, the liver, and aAyoc, pain. Pain in the liver. Hepatalgia Calculo'sa. Pain caused by biliary calculi. Hepatalgia Phlegmonoi'des. See Hepatitis. HEPATAPOSTE'MA. From ? ? rrap, the liver, and arroaT^/xa, an abscess. Abscess of the liver. HEPATATRCKPHIA. Atrophy of the liver. HEPATAUXE. Hypertrophy of the liver. HEPATECHE'MA. Sounds emitted by the liver on percussion. HEPATEMPHRAX'IS. From W ap, the liver, andeficppaoao), I obstruct. Hepatic obstruction. HEPATENCEPHALCKMA. Encepha- loid of the liver. HEPATE'RUS. Fluxus hepaticus. HEPATHELCO'SIS. Rirap, the liver, and eA/cooYf, ulceration. Ulceration of the liver. HEPATIC. Hepat'icus; from V 7rap, the liver. Relating to the liver. Hepatic Ar / tery. Arte'ria hepat'ica. The artery of the liver ; a branch of the cceliac. Hepatic Duct. Ductus hepat'icus. A duct which conveys the bile from the liver towards the duodenum, and being joined by the cystic duct, the two form the ductus communis choledochus. Hepatic Flux. A form of diarrhoea in which there is a copious discharge of biliary matter. Hepatic Plexus. Plexus hepaticus. The nervous filaments of the cceliac plexus which accompany the hepatic artery. Hepatic Veins. Venaz hepaticce. The veins which return the blood conveyed to the liver by the hepatic artery and vena porta, to the vena cava inferior. HEPAT'ICA. American liverwort. A genus of plants of the order Raminculacece. Hepatica Tril / oba. Hepatica Ameri- ca'na. Liverwort. HEPAT'IC^E. The liverwort tribe of acotyledonous plants. HEPATIC'ULA. Chronic hepatitis. HEPATIRRHCE'A. From i/nap, the liver, and peo, I flow. An intestinal flux, with bilious evacuations. HEPATISA'TION. Hepatisa'tio. The conversion of any texture into a liver-like substance. Applied to a morbid condition of the lungs. HEPATFTIS. From qnap, the liver, and itis, denoting inflammation. Inflam- mation of the liver. Hepatitis, Chronic. Chronic inflam- mation of the liver. HEPATIZATION. Hepatisation ; which see. HEPATOC'ACE. Gangrene of the liver. HEPATOCE'LE. From qnap. the liver, and nrfkri, a tumor. Hernia of the liver, or a protrusion of this organ through the ab- dominal parietes. HEPATOCO'LIC. Belonging to the liver and colon. HEPATO-CYSTIC. Pertaining to the liver and gall bladder. HEPATODYN'IA. Rrrap, liver, and odvvrj, pain. Chronic pain in the liver. HEPATOGASTRIC. The smaller omentum, which passes from the liver to the stomach. HEE 330 HEE Hepatogastric. Pertaining to the liver and stomach. HEPATOGASTROCHOLO'SIS. Bil- ious fever. Gastric fever. HEPATOGRAPHY. Hepatogra'pliia ; from rj-ap, the liver, and ypadq, a descrip- tion. An anatomical description of the liver. HEPATOH.E'MIA. From rj-ap, the liver, and ai/ua, blood. Sanguineous en- gorgement, or congestion of the liver. HEPATOLITHFASIS. Formation of concretions in the liver. HE P AT L ' G Y. Hepatolog'ia ; from ijirap, the liver, and /.oyog, a discourse. A treatise on the liver. HEPATOMALA'CIA. Softening of the liver. HEPATOM'PHALUM. Umbilical her- nia containing a portion of the liver. HEPATOMYELO'MA. Hepatencepha- loma. HEPATON'CUS. Tumefaction of the liver. HEPATOPAREC'TAMA. Excessive enlargement of the liver. HEPATOPHY'MA. Abscess of the liver. HEPATOPHTHFSIS. Consumption of the liver. Exhaustion from suppuration of the liver. Wasting ; consumption of liver. Hepatophyma. HEPATORRHEX'IS. Rupture of the liver. HEPATOT'OMY. Dissection of the liver. HEPTAGON". A plane figure with seven equal angles and sides. HEPTAN'DRIA. Heptan'drous ; from ETrra, seven, and avrjp, a man, or husband. Plants with hermaphrodite flowers and seven stamens. HEPTAPLEU'RUM. The broad-leaved plantain. See Plantago Major. HEPTARTOMPHALUS. Umbilical hernia, with a portion of the liver. HERACLE'UM. A genus of plants of the order Umbelliferce. Heracleum Gummif'erum. A plant of the genus Dorema. Heracleum Lasta'tum. Masterwort: cow-parsnip. The root has been used as a diuretic, expectorant, and antispasmodic. Heracleum Spoxdyl'ium. See Spondy- lium. HER'BA. Herb ; a plant with a succu- lent stalk or stem which dies down to the ground every year. Herb a Alexandria. A plant of the genus Smyrnium. Herba Benedic / ta. See Geum Urba- num. Herba Britax'xica. See Rumex Hy- drolapathum. Herba Fel'is. See Xepeta cataria. Herba Jc'lta. Milfoil. Herba Melaxcholi'fuga. See Fumaria Officinalis. Herba Pa / tri. See Primula Yeris. Herba S.a/cra. See Verbena Trifoliata. Herba Trinita'tis. See Anemone He- patica. HERBACEOUS. Eerbaceus. Nat woody ; like an herb. HERB'ALIST. One who deals in herbs. HERBARIUM. A collection of dried specimens of plants. HERBI\ 7/ 0R0US. From herba, grass, and voro, I eat. Animals which feed on herbs. HERBORIZA'TION. A tour for the collection of plants. HERCULES BOVII. A violently pur- gative preparation, consisting of gold and mercury dissolved in a distillation of sul- phate of copper, nitre, and sea-salt. HER'DERITE. A crystallized mineral, imbedded in flour at Ehrenfriedensdorf, Saxony, and discovered by Herder ; it has a vitreo-resinous lustre. HEREDITARY. Heredita'rius; from hceres, an heir. An epithet applied to dis- eases propagated from parents to their off- spring, as phthisis pulmonalis. &c. HERMAPHRODITE. Hermaphrodi'. ius ; from Epu^c, Mercury, and X6po6irrj, Venus, that is, partaking of both sexes. One who has the organs of the two sexes so developed as to render it doubtful to which it belongs. In Botany, a flower which contains both stamens and pistils. HERMETIC. Hermet'ieus; from ~Epurjc, Hermes, Mercury, the fabled inventor of chemistry. Pertaiuing to chemistry. That part of chemistrv which had for its object the pretended transmutation of the metals. Hermetic Seal. The closing of a glass HER 331 HER vessel in such a way as to prevent the most volatile substances from escaping. It is generally done by fusing the orifice with a lamp and blowpipe. HERMODAC'TYLUS. A bulbous root brought from the East, supposed to be the product of the iris tuberosa. HERNIA. From epvog, a sprout, a shoot, a branch. Bamex, Ruptura. A tumor formed by the displacement and protrusion of the whole or part of a viscus. Hernia is distinguished according to the region in which it occurs. It is termed reducible, when it can be readily returned back into the abdomen ; irreducible, when there is no constriction, yet from adhesion or its large size, it cannot be put back ; and strangu- lated, or incarcerated, when its reduction is prevented by constriction. Hernia may exist from birth, or occur from accident or injury at any subsequent period of life. In the former case it is termed congenital, and in the latter accidental. The term Hernia is applied to various lesions which have none of the distinguishing characteristics of rupture and protrusion of an organ or viscus. Hernia Cer'ebri. Encephalocele. Her- nia of the brain. Hernia Congenita. The adhesion of a protrusion of intestine or omentum to the testicle, after its descent into the scrotum. Hernia Crura'lis. Femoral hernia. Hernia Epiplo'ica. Epiplocele. Omental hernia. Hernia Femora'lis. Hernia cruralis. Hernia Humora / lis. See Orchitis. Hernia Incaroera'ta. Incarcerated or strangulated hernia. Hernia with a stricture. Hernia Inguina / lis. Bubonocele. In- guinal hernia. Hernia Intestina'lis. See Enterocele. Hernia Ischiat'ica. Hernia of the ischiatic notch. Hernia Lachryma / lis. Swelling from distension of the lachrymal sac. Hernia Litt'rica. So called from Lit- tre, who first described it. A hernia con- taining only a digital prolongation of the ileum, supposed to be formed by the gradual extension of a knuckle of intestine which had been involved in the inguinal canal. Hernia Mesenter'ica. Mesenteric her- nia. Hernia through the lacerated mesen- tery. Hernia Mesocoi/ica. Mesocolic hernia; protrusion of a portion of intestine between the folds of the mesocolon. Hernia Omenta / lis. Epiplocele. Omen- tal hernia. Hernia Oschea'lis. Scrotal hernia. Hernia Perinea / lis. Perineal hernia. Hernia Pharyn'gis. See Pharyngo- cele. Hernia Phren'ica. Diaphragmatic her- nia. Hernia Pudendals. Pudendal hernia. Hernia Sac'ci Lachryma'lis. Rupture of the lachrymal sac. Hernia Scrota / lis. Oscheocele. Her- nia oschealis. Scrotal hernia. Hernia Thyroidea'lis. Thyroideal her- nia. Hernia Umbilica / lis. Umbilical her- nia. Hernia U'teri. Hysterocele. Hernia of the uterus. Hernia Vaginalis. Vaginal hernia. Hernia Varico'sa. See Varicocele and Cirsocele. Hernia Vena'rium. See Varix. Hernia Veneris. A tumefied testicle. Hernia Vento / sa. See Pneumatocele. Hernia Ventra'lis. A hernia at any point of the anterior part of the abdomen. Hernia Ventric/uli. Gastrocele. Ab- dominal hernia of the stomach. Hernia Vesica / lis. Cystic hernia. Cys- tocele. Hernia of the urinary bladder. HER / NIAL. Pertaining to hernia. HERNIEMPHRAG'MUS. Radical cure of hernia by obstructing the canal. HERNIOTOMY. From hernia, and TOfiy, incision. The operation for hernia. HEROIC. An epithet applied to medi- cines or practice of a bold or vital charac- ter. HER'PES. From eprru, I creep, because it creeps and spreads about on the skin. Tetter. A cutaneous eruption, appearing in patches, upon an inflamed base, attended with more or less heat, itching, and some- times considerable local uneasiness, but terminating in from eight to fifteen or twen- ty days in furfuraceous scales. Herpes Ambulati'vus. Thought by some to be an erratic erysipelas. Herpes Circina'tus. Ring-worm ; a variety of herpes which appears in circular HER ;:. HET upon the neck, face, forehead, scalp, or back of the hands. Heepes Depas'cens. A corroding form of he: Herpes Esthiom'exos. Herpes attend- ed by ulceration and great destruction of skin. Herpes Exe'dexs. Herpes which spreads rapidly. Herpes FARixo'srs. Herpes having : Zr- furaceous exfoliations. Herpes Fe'eus. Erysipelas. Herpes Lf'pzcus. An itching herpes peculiar to India. Herpes 1'ris. A cutaneous eruption occurring in small circular patches on the palms of the hands, fingers, and instep, each consisting of concentric rings of differ- e::: : : ". ::s. Herpes Labla/lis. A cutaneous erup tion on the edges of the lips, and about the corners of the mouth. Herpes Milia'ris. Herpes beginning with an eruption like millet seeds. Herpes Peris'celes. Herpes zoster. The shingles. Herpes Phlyctjesoide-. ^ vesicular eruption usually preceded bv slight feTer. and occurring in irregular clusters, most frequently on the cheeks, neck, arms, breast, and sometimes on other parts of the body. The vesicles, which contain a colorle- ■ sometimes a brownish fluid, break about the fourth day, or begin to dry up, forming a dark or yellowish scab, which about the eighth or tenth day falls off. when the sub- jacent skin gradually assumes a healthy appearance. Herpes Pr-eputia'lis. A vesicular eruption either upon the outer or inner sur- face of the prepuce. Herpes Pfstulo'ses. A name applied to different forms of acne. Herpes Serpi'go. Herpes circinatus. Ring- worm. Herpes Sic'crs. The dry, mealy tetter Herpes Zoster. A variety of herpes, which spreads around the body like a girdle or belt, commonly called shingZ: HERPETIC. Herpetic**; from herpes, a disease of the skin. Pertain::. HERPETOL/OGY. Herpetolog'ia; from - - , a reptile, and /.o^oc. a discourse Erpetology. The science or the history of re::7es. HEZ7Z 1 ST. Herpetiam; from epsrav, to creep. In PaOuAogy^ a creeping nicer; in Zool&gy, a genus of serpents. HESPERIDTfcZE zVergreen plants with rigid leaves, odorous and poljandrous fibers, r:::. :.- '.'--. Z:~e. ~yr:".e. ^:^:er- zz --... i : ZZ-7ZZ777ZZ A peculiar, crystal- 7ZZZ-E ;::=:i::r i-^::-l :z :i- :::: :: :ie unripe bitter orange. HESPER'IDUM. In Botamy, a fruit i .-._r :'::-. sir _:■::: re :: :~e ::^i b - iii.e- HESS I 7 7 II LI. A crucible ~ iZ :: z:t : ' ..- n: =i: . ZZ7 ERADEL/PHIA. Erzpoc, other, r:7er. 7:::: ::' tie b:Zy of two foetuses ; one of perfect growth, the other undeveloped. HETTERADE'NTA. Et^wc, and mSmm, . £ :. Z A ie:er:".:r: _s iiriiiU.L :: r.-i- : . i r - : ": r • :. ■ : r . HE. 17. A prefix, from erepoc, dif fere:.:. -~-i Z. -eiZZ.e. HET'ERu-CHYMZZ -I- A depraved chynr. : . i :7-.;i :: ::::.::: :i -_..i :_.r : : : :rs. HETER0CLI7Z Bee Be I HETEROGAXGLIA'TA. FTomertpoc, 7":'::, 17.1 ' 1". ' ■■ 1 7t:"t-'..: -L name proposed by Professor Owen to eom- 7_ri«.T i7 :_r M77-«:-i ::' . _~er. -.-._ 7-e :_:::: : i :: :V.f 7 :r: :- Z. HE7Z7. . -I ZI Z5 7Z. - _ >:: Z ['•::-- 1 - : h : m : re~e: u = 77Z7. DS FISSUBS Mor- bid tissues. ^: Zr.eroplasis. HETEROLA'LIA. Ercpoc, different, and Ao/./.a, speech. A t in speeeh. HE777. Z7?7Z7 Heteromor- phWrnMs: from rrepoc. other, and ^ q p w?, shape. Malformation, or deviation from i:.:::Z -:7i" r :: :ar:s. HE 7 Z Z Heteropafr'ia ; from rrepoc, different, and to&oc. affection. The removal of a morbid condition of body Allopathy. HETER PHO XIA. From ertpoe. di£ :7:e :. ai: :•_ v.;. T i: -._:^.:t:. :-.ir7 :: 7:._t_ v... r . HIA 333 H1L HETERO'PLASIS. Heteroplastic ; from erepog, different, and irlaotg, formation. Formations which do not belong to the healthy body, as cancer, &c. HET'EROPODS. Heteropo'da; from erepog, various, and wovg, a foot. An order of gastropodous mollusca. HETEROSARCO'SES. From erepog, different, and capf, flesh. Diseases which consist in the production of false tissues. HETEROT / ROPAL. From erepoc, and rpeizu, I turn. A term applied in Botany to a seed in which the embryo lies across the lobes. HETEROTAX'IA. From erepoc, dif- ferent, and ra^ig, order. Transposition of organs. HETEROTOPIA. From erepoc, and ro7roc, place. Deviation of parts from their natural place. HEUCHE'RA. The alum root. A ge- nus of plants of the order Saxifragece. Heuchera Cortu'sa. Heuchera Ameri- ca'na. Heuchera viscida. The alum root, or American sanicle ; a perennial, indigen- ous plant, the root of which is extremely astringent. HEVEA GUIANENS'IS. Hevea elas- tica. One of the trees which yield caout- chouc. HEX'AGON. Hexag'onal. A plane figure, having six equal angles and sides. HEXAGYN'IA. In Botany, an order of plants with six petals. HEXAHEDRON. A regular solid fig- ure bounded by six equal sides ; a cube. HEXAN'DRIA. In Botany, an order of plants with six stamens of equal length. HEXAN'GULAR. Having six angles. HEXAPE'TALOUS. Having six pet- als. HEXAPHYI/LOUS. Having six leaves. HEX'APODS. Hexapo'da; from e£, six, and novg, a foot. An order of insects which have six feet. HEX'IS. E£ic, habit. Habit of body. Constitution. HIA'TUS. From Mare, to gape. Lit- erally, a gap. In Anatomy, an orifice, aperture, or passage. Also, yawning. Hiatus Fallo'pii. See Aqueduct of Fallopius. Hiatus of Winslow. The foramen of Winslow. HIBER'NACLE. Hibernac'ulum; from hiberno, to winter. In Botany, the winter covering of buds ; the bulb or bud in which the embryo of a future plant is inclosed. HIBERNATION. The state of some animals during winter, in which the vital functions seem nearly suspended, as the bat, hedgehog, dormouse, &c. HIBER'NICUS LAPJS. A kind of bluish slate, found in masses in different parts of Ireland. HIBISCUS. Althaea. A genus of plants of the order Malvacece. Hibiscus Abelmos'chus. The plant which yields the Grana moschi, or musk seed. Hibiscus Populous. A small tree or shrub of Molucca, which bears a resinous fruit. The root is emetic. HIC / CUP. Hiccough; singuVtus ; spas- modic contraction of the respiratory mus- cles, repeated at short intervals, with so- norous inspiration. HICK70RY. Trees of the genus Carya. HIDRO / A. From idpug, sweat. A term applied in Pathology by Sauvages and Vo- gel, to eczema, or heat eruption. HIDRON'OSOS. Sudor anglicus. Sweating sickness. HIDROPH'OROUS. Sudoriferous. HIDROPY'RETUS. A sweating fever. HID'ROS. From idptog, sweat. Sweat ; a term used in the composition of many words, as Hidrotica, sudorifics. HIDROT'ICA. From idpiog, sweat. Su- dorifics j medicines which cause perspira- tion. HKERA PFCRA. From tepog, holy, and iriKpog, bitter. Holy bitter. An aloetic powder made into an electuary with honey. HIERA'CIUM. A genus of plants of the order Composite. Hieracium Pilosei/la. The system- atic name of the Auricula muris, or mouse- ear, a plant containing ayu, I eat. One who eats raw flesh. HOMOPLAS'TY. From o/xoiog, like, and 7r?iaao(j, I form. The formation of ho- mologous tissues. HOMOPLATA. Omoplate. Scapula. HOMOT'ROPOUS. In Botany, the same direction as the body to which it is attached. HOMOT'ONOS. Acmasti'cos. Having the same tone. HOM'OTYPE. Ouog, equal, and rvrrog, form. Applied by Owen to a repeated part in the segments of the same skeleton. HONESTY. See Lunaria Rediviva. HONEY. Mel. Mellis. A mucoso- saccharine substance, of a yellowish color and aromatic smell, elaborated by the Apis mellifica, or honey-bee, from the nectaries of flowers, and deposited in the cells of the comb. Honey Dew. A saccharine substance found on the leaves of many trees during moist weather. Honey of Squill. See Syrupus Seillse Compositus. HONEYSUCKLE. A plant of the genus Lonicera.' HOODED. Cucullate or cowled. See Cucullate. HOOK. A curved steel instrument, used by anatomists, surgeons, and dentists. The tenaculum is a variety of hook used by the two former, and the hook, belonging to the key of Garengeot, and the one with the forked or crescent-shaped extremity, with a straight shaft attached to a handle, and used for the extraction of the roots of molar teeth, are the kinds employed by the latter. Hook, Blunt. In Obstetrics, a hook with a long straight handle for bringing down the limbs of the foetus during delivery. HOOKED. Curved suddenly at the point. HOOPER'S PILLS. A celebrated nos- trum, used as a purgative and emmena- gogue, composed of aloes, sulphate of iron, black hellebore, canella bark, myrrh, and ginger. HOOPING-COUGH. Pertussis. HOPS. The strobiles of Humulus lu- pulus. HOR'DEIN. A peculiar substance found in barley, allied to starch, but a distinct substance. HOR'DEI SEM'IXA. Eor'deum per- Wtum. Pearl barley. HORDEOLUM. A diminutive of hor- deum, barley. A stye, or small tumor of the eyelids, which is somewhat of the nature of a little boil. HOR'DEUM. Barley. Also, a genus of plants of the order Graniineo?. Hordeum Caus'ticum. Teratrum sab'a- dilla. Indian caustic barley. Hordeum Perla'tum. Pearl barley. Hordeum Vulga're. The common bar- ley. HOREHOUND. A plant of the genus Marrubium. Horehound, Black. Stinking hore- hound. Ballota nigra. Ballota fcetida. Horehound Tea. Infuse an ounce of white horehound, Marrubium vulgare, in a pint of boiling water. Horehound, Wild. A plant of the genus Eupatorium. HORIZONTAL. Parallel to the hori- zon ; on a level. HORMINUM. See Salvia Sclarea. HORN. Cornu. An animal substance, consisting chiefly of a modification of pro- tein. The gelatine of horny tissues comes from their fibrous basis. HORN'BLENDE. A common mineral, occurring massive or in prismatic crystals, of HOW 337 HUM various colors, from white, through green shades to black. It is a silicate of lime, magnesia, or iron. It is sometimes used in the manufacture of porcelain teeth, for shading the body or enamel. HORN LEAD. Chloride of lead. Horn Pock. A form of variola, in which the pimples, imperfectly suppurating, are ichorous or horny, and semi-transparent. Horn Quicksilver. Native protochloride of mercury, Horn Silver. Native chloride of silver. HOR'RIUA CUTIS. Cu'tis anseri'na. Goose-skin. HOR'RIDUS. Hor'ror; a quaking, shivering with cold. Applied to a fever, &c. HORRIPILATION. Horripila'tio ; from liorrere, to bristle up, and pilus, a hair. A shuddering, chilling, or creeping sensation, with bristling of the hairs over the body, preceding fever. HORSERADISH. Armoracia. A plant of the genus Cochlearia, having a root of a pungent taste. It is stimulant, diuretic, and diaphoretic. Dose, 9j to 3j. Horse-tail. See Hippuris Vulgaris. HOR ! US. Vulva. Hortus Siccus. A collection of dried plants ; an herbarium. HOSPITAL. From hospes, a guest. An establishment for the reception and medical treatment of the sick. Hospital Fever. Febris nosocomialis. A fever peculiar to the inmates of a hospital, from their condition and circumstances. Hospital Gangrene. A peculiar form of gangrene, occurring in hospitals, in which the air, by the accumulation of patients, or want of proper ventilation, has become vitiated. HOUND'S TONGUE. A plant of the genus Cynoglossum. HOUR-GLASS CONTRACTION. An irregular contraction of the transverse fibres of the uterus, causing it to assume the shape of an hour-glass. When it occurs previously to the removal of the placenta, this is often retained for some time in the upper portion of the organ. HOUSE-LEEK. A plant of the genus Sempervivum. HO WARD'S HYDROSUBLIMATE. Jewell's calomel, prepared by exposing the salt in the act of sublimation to aqueous vapor, and receiving it in water. HUCKLE BONE. Ischium. HUMAN TEETH, CUSTOMS CON- CERNING. Apart from the importance attached to the teeth, some very curious and singular customs connected with these organs, have obtained among many of the nations of the earth. The Brahmins of Hindostan rub their teeth for more than an hour with a twig from the racemiferous fig- tree, immediately after rising every morning, addressing their prayers, at the same time, to the sun, invoking blessings upon themselves and families. They also separate their teeth as soon as the second set is formed. The inhabitants of Tonquin and Siam dye their teeth black, as do, also, the females of the Marian Islands, and the unmarried ladies of Java. Many of the women of Sumatra have their teeth filed off to the gums; others have them filed to points, or the enamel filed off, in order to dye them black, which is regarded as very ornamental. The great men of these islands color their upper teeth black, and incase their lower ones with gold, creating a contrast which is regarded as particularly beautiful by candle- light. The inhabitants of some of the other East Indian islands gild their two front teeth, and dye the others black. The natives of Malacca cut horizontal grooves across their upper incisors, and the Abyssinian negroes file their teeth to points, giving them a notched or serrated appear- ance. The inhabitants of Prince William's Sound, says Mr. Murphy, make an incision in the upper lip, parallel with the mouth, and when the sides of the wound have healed, they insert a shell, carved in such a manner as to resemble teeth. The natives of the Sandwich Islands, in order to propitiate their god Eatooa, offer up to him their front teeth. HUM'BOLDTINE. A native oxalate of the protoxide of iron. HUM'BOLDTITE. Oxalate of lime calculus. HUMEC'TANT. Humec'tans. A term applied in Therapeutics to remedies which are supposed to increase the fluidity of the blood, and remove the acrid condition of an organ. In surgery, the substance for re- taining moisture in a water dressing. The best humectant is spunk, Amadou, prepared 22 HUM 338 HUN without saltpetre or gunpowder. See Water Dressing. HUMECTA'TION From humedare, to moisten. An operation by which parts are kept moist, or for retaining moisture. HU / MERAL. Humera'lis. Pertaining to the humerus or arm. Humeral Artery. The brachial artery. HU'MERUS. From w/zoc, the shoulder. The upper part of the arm and shoulder. Also, the bone of the arm, os humeri, which is of a cylindrical shape, and situated be- tween the scapula and forearm. HUME'S TEST. A test for Arsenious acid, consisting of the am monio nitrate of silver. If solutions of these substances be mixed, a yellow arsenite of silver is precipi- tated, and nitrate of ammonia remains in solution. HU'MIC ACID. An acid formed from humus by alkalies. HUMIFU / SUS From humus, the ground, and /undo, I pour or spread out. Procum- bent. A term applied in Botany to plants which spread out over the surface of the ground HU / MILIS. The rectus inferior oculi. HU / MIN. A dark substance insoluble in alkalies, obtained from the soil. HUMIRIA'CEiE. A natural order of arborescent Exogens inhabiting Brazil. HUMIR'IUM. A genus of plants of the order Humiriacece. Humirium Floribun'dum. The shrub from which the balsam of Diniri is obtained. It has properties similar to Copaiva and balsam of Tolu. HU / MITE. A red Vesuvian mineral, occurring in complex crystals, and so named in honor of Sir David Hume, in whose collection it was found. HU'MOR. From humeo, to be moist. Any fluid of the body. Humor, Aqueous. A thin transparent fluid, which fills the two chambers of the eye. Humor, Vitreous. The vitreous humor of the eye. HUMORAL PATHOLOGY. That theory which attributes all diseases to dis- ordered states of the fluids. HUMORIC. The sound produced by percussion on the stomach, when distended with fluid or air. HUMORISTS. Those who attribute all diseases to a disordered condition of the fluids of the body. HUMOUR. Humor. HUMP BACK. Protuberance of the back, occasioned by curvature of the spine. HU / MULIN. The narcotic principle of the Hamulus lupulus. HAMULUS LUPULUS. The hop plant. See Lupulin. HU / MUS. Vegetable mould, decayed woody fibre. HUNCH. Hump. HUNGER. Fames. A desire for food, or want of it. HUNGARIAN BALAAM. The resin- ous juice of the Pinus pumilio. HUNGARY WATER. A stimulating spirit, perfumed principally with rosemary and lavender. HUNTER'S SILICIOUS CEMENT. A fusible silicious cement, introduced to the notice of the dental profession by Dr. W. M. Hunter, for uniting single porcelain teeth to a gold or platina base, and to each other. It consists of a base and gum enamel. The former is composed of flux,* 1 oz.; pure, finely ground asbestos, 2 oz. ; to these after being ground together until very fine, is added granulated body, f 1£ oz. The whole is then mixed with a spatula to prevent breaking the granules. Three formulae are given by Dr. Hunter, for gum enamel, prepared as follows: No. * The flux is composed of silex, 8 oz.; cal- cined borax, 4 oz.; caustic potash, 1 oz. The caustic potash is ground very fine, in a wedge- wood mortar, and the two former gradually added until they are thoroughly incorporated. The mass is then placed in a Hessian crucible, as white as can be obtained, previously lined with kaolin, and with which a cover of fine clay slab should be luted on. The crucible is now exposed to a clear, strong fire in a furnace until the mixture is fused into a transparent glass, which should be free from stain or discoloration. This, when cold, is broken down and ground un- til it will pass through a bolting cloth sieve, when it is ready for use. | For granulated body, break and grind fine china or wedgewood ware until it will pass through a wire sieve No. 50, then sift the fine particles with a No. 10 bolting sieve. This will leave the grains about the size of the finest gunpowder. Any hard porcelain with body will answer as well. HYA 339 HYD 1. Flux, 1 oz.; fused spar of the clearest quality, 1 oz.; English rose, 40 grs. Grind the rose in a wedgewood mortar very fine, add the flux gradually, and then the spar; continue to grind until the ingredients are thoroughly i ncorporated. Cut down a Hessian crucible until it can be put in the muffle of a furnace ; line with a mixture of equal parts of silver and kaolin ; put in the ma- terials, and raise the heat on it until vitrifi- cation, not fusion, takes place, then with- draw the muffle. A red cake of enamel, easily removed from the crucible, will be the result. This, after removing auy adhering portions of the silex and kaolin, is broken, and ground tolerably fine. If, on testing, the color is found to be too deep, it may be reduced by the addition of a little covering.* The gum enamel from this formula flows at the lowest heat. For gum enamel No. 2. take, flux, 1 oz. ; fused spar, 2 oz.; English rose, 60 grs. For No. 3, take, flux, 1 oz. ; fused spar, 3 oz.; English rose 80 grs. Treat as above. For manner of using this cement, see Harris's Dental Surgery. HURA BRASILIEN'SIS. A Brazilian tree of the family Euphorbiacece. It has been used as an anthelmintic and against leprosy and elephantiasis. HUSK. Glume; calyx. HUX'HAM'S TINCTURE OF BARK. Same as Tinct. Cinchonae Composita ; which see. HYACINTH. A mineral of various colors, occurring in crystals, and found in Zircon. \ HYACINTH'INE. A transparent and doubly refractive brown or greenish min- eral, occurring in eight-sided prisms. HYACIN'THUS. A genus of plants of the order Liliacece. Hyacinthds Botryoi'des. Grape-hya- cinth. Hyacinthus Como / sus. Purple grape hyacinth. Hyacinthus Muscari. Musk grape flower, said to be emetic and diuretic. Hyacinthus Orienta / lis. Garden hya- cinth. * This is made by mixing two parts white- quartz sand with one part plaster of Paris, with sufficient water to make the mass plastic, and must be used before the plaster sets. Hyacinthus Racemo / sus. Hare-bell hya- cinth. HYALEUS. Hyaline. HYALI'TIS. Inflammation of the hya- loid membrane of the eye. HYALINE. From vakoc, glass. The pellucid substance which determines the spontaneous fission of cells. Glassy. Re- sembling glass. HYALO. Vitreous, in composition. HYALODEC'CRYSIS. Escape of part of the vitreous body or humor. HYALOID. Hyaloi'des; from vakoc, glass, and sidog, likeness. Resembling glass. Transparent. Hyaloid Canal. See Hyaloid Mem- brane. Hyaloid Fossa. The depression in the vitreous humor, in which the crystalline lens or humor is partially imbedded. Hyaloid Membrane. The membrane which forms the covering of the vitreous humor, and transmits within it prolonga- tions, which divide it into cells. On a level with the entrance of the optic nerve into the eye, the hyaloid membrane forms by re- flection, a cylindrical, which pierces the vit- reous humor, as far as the posterior part of the crystalline. HYBER'NACLE. See Hibernacle. HYBERNATION. See Hibernation. HYBOMA. Gibbosity of the spine. HYBRID. Hybrida; from v(3pic, an in- jury, because its nature is tainted. In Physiology, the offspring of two different animals, as the mule, or of plants of a dif- ferent species. In Philology, words com- pounded of different languages. HYDAR'THRUS. Properly, Hydrar- thus. Hydarihro' 'sis ; from vdwp, water, and ap&pov, a joint. Hydrops articidorum. Dropsy of a joint. White swelling. HY / DATID. Eydatis; from vdop, water. An encysted tumor, containing a transpa- rent watery fluid. Also, a genus of intes- tinal worms, characterized by a body wholly or posteriorly vesicular.' - 1. Hyda- tis acephalocystis, the headless hydatid, or bladder- worm ; 2. Hydatis ccenurvs, con- taining several animals grouped together and terminating in one tail ; 3. Hydatis cysiicercus, the bladder-tailed hydatid ; 4» Hydatis ditrachyceros, furnished with a rough bifurcated horn ; 5. Hydatis echino- HYD 340 HYD coccus, the round rough hydatid: 6. Hyda- tis polycephalus. the many-headed hydatid; 7. A white encysted body named by Raspail, the oruliger of the joint of the wrist, is added to the forego* ng. though considered by the discoverer as belonging to a grenus intermediate between the cysticercus and the cxiiuriis. HYDATIDOCE'LE. Hydatoee'le; from vSanc, a hydatid, and : " . a tumor. A tumor formed of. or containing hydatids. HY 'D ATO ID. Hydatoi'des ; from vcup, water, and eidocj resemblance. Watery ;. rr;r:::': ':\\z ^a:er. HY'DERUS. Anasarca. Dropsy. HYD 'NUM. A genus of fungi, some of which are edible. Htdxum Coralloi'des. The common coral fungus. There are also several other species. Hybsum Erixa'ceum. Hedgehog mush- room. HY'DRA. From vdup t water. The fresh water polypus. HYDBr. HYDRO-. From vc up , water. A prefix denoting the presence of water or ;en. HYDB ACIDS. In Che istry, acids which consist of an element or compound ■combined with hydrogen. Even the oxacids have been classified under this head by as- suming that their basis is a compound radi- cal united with hydrogen. Thus sulphuric acid, commonly united S0 3 HO, may be ex- ri by the formula S0 4 H. HY'DR AGO GEES. Hydragoga; from w6up, water, and oyiu, I expel. Medicines which increase the ~r:retions or excretious, so as to cause the removal of effused serum, or water, from any part of the body. HYDRA1PNIOS. A morbid accumu- lation of the liquor amnii. HYDRARGO-CHLORIDS. Haloid salts in which the part of the halogen is taken by corrosive sublimate. ' HYDRAR'GYR AX ATRIP 'SIS. Rub- bing in a preparation of mercury. HYDRAR'GYRATUS. Ot; or belong- ing to. mercury. HYDRAR'GYRI ACETA& Acetate of mercury. Hydrargtbi Ammo'xio-Chlo'ridum. Ph. L. Amnio nio-chlo ride of mere : Htdrargtrt Bichlo'ridi Liquor. Ph. L. A solution of corrosive sublimate. Htdrargtri Bichlor'idum. Bichloride of mercury. Htdrargtri Bictaxi'dum. Bicyanide of mercury. Htdrargtri Bixiodi'dum. Biniodide of mercury. Htdrargtri Bixox'id or. Ph.L. Oxide of mercury. Htdrargtri Bisulphure'tum. Bisul- phuret of mercury. Cinnabar. Hturargyri Borus'sias. Mydrmrgyri cyanuretum. Bicyanide of mercury. Htdrargtri Bromidum. Bromide of , mercury. Htdrargtri Calx Ai/ba. See Hy- drargyrum ammoniatum. Htdrargtri Chlo'ridum Mi'te. Ph. L. Chloride of Mercury. Protochloride or subchloride of mercury. Calomel. Antisy- philitic. alterative, and purgative. Dose gr. j to ij. ni^ht and morning in a pill: as a purge, gr. iij to x. Hydrargtki Chloridum Corro'sivum* U. S. Corrosive chloride of mercury. Bi- chloride of mercury. Corrosive sublimate. Stimulant, autisyphilitic, and alterative. Dose. gr. ^ to £, made into a pill. Also used externally for veuereal and skin dis Antidote, white of egg.- Htdrargtri Ctaxuret'um. U. S. Bi- cyanide, cyanuret. or prussiate of mercury. Htdrargtri Decto-Iodidum. Iodide of mercury. Htdrargtri Htperox'idum. See Hy- draroryri oxidum rubrum. Hydrargtri Iodidum. Ph. U. S. and L. Subiodide of mercury. Protoiodide of mer- cury. Excitant and alterative. Dose, gr. £ to gr. ij, in pill or dissolved in alcohol. Htdrargtri Iodidum Ru'brum. U. S. Red iodide of mercury. Htdrargtri Mc'rias Corro'sivus. Cor- rosive sublimate. Htdrargtri Murias Dut/cis. Calomel. Htdrargtri Xi'tras. Nitrate of mer- cury. Htdrargtri Xi'trico-Ox'idum. Nitric oxide of mercury. Htdrargtri Oxidum Nigrum. U. 5. Black oxide of mercury. Dose. gr. £ to h. Htdrargtri Oxidum Rubrum. U. S. HYD 3il HYD Red precipitate of mercury. Nitric oxide of mercury. Hydrargyri Oxidum Sulphuricum. See Hydrargyri Sulphas Flavus. Hydrargyri Oxymu / rias. Corrosive sublimate. Hydrargyri Prussias. See Hydrargyri cyanuretum. Hydrargyri Submu'rias. Calomel. Hydrargyri Submurias Ammoniatum. See Hydrargyrum Ammoniatum. Hydrargyri Sulphas Fla / vus. U. S. Yellow sulphate of mercury. Subsulphate of mercury. Sulphate of mercury. Turpeth mineral. Hydrargyri Sulphure'tum Nigrum. U. S. Black sulphuret of mercury. iEthiop's mineral. Dose, gr. v to gss. Hydrargyri Sulphuretum Ru'brum. U. S. Red sulphuret of mercury. Bisul- phuret of mercury. Cinnabar. Hydrargyri Supermurias. See Hy- drargyri Chloridum Corrosivum. Hydrargyri Unguentum. See Unguen- tum Hydrargyri. HYDRARGYRIA. Eczema mercuriale. Mercurial eczema, or eczema resulting from the use of mercury. HYDRARGYRFASIS. Poisoning by mercury. HYDRARGYRO-IODIDES. Com- pounds of iodide or cyanide of mercury with corresponding salts of potassium, sodium, &c. HYDRARGYRO-STOMATFTIS. Mer- curial sore mouth. HYDRARGYRUM. From vdup, water, and apyvpoe, silver. Quicksilver. Mercury. A liquid metal of a brilliant, bluish-white color. Hydrargyrum Aceta'tum. See Hy- drargyri Acetas. Hydrargyrum Ammoniatum. Am- moniated mercury. Hydrargyrum Boruss'icum. See Hy- drargyri Cyanuretum. Hydrargyrum Calcina'tum. See Hy- drargyri Binoxidum. Hydrargyrum cum Crf/ta. Ph. U. S., L., E., and D. Mercury with chalk. Dose, gr. v to gss. Hydrargyrum cum Magne'sta. Ph. D. Mercury with carbonate of magnesia. Hydrargyrum Hydrocyanicum. See Hydrargyri Cyanuretum. Hydrargyrum Muriat'icum. Chloride of mercury. Protochloride of mercury. Calomel. Hydrargyrum Phosphora'tum. Phos- phuretted mercury. Hydrargyrum Pr^ecipita'tum. See Hydrargyrum Ammoniatum. Hydrargyrum Pr^oipita'tum Cine'- reum. See Hydrargyrum Oxidum Nigrum. Hydrargyrum Purifica / tum. Purified mercury. Hydrargyrum Sacchara / tum. Mer- cury triturated with lump sugar. Hydrargyrum Vitriola'tum. See Hy- drargyri Sulphas Flavus. HYDRARGYRUS. Hydrargyrum. Mer- cury. HYDRARTHROSIS. The morbid dia- thesis indicated by the occurrence of hydrar- thrus. HYDRAR'THRUS. The disease white swelling; sometimes called Spina Ventosa. HYDRASTIS CANADENSIS. Yel- low root. Turmeric root. Golden seal ; a perennial herb, having an acrid, bitter taste, and employed by the Indians as an applica- tion to old ulcers. The juice of the root is used as a dye. HY / DRATE. A compound containing water in a fixed and definite proportion; a substance which has formed so intimate a union with water as to solidify it. Hydrate of Potassa. Caustic potash. HY'DRATED. Chemically combined with water. HYDRAULICS. From vdop, water, and avloc, a pipe. The science of the mo- tions of liquids, the laws which regulate them, and the effects which they produce. HYDRENCEPHALOCE'LE. From vdwp, and eyKetyaAog, the brain, and Krjlrj, a tumor. A watery tumor of the brain. HYDRENCEPH'ALOID. From vdap, water, eynefaAoc, the brain, and eidog, resem- blance. Resemblinghydrocephalus. Spuri- ous hydrocephalus, resulting from diseases of the bowels and the irritation of teething. HYDRENCEPH'ALUS. Acute hydro- cephalus. HYDRENTEROCE'LE. From vdap, water, evrepov, intestine, and k^, a tumor. HYD 342 HYD Intestinal hernia with an inclosure of water in the sac. HYDRIDE. A compound of hydrogen with another simple body, especially metal. HYD RENTE ROMP HALOCE'LE. Um- bilical hernia, in which the tumor contains intestine and water. HYD RFO DATE. The old name for iodide. HYDRIOD'IC ACID. A colorless, gas- eous acid, consisting of one atom of iodine and one of hydrogen. HYDRCKA. From vdop, water. A pus- tule containing a serous or watery fluid. HYDRO^ ; MIA. Hydremia. From vdap, water, and ai/ua, blood. A state of the blood in which there is an excess of its watery constituents. HYDROA'RION. From vdop, water, and uaptov, ovarium. Dropsy of the ova- rium. HYDROAZOCARBYLS. A class of Lowig's system, comprising those organic radicals which contain carbon, hydrogen, and nitrogen. HYDRO BRO'M ATE. A combination of hydrobromic acid with a base. HYDRO BRO MaC. A combination of hydrogen and bromine. Applied to an acid. HYDROBLEPH'ARON. From vdap, water, and filefyapov, eyelid. Watery swell- ing of the evelids. HYDROCjE'LIAS. Ascites. HYDROCARBONS. Organic com- pounds of hydrogen and carbon. The mean- ing of this term is often extended so as to embrace the combinations of these elements, carbon and hydrogen, with oxygen. HYDROCAR'BU RET. A combination of hvdrogen and carbon with another body. HY DROC AR'DIA. Dropsy of the peri- cardium. HYDROCELE. From vdup, water, and ktiAt}, a tumor. A collection of serous fluid either in the membrane of the scrotum, or in the coats of the testicle and its vessels. Hydrocele Cysta'ta. Encysted hy- drocele of the spermatic chord. Hydrocele of the Neck. A tumor filled with a watery fluid, occupying some portion of the neck. Hydrocele Peritox-e'i. Dropsy of the abdomen. Hydrocele Spinalis. Hydrorachis. HYDROCENO'SIS. Evacuation of morbid accumulations of water. HYDROCEPHALUS. From vdup, water, and Keoa'Arj, the head. Dropsy of the brain. Dropsy of the head. It is dis- tinguished into acute and chronic ; external and internal. When acute, it is attended by symptoms of inflammation of the brain. Chronic hydroeephalusgenerally commences at an early period of life, causes a distension of the brain and bones of the cranium, and generally proves fatal. When external, it consists in a mere infiltration of the sub- cutaneous cellular tissue. The internal variety is said to be seated in the meninges and surface of the encephalon, and is termed tubercular meningitis. Hydrocephalus Spu'rius. Hydren- cephalous disease. HYDROCHLO'RATES. The old name for chlorides. HYDROCHLORIC ACID. Muriatic acid. An acid composed of one atom of chlorine and one of hvdrogen. HYDROCHLO'RIXE. A compound of hydrogen and chlorine. HYDROCH'YSES. A class of diseases in Fuchs's classification, characterized by sudden effusion of water, as serous apo- plexy. • HYDROCIRSOCE'LE. A tumor caused by varicose veins aud oedema of the scro- tum. HYDROCOT'YLE CEXTEL'LA. A South African plant possessing astringent properties. HYDROCHLORIC ETHER. See Ether, Hvdrochloric. H YDROC YAX'IC ACID. Acidum hy- drocyanicum. Prussic acid; one of the most rapid and deadly poisons. It exists in a variety of native combinations in the vegetable kingdom, as in the bitter almond, cherry laurel, leaves of the peach tree, ker- nels of fruit, pips of apples, &c. Great caution is necessary in its use. One drop may instantly destroy life. Dose of the Medicinal Prussic Acid is a quarter of a drop, which may in some cases be increased to one or even two drops. HYDROCYS'TIS. From vfup, water, and Kvanc, a bladder. A cyst filled with a serous fluid. HYDRODYNAMICS. From vdup, and HYD 343 HYD dvva/uic. power, force. That branch of Phys- ical Science which treats of the properties and relations of water and other fluids, whether in motion or at rest. HYDRODER'MA. From vdop, water, and deppa, the skin. Dropsy of the skin. Anasarca. HYDRO-E NTE RO E PIPLOCE'LE. An entero-epiplocele, complicated with effu- sion of serous fluid in the hernial sac. Hydro-Epiplocele. Omental hernia with effusion of serous fluid in the hernial sac. Hydro-Epiplomph'alum. Umbilical her- nia, with effusion of serous fluid in the sac. HYDROFLUORIC ACID. A caustic, gaseous acid, obtained by the action of sul- phuric acid on fluoride of calcium. HYDROFLUOSILFCIC ACID. 3HF 2 SiF 3 +Si0 3 . Acid formed of hydrogen, fluorine, and silicon. It is soluble in water and is used in analytical chemistry, chiefly to determine the presence of baryta. HYDROGEN. Hydrogen' turn; from vdop, water, and yevvao, I produce. So called, because it forms water in combina- tion with oxygen. Inflammable air; an ele- mentary body, known only in a gaseous state, without odor or color. Hydrogen, Carburetted. Carburetted hydrogen. Hydrogen, Oxide of. Protoxide of hy- drogen. Water. Hydrogen, Phosphuretted. A com- pound of hydrogen and phosphorus ; a trans- parent colorless gas, of an offensive odor, and bitter taste. Hydrogen Sulphuretted. Hydrosul- phuric acid. HYDROGLOS'SA. Rannla. HYDROG'URET. Hydride. HYDROH^'MIA. TSop, water, and atpa, blood. A watery or impoverished state of the blood. HYDROHYMENFTIS. Inflammation of a serous membrane. HYDROLA'TA. Distilled water. HYDROLEA'CE^E. A small natural order of Monopetalous Exogens, chiefly in- habiting watery places in tropical climates. HY'DROLITE. From vdop, and li&oe, a stone. A mineral, the crystals of which re six-sided prisms, terminated by low six- sided pyramids, with truncated summits ; also, decoction, mucilage, potion. HYDRO I/OGY. Hydrolog'ia; from vdop, water, and loyoq, a discourse. A treatise on the properties and nature of water. HrDROMAN'CY. From vdop, and pavreia, prophecy. Divination by water, a method of predicting events practised by the ancient Persians and Romans. HYDROMAN'IA. From vdop, water, and pavia, mania. A propensity to drown one's self. HY'DROMEL. Hydrom'eli; from vdup, water, and pe?ii, honey. Water sweetened with honey. HYDROMETER. Hydrome'trum; from vdup, water, and perpov, a measure. An in- strument to determine the specific gravity of fluids. HYDROME'TRA. From vdop, water, and fiqrpa, the womb. Dropsy of the uterus. HYDROM'PHALUM. From vdop, water, and oy.(paloc, the navel. A tumor at the navel containing a serous fluid. HYDROMYRIN'GA. From vdop, wa- ter, and myringa or myrinx, the mernbrana tympani. Dropsv of the tympanum. HYDRONEPHROSIS. From vdop, water, and vepog, kidney. An accumula- tion of urine in the kidney, caused by ob- struction of the uriniferous tubes. HYDRON'OSOS. From idpoc, sweat, and voaog, a disease. Sudor anglicanus. Sweating sickness. HYDROPATHY. Hydropath' ia ; from vdop, water, and iratioc, disease. The treat- ment of disease by the external and inter- nal use of water. HY'DROPERICAR'DIUM. Hydroperi- car' dia ; from vdop, and Trepinapdiov, the pericardium. Dropsy of the pericardium. HYDROPHAL/LUS. Dropsy of the penis. HY'DROPHANE. From vdop, and (jxxcvo, I shine. A species of opal, opaque when dry, and transparent in water. HYDROPHIMO'SIS. (Edematous phi- mosis. HYDROPHOBIA. From vdop, water, (pofieo, to terrify. Literally, dread of water. Canine madness. That peculiar and horri- HYD 344 HYD ble disease consequent upon the bite of a rabid animal. HYDROPHTHAI/MIA. From vdup, and ovrov, a plant. A term applied in Botany to fresh-water plants. HYDROP'IC. Hydropicus; from vdpuip, the dropsy. One affected with dropsy. Relating to dropsy. HYDROP'ICA. Hydragognes. HYDROPLEURFTIS. Pleurisy at- tended with serous effusion. Acute hydro- thorax. HYDROPNEUMO'NIA. From vdap, water, and irvevpov, the lung. Serous in- filtration of the cellular tissue of the lungs. HYDROPNEUMOSAR'CA. Fromvdup, water, irvev/Lia, wiud, and aap^ flesh. An abscess containing air, liquid, and flesh, or generally extravasated blood. HYDRO'PNEUMO'THO'RAX. From vdup, water, irvevytov, the lung, and -&iopa^, the chest. Pneumothorax, complicated with serous effusion into the chest. HY / DROPS. From vdup, water. Dropsy. Hydrops Abdominis. Ascites. Hydrops Articulo'rtjm. Hydrarthrus. Hydrops Cap / itis. Hydrocephalus. Hydrops Cer / ebri. Acute hydroceph- alus. Hydrops Cysticus. A collection of se- rous fluid in a cyst or sac. Hydrops Genu. Dropsy of the knee. Hydrops Glotti'dis. (Edema of the glottis. Hydrops Ocult. Hydr ophthalmia. Hydrops Ovarii. Dropsy of the ovarium. Hydrops Palpebr^e. Hydroblepharon. Hydrops Pectoris. Hydrothorax. Hydrops Pericardii. Hydropericar- dium. Hydrops Pul'monum. Hydropneumo- nia. Hydrops Sacci Lachryma / lis. Fistula lachrymalis. Hydrops Sacco / rum Pleu'r^e. Hydro- thorax. Hydrops Tuba / lis. Serous accumula- tion in the Fallopian tube. HYDROPYR'ETOS. Sweating fever. HYDRORA'CHIS. From vdup, water, paxiq, the spine. Dropsy of the spine. HYDRO R'CHIS. Hydrocele. HYDRORRHCE'A. From vdap, water, and pew, I flow. Any chronic discharge of serous fluid. Also, Egyptian ophthalmia, with a profuse flow of tears. HYDROSALPINX. Dropsy of the Fallopian tube. HYDROSARCOCE'LE. From vrfwp, water, aap^, flesh, and /C///.77, a tumor. Sar- cocele, complicated with serous effusion of the tunica vaginalis. HYDROSCHEOCE'LE. Hydrocele. HYDROSTATICS. Hydrodat'ica; from voop, water, aud crannac, standing. That part of physics which treats of the weight and equilibrium of fluids. HYDROSTATIC BED. A bed or trough capable of holding water, and covered with water-proof cloth. Such a bed presses equally on every part of the lower surface of the body, and is always ready for use without being shaken up. HYDROSTATIC TEST. The putting the lungs of a dead child in water, to ascer- tain, by their floating or sinking, whether it has been born alive. HYDROSUL'PHATE. A salt from a combination of hydrosulphuric acid with a salifiable base. HYDROSULPHURIC ACID. Sulph- hydric Acid. A colorless gas containing one atom of sulphur and one of hydrogen. It precipitates most of the metals from their saline combinations HYDROTHO'RAX. From ixfep, water, HYG 345 HYM and dupatj, the chest. Dropsy of the chest. Effusion of serum in one or both of the cavi- ties of the pleura. HYDROT'ICA. Hydragogues. HYDRO'TIS. Dropsy of the ear. HY'DRURET. See Hydride. HYDRYLS. Organic radicals composed of several atoms of hydrogen. HYETOM'ETER. An instrument for ascertaining the quantity of rain falling in a given time. HYGIENE. From vyieia, health. That part of medicine which has for its object the preservation of health. Hygiene, Dentat,. That part of the den- tal branch of medicine which has for its object the preservation of the health of the teeth, and the parts with which they are im- mediately connected, and as the organism generally, from the period of birth, is sub- ject to hygienic influences, so, also, are the teeth, gums, and alveolar processes. But, as the health of one organ is dependent upon the manner in which all the rest perform their functions, it is impossible to lay down exact hygienic rules for the one, irrespective of the condition of the others. A system of hygiene, therefore, for one set or class of organs, to be complete, must of necessity, have reference to the health of all the other organs of the body. For example, the state of the general health during the ossification of the teeth, determines the physical con- dition of these organs, and as a consequence their susceptibility to morbid impressions; so also does it affect their condition after they are formed, as well as that of the parts with which they are connected. Still expe- rience has established certain enlightened rules for the care of the teeth which have been found efficacious in counteracting many of the morbid influences to which they are exposed. The particular care which they, when j well arranged and free from disease, require, I to secure their preservation, is none other, to use the language of Desirabode, than ! that which should " form the daily ' toilette ' i of the mouth," and this should consist in thoroughly cleaning the teeth three or four times every day with a suitable brush and waxed floss silk, as recommended by Dr. L. S. Parmly. The brush alone is not sufficient. The outer and inner surfaces of the teeth only can be kept clean by the brush, and for the removal of lodgments of alimentary substances from between them, where they are most likely to be productive of pernicious effects, floss-silk, hemp or flax is absolutely necessary. If stains or discolorations appear on the enamel, they should at once be removed by the use of some suitable tooth powder, or, what in many cases will be found more efficient and preferable, an argillaceous tooth polisher, as advised by Dr. L. S. Parmlv, or some other similar mechanical agent. HYGTEN'IC. Relating to hygiene. HYGRECHE'MA. From vypog, moist, and rjxv, a sound. The sound of fluid heard by means of the stethoscope, or by percus- sion. HYGRO-. From vypog, humid. A pre- fix denoting the presence of humidity. HYGROBLEPHAR'ICI. The excre- tory ducts of the lachrymal glands. HYGROC ATARACT'A. Soft cataract. HYGROI/OGY. Hygrolog'ia; from vypog, humid, and loyog, a discourse. A treatise on the fluids of the body. HYGRO'MA. From vypog, humid. A tumor containing serous or some other hu- mid matter, but not pus. Dropsy of the bursas mucosas. HYGROMETER. Hygrome'trum ; from vypog, humid, and perpov, a measure. An instrument for measuring the humidity of the atmosphere. HYGROM'ETRY. The art of measur- ing the dryness or humidity of the atmos- phere. HYGROPHOBIA. Hydrophobia. HYMEN". From vfinv, a membrane or pellicle. Also, the god of marriages. In Anatomy, a circular fold of mucous mem- brane which, partly, or wholly, closes the entrance of the vagina in virgins, and es- pecially before menstruation, though it is said to be sometimes wanting. In Botany, the fine pellicle which incloses a flower in the bud. HYMENiE'A. A genus of plants of the order Fabacece. Hymen^ea Courbaril. West Indian locust, the roots of which exude a resin known under the name of gum anime. HYME'NIUM. That part in which the HYO 346 HYP sporules lie in fungi, usually called gills in the genus Agaricus ; a spongy substance in the Boletus, presenting in other genera a variety of peculiar appearances. HYMEN O'DES. Membranous. Urine filled with pellicles. HYMENOL/OGY. Hymenolog'ia; from vprjv, a membrane, and /loyoc, a discourse. A treatise on the structure and functions of membranes. HY'MENOMALA'CIA. T W a mem- brane, and payaicoc, soft. Morbid softening of the serous membranes. HYMENOT'OMY. Hymenotom'ia ; from vjirjv, a membrane, and repvu, I cut The dissection of membranes. Also, the incision of the hymen. HY'O-BA'SIO-GLOS'SUS. The basio- glossus muscle. HY'O-CHON'DRO-GLOS'SUS. The hyo-glossus muscle HYO-EPIGLOT'TICUS. Belonging to the hyoides and epiglottis. Also, applied to the hyo-epiglottic ligament. HYO-GLOS'SUS. A thin, broad, quad- rilateral muscle, which has its origin from the body, cornu, and appendix of the os hy- oides, and is inserted into the side of the tongue, forming the greater part of its bulk. HYOFDES. From the Greek letter v, and etdog, likeness, because it resembles the letter upsilon. The os hyoides. Hyoides, Os. A movable bone, convex anteriorly, situated in the soft parts of the neck, between the root of the tongue and larynx. HYOSCYA'MIA. Hyoscyamin. An alkaloid obtained from Hyoscyamus niger. HYOSCY'AMUS. From vg, a swine, and Kva/iog, a bean ; so called because hogs eat it, or because the plant is hairy and bristly like a hog. A genus of plants of the order Solanacece. Also, henbane. Hyoscyamus Albus. White henbane. Hyoscyamus Luteus. See Nicotiana Rustica. Hyoscyamus Niger. Black henbane. Hyoscyamus; a valuable sedative and nar- cotic. Also anodyne, antispasmodic, and slightly stimulant. Dose of powder, gr. iij to x, but the extract is generally used, the dose of which is gr. ij. HYO-THYROIDE'US. The thyrohy- oid muscle. HYPiE'MIA. Deficiency or extravasa- tion of blood. HYPAI/GIA. Hyp, and alyog, pain. Slight pain. HYPATMIS'MUS. Hypatmus. Fumi- gation. HYPER. TTrep. Above. A Greek prep- osition, used as a prefix to denote excess. HYPERACU'SIS. From wrep, above, and atcovoig, hearing. Morbid sensibility of the organ of hearing. HYPERADEx^CKSIS. Hypertrophy of a gland. HYPEREMIA. From wrep, above, and ai/ua, blood. Sanguineous congestion. Local plethora. HYPER^ESTHE'SIS. From vrrep, above, and aia^avopat, to feel. Preternatu- ral, or morbid increase of sensibility. HYPERAPH'IA. From wrep, in excess, and a, I see. The image of an object in the mind. IDEOLOGY. Ideaolog'ia; from tdea, a thought, and loyog, a discourse. A treatise on, or the doctrines of, ideas ; the science of mind ; intellectual philosophy. IDIOELEC'TRIC. Containing electric- ity, or rather possessing the power of accu- mulating it upon the surface; applied to bodies like glass, amber, &c, which exhibit electric properties when rubbed. IDIOPATHIC. Idiopath'ia; from id toe f peculiar, and 7ra#oc, an affection. A pri- mary disease ; one not dependent on any other. IDIOSYNCRASY. ldiosyncra'sia ; from tdiog, peculiar, aw, with, and ugaaig, a temperament. A constitution peculiarly susceptible to morbid impressions from certain agents, which would produce no effect on others of a different constitution. ID / IOT. Foolish; stupid; one who is destitute of reason. ID'IOTISM. Id'iocy. Amen'tia. A species of mental alienation. IDIOTRO'PHIA. Idiosyncrasy. ID'OCRASE. The volcanic garnet, which is of various colors, and sometimes called volcanic crysolite or hyacinth. IDRIA'UN. An organic oxide C 42 H u O, found in the roasted mercurial ore at idria. It crystallizes in small sooty scales. IDRYL. The basis of Idrialin, obtained in minute colorless leaflets. IGASU'RIC ACID. The acid combined with strychnia in nux vomica. IGNA'TIA AMA'RA. The plant which yields St. Ignatius's bean. IGNAVIA. Impotence. IG'NIS. Fire. The evolution of light and heat which results from combustion. Also, universal solvents, and the heat, red- ness, and acrimony of disease. Ignis Actua / lis. Actual cautery. Ignis Cai/idus. A hot fire. In Pa- thology, violent inflammation about termi- nating in gangrene. Ignis Columei/l^e. Erysipelas. Ignis Fat / uus. A luminous appearance sometimes seen at night over marshy grounds, produced by inflammable gases, especially the phosphuretted hydrogen. Ignis Frig'idus. Gangrene. Ignis Natura / lis. Animal heat. Ignis Persicus. Erysipelas. Also, anthrax. Ignis Rot^e. Fire for fusion. Ignis Sylvat'icus. Crusta lactea. Also transient redness on the face and neck of hysterical or chlorotic females. IGNFTION. From ignis, fire. The act of catching fire, or of being heated to redness. ILAPHIS. Burdock. See Arctium Lappa. ILE 352 ILL II/EAC PASSION. Passio iliaccu Colic seated in the ileum, and characterized by severe griping pain, vomiting of fascal matter, costiveness, and spasms of the ab- dominal muscles. See Ileus. ILEI'TIS. Inflammation of the ileum. ILEO . From ileum, the small intestine. Used as a prefix. Ileo-Coscal Valve. A valve at the junction of the ileum and coecum. Il.e.0 Cholosis. Bilious diarrhoea. Ileo-Colic Artery. The last branch from the concavity of the superior mesen- teric artery, distributed to the ileum, cce- cum, and commencement of the colon. Ileo-Coli'tis. Enteritis. Ileo-Diclidite. Typhus. Ileo-Lumbar Artery. A branch of the internal iliac artery, distributed to the psoas and iliacus muscles. ILEOSIS. Ileus. ILEUM. Ileon. From eu.eo, to turn about. The last portion of the small intes- tines which terminate at the valve of the caecum. ILEUS. A disease characterized by deep-seated pain in the abdomen, stercora- ceous vomiting, and obstinate constipation. It is occasioned by hernia or other obstruc- tion through a part of the intestinal canal. The term is also applied to nervous colic, intussusception, &c. Iliac Passion. ILEX. A genus of plants of the order Ilicece. Ilex Aquifo'lium. The European holly, the leaves of which have been used in catarrh, pleurisy, eruption, and intermittent fevers, and the berries are said to be ca- thartic. Ilex Major. The species which furnish the ballotas berries, the juice of which is slightly astringent. Ilex Opa / ca. American holly; a spe- cies possessing properties similar to the European. Ilex Paraguaiex'sis. A species which furnishes the Paraguay tea, a favorite beverage in South America. Ilex Vomito / ria. Cassina. The leaves are diuretic, and held in great esteem by the Southern Indians. They toast them and make a decoction called black drink, used only by the men. IL'IA. The flanks; also, the small in- testines. IL / IAC. Ili'acus ; from ilia, the flanks. Pertaining to. or connected with the flanks. Iliac Arteries. Arteries formed by the bifurcation of the aorta, and divided into external and internal. The external, after passing Poupart's ligament, is called the femoral artery. Iliac Crest. The superior margin of the ilium. Iliac Fossae. There are two, the inter- nal and external. The internal is a broad shallow cavity in the inner surface of the os iliacum ; the external is on the external surface. Iliac Mesoco'lox. A fold of the peri- toneum embracing the sigmoid flexure of the colon. Iliac Passion. See Ileac Passion. Iliac Region. The sides of the abdo- men between the hips and the ribs. Iliac Spines. The four spinous pro- cesses of the ilium. ILFACUS. Iliac. Iliacus Ixterxus. A broad, triangular radiated muscle situated on the inner sur- face of the ilium. IL'ICIX. A peculiar bitter principle obtained from Ilex aquilblium. ILIN'GOS. Vertigo. ILIO-. Words compounded with this term signify parts connected with the ilium, as ilio-abdominal, ilio-costal, ilio-sacral, ilio-lumbar, &c. ILIOX. Ilium. H/IUM. Ileum, Hion. The haunch bone. The largest of the three bones which form the os innominatum. ILLFCIUM. A genus of plants of the order Magnoliacew. Illicium Axisa'tum. The yellow-flow- ered aniseed tree. Illicium Florida'xum. Florida anise tree. Sweet laurel. Illicium Parviflo / rum. A shrub, the bark of which resembles that of the sassa- fras. ILLI'TIO. Anointing. ILLO'SIS. From u./.oc, the eye. Stra- bismus. ILLUTA'TIO. From in, upon, and hi- turn. mud. Illutation. The act of besmear- ing any part of the body with mud IMP 353 IMP ILMEN'IUM. One of the metals found in the minerals called tantalites and yttro- tantalii.es, recognized by Hermann in 1847. 1MBECIL / ITY. ImbeciVitas. Weak- ness, especially of intellect. IMBER'BIS. Without beard. IMBIBl'TION. Imbibitio; from imbi- bere, to drink, to imbibe. Endosmosis The absorption of a liquid by a solid. The action by which a body becomes penetrated by a liquid. Imbibition, Double. Endosmose. IMBREX NARIUM. Septum narium. IM'BRICATE. Imbrica'tus. Imbri- cated 5 arranged like tiles on the roof of a house ; a term applied in Botany to the bractge of plants, when they overlap each other. IMMER'SUS. Immersed; plunged un- der water. A term applied in Anatomy to the subscapularis muscle. IMMISCIBLE. Incapable of being mixed, as oil and water. IMMOBILITY. Immobilitas; from im- mobilis, immovable ; fixed. A term ap- plied in Pathology to parts which naturally admit of motion, but are, from disease or other causes, rendered immovable. See Jaw, Lower, Immobility of. IMMOVABLE APPARATUS. An ap- paratus used in fractures and dislocations, consisting of bandages or supporters, im- bued with starch or gum, which after being applied becomes solid. IMPACTED. Impingo, impaetum; to drive in. Used in Obstetrics, with reference to the head of the child when fixed in the pelvic cavity. IMPACTION". Impac'tio. A fracture with projections and depressions of frag- ments of bone. IMPALPABLE. From in, and palpo, to feel. A term generally applied to hard substances reduced to so fine a powder that their particles cannot be distinguished by the sense of touch. Powders for the teeth should usually be of this character. IMPA'TIENS. A genus of plants of the order Balsaminacece. Impatiens Balsa mi'na. Impatiens noli- metangere, balsam weed. Touch-me-not. IMPENETRABILITY. A property possessed by bodies of excluding from the space which they occupy all other bodies^ IMPERATO'RIA. A genus of plants of the order Umbelliferce. Imperato / kia Ostru'thium. Master- wort. The root is slightly aromatic, and has a bitterish, pungent taste. IMPERFECT. In Botany, flowers with- out anther or pistil, or both. IMPERFORA'TION. Imperfora'tio. In Anatomy, a malformation, consisting in the absence of the natural opening or orifice of an organ, as of the mouth, anus, &c. IMPERMEABLE. Impermeab'ilis. Capable of resisting the passage of fluids and gases. IMPETIG'INES. The plural of impe- tigo. IMPETPGO. From impetire, to infest. A word which has received several signifi- cations, but at present principally used to designate a genus of cutaneous diseases, be- longing to the order Pustulai, of Bateman. In Cullen it forms a genus in the class Ca- chexias, and Sauvages employs it as a generic term, comprising under it, syphilis, scorbu- tus, rachitis, elephantiasis, lepra, scabies, tinea, scrofula, &c. The humid or running tetter, of which five species are enumerated i 1. Impetigo Jigurata. 2. Impetigo sparsa. 3. Impetigo erysipelatodes. 4. Impetig® scabida. 5. Impetigo rodens. IM'PETUM FA'CIENS. Vital energy. IM / PETUS. Force. The momentum of a moving body. In Pathology, the paroxysm of a disease. IMPLANTATION. The act of plant- ings setting, or fixing, for the purpose of growth ' T applied sometimes to the transplan tation of a tooth from the mouth of one person into a recently vacated socket in the mouth of another. IMPLICATED, lmplica'tus. A term applied by Celsus, Scribonius, and others, to- those parts of physic which have a neces- sary dependence on one another ; and by Bellini, to fevers,, when two attack a person at a time, whether of the same kind, as a double tertian, or of different kinds, as a tertian and quotidian, called a semitertian. IMPLU'VIUM. An embrocation. Also, a shower bath. IMPONDERABLE. From in, not, and pondus, weight. Substances which produce no effect on the most delicate balance, as light, heat, and the electric fluids 23 IMP 354 IMP IMPOSTHUME. Imposthu'ma. An abscess. IM'POTENCE. Weakness; loss of en- ergy, but generally applied to a want of sexual vigor; also, used synonymously with sterility. IMPOVERISHED. Having become poor. In Humoral Pathology, thinness of the blood or any secretion from loss of some of its constituents. The blood, when pale and thin, is said to be impoverished. IMPREGNATION. Fecundation. IMPRESSION. Impres'sio. A terra applied in Anatomy and Zoology to .the in- dentation made in one organ by the contact or attachment of another; in Dental Surgery, to the figure of certain parts of the mouth, obtained in wax or a paste of plaster of Paris, with a view to the application of ar- tificial teeth or some other mechanical con- trivance. Impression* of the Mouth in Plaster of Paris. For the purpose of obviating the difficulty sometimes experienced in the pro- curement of a perfectly accurate transfer of the alveolar border, from an impression in wax, plaster has been substituted. Drs. Westcott and Dunning, it is believed, were the first to employ the latter. The follow- ing is the manner of obtaining an impres- siou in it. The plaster is mixed with water until a thick batter is formed ; this is poured into an impressiou cup, with high walls fit- fciug loosely over the alveolar border, the pos- terior or open extremities being previously ■closed with wax softened by the fire, or in hot water. The instant the plaster begins to congeal it is put into the mouth and pressed carefully agaiust the alveolar border until a sufficiently deep impression is made. This done, it is permitted to remain in the mouth two or three miuutes, or long enough for the plaster to harden, before it is removed; and in doing this, great care is necessary to pre- vent cracking or injuring the impression. Should it adhere with great tenacity to the mouth, one side is first slightly detached, and then the other, and if it cannot be readily loosened at one point, another and another should be tried until it is made to yield, when the whole may be easily removed, the edges trimmed, and after it has become dry, and before being used, it should be painted with oil or varnished. By a method proposed by Prof. Austen very accurate impressions of special full cases, and for all partial cases, can be ob- tained. His method is as follows : Take a wax impression, and make a model ; in par- tial cases, brush over the teeth of the model one or two layers of thin plaster, to fill up all undercuts, and to make the plate fit loosely. Saturate the model with water, and mould over it a gutta-percha cup ; it should be, on the inside, from one-fourth to one- half an inch thick, so as to be stiff and un- yieldiug. The whole inside of the cup must be roughened up with a scaler or excavator in such a way that the plaster can take firm hold. In most partial cases the impression parts between the teeth coming away sep- arately. In very difficult cases, it is neces- sary to partially cut through the cup so as to permit its removal in sections with the plaster adherent These cups have no han- dle, but are removed by inserting a plugging instrument into a small hole previously made in the back part of the cup where it is thickest. Accurate and reliable impressions can also be taken by means of an impression cup for each case, struck up with dies prepared from a wax impression of the case. The following is the method of Dr. J. B Bean, by which he proposes to overcome the ten- dency of the thin film of plaster and the frail edges of the impression to break away in taking it from the mouth. A wax im- pression is procured, from which a set of dies are made, and a plate of thin brass swaged so as to approximate a fit, and be easily removed from the mouth. The edges of this impression cup are trimmed so as to allow the muscles to assume their proper position ; a handle is made by soldering a piece of stout brass wire across the plate, from one ridge to the other. This plate is now warmed over a spirit-lamp, and coated on the inner surface, and edgos with gum shellac, by rubbing a stick of this material over it while hot. While the shellac is still in a fused condition, the plate is quickly transferred to a handful of raw cottou. which is wrapped about it. and held against the melted shellac until it is cool. The super- fluous cotton is now removed, and the cup 1NA 355 INC is ready for an impression. Very little plaster is necessary, and success is more certain, and the impression is more perfect and reliable than with an ordinary cup. Moreover, the impression is very easily removed from the cast by first warming and removing the cup. Impression of the Mouth in Wax. The manner of procuring a wax impression is as follows : Fill an impression cup with white or yellow wax, previously softened in warm water, or by a fire, until it is of the consist- ence of dough or soft putty, then put it in the mouth with the wax facing the jaw from which a transfer is to be obtained, and press it carefully against it until a sufficiently deep indentation is made, or until the entire al- veolar ridge and remaining teeth are imbed- ded in it The impression cup is held steadily in one hand, and the pressure applied equally with the other to every part of it. This done, the wax around the edges should be care- fully pressed against the gum, and when ap- plied to the upper jaw, to the roof of the mouth. The whole should now be removed, and in doing this, considerable care is neces- sary to prevent the shape of the impression from being altered by the corners of the mouth and teeth. Impression Cup. A metallic or porce- lain cup which contains the material used for taking impressions of the mouth, and by which such material is introduced into the mouth. IMPU / BER. Impu'Ms; from in, not, and pubertas, puberty. Not of the age of puberty. IMPULSE, DIASTOLIC. Back-stroke of the heart. The short stroke felt at the end of each pulsation. FMUS VENTER. The lowest part of the abdomen, between the umbilicus and pudenda. INANAGENESIS. From ic, ivoc, a fibre, and anagenesis, regeneration. Mus- cular regeneration, or reproduction of mus- cular fibre. INANITION. InaniVio ; from inanire, to empty. Exhaustion from want of food. Emptiness. INAPPETEN'TIA. Anorexia. Dyso- rexia. INARTICULATE. Having no articu- lation. Also, not having distinct utterance. INAURA'TTON. The gilding of pills or boluses with gold. INCANDESCENCE. The bright light emitted bv heated bodies. INCANTATION, lncanta'tio; from in, and caidare, to sing. The cure of dis- ease by charms. INCARCERATION. Incarcera'tio; from in, and career, prison. A term ap- plied to hernia when the neck of the sac is so constricted as to prevent its easy reduc- tion. INCAR'NAN. A medicine which was supposed to promote the formation of flesh. INCARNATION. From in, and caro, flesh. Granulating; filling up with flesh. INCEN'DIUM. From incendere, to burn. A burning fever, or any burning heat, or inflammation. INCERNIC'ULUM. From incernere,to sift. A strainer or sieve. Also, the pelvis of the kidney. INCIDEN'TIA. From incidere, to cut. A term formerly applied to medicines which were supposed to cut the phlegm, and thus promote its discharge. INCINERATION. Incinera'tio; from inciuero, to reduce to ashes. The reduc- tion of any substance to ashes by combus- tion. INCISED. Cut. Applied in Surgery, to a wound made with a sharp-edged instru- ment. INCISION. Incis'io. The methodical division of soft parts made with a sharp- edged instrument. Incision, Simple. In Surgery, a single incision, whether straight or curved. Incisions, Compound. In Surgery, in- cisions of various kinds, consisting of the intersection of one or more single incisions. INCISFVUM FORAMEN. Foramen incisivum. A canal, single below and double above, a little behind the incisor teeth, opening on the median line. INCISFVUS. Pertaining to the incisor teeth. Incisivus Inferior. Levator labii in- ferioris. Incisivus Lateralis. Levator labii superioris alasque nasi. Incisivus Me / dius. Depressor labii su- perioris alasque nasi. INCFSOR TEETH. Denies incisores: INC 356 IND denies acuti; denies adver' si; denies tomici. The four front teeth in each jaw are called incisors, from incido, to cut, because they cut the food. They occupy the central part of each maxillary arch. The crown or body of each is wedge-shaped ; the anterior sur- face is convex and smooth : the posterior is concave, and presents a tubercle near the neck ; the two surfaces come together form- ing a cutting edge. In a front view the edge is generally the widest part ; diminish- ing towards the neck, it continues narrow- ing to the extremity of the root. The root is single, of a conical shape; laterally, slightly flattened. The enamel is thicker before than behind, and behind than at the sides. The incisors of the upper jaw are larger than those of the lower. The centrals are about one-third wider than the laterals. The lateral incisors of the lower jaw are gener- ally a little wider than the central, though the difference in width is never so consider- able as to be very perceptible. INCISO'RIUM. A table on which a patient is placed for an operation. Also, a scalpel. INCISU'RA. Incision ; gash, or notch. Applied in Anatomy to the various notches in bones, e. g., the notches of the posterior edge of the crest of the ilium. INCOMBUSTIBLE CLOTH. Cloth manufactured from the fibres of asbestos. INCOMPATIBLE. Substances which cannot be prescribed together, on account of having a chemical action on each other. INCOMPRESSIBIL'ITY. A term ap- plied in Physics to the property which some bodies possess of resisting pressure without diminishing in volume under its influence. INCONTINENCE. Incontinentia; from in, and contineo, I contain. Inability to retain the natural evacuations. Abuse of the sexual appetite. INCORPORATION. Incorpora'tio ; from in, and corpus, a body. The thorough admixture of various substances so as to give them a uniform consistence. INCRASS'ANS. Incrassantia ; from incrasso, to make thick. Medicines which were formerly believed to have the property of thickening the fluids when too thin. INCREMENT'UM. Augmentation; in- crease ; growth. INCRUSTATION. IncrustaHio; from in, and crusta, a crust. The formation of a crust on the surface of a body, or over any substance. Also, the crust itself. INCUBATION. Incuba'tio; from in- cubare, to lie upon. In Natural History, the period a bird sits upon her eggs before the young are produced. In Medicine, the period that elapses from the time of the in- troduction of a morbific agent into the body before the invasion of disease. IN / CUBUS. From incubare, to lie upon. The nightmare ; an oppressive sensation of the chest during sleep, accompanied by un- pleasant dreams. INCUMBENT, lncum'bens; from in- cumbo, to lie down. A term applied in Botany to anthers of plants when the lower part is in contact with the filament, and in Zoology, to wings of insects when one lies over the other. INCURABLE. A term applied in Pa- thology, to diseases not susceptible of cure. INCURRED. Bent inward. IN'CUS. An anvil. The name of one of the bones of the ear. INDEHIS'CENT. Not opening spon- taneously when ripe; applied to the pericarp of certain plants. INDELIBLE INK. Marking ink. A solution of nitrate of silver, colored with sap- green or cochineal. The linen is prepared for the reception of the ink by the applica- tion of liquid pounce, made by dissolving two drachms of carbonate of soda and two drachms of gum arabic in four ounces of water. IN / DEX, gen. Indicis; from indicare, to point out. The forefinger. INDIA-RUBBER. Caoutchouc. The concrete juice of several tropical plants, but is obtained chiefly from the Siphonia cahuca, growing in South America and Java. It is obtained by tapping the trees, and is at first of a yellowish-white color, but darkens rapidly ou exposure. It derives its name, rubber, from having been used for more than fifty years only to erase pencil- marks. It is insoluble in water or alcohol. It melts at 24b° F., and remains fluid with- out change up to 500° F. Combined with sulphur and colored with vermilion, it ad- mits of being hardened by means of steam, IND 357 INE and is used in Mechanical Dentistry as a base for artificial teeth, &c. See Vulcanite. INDIAN ARROW ROOT. A plant of the genus Maranta. Indtan Cress, A plant of the genus Tropceolvm. Indian Date-Plum. See Diospyros lotus. Indian Fig. A plant of the genus Cactus. Indian Pink. See Spigelia Marilandica. Indian Physic. A plant of the genus Gillenia. Indian Tobacco. Lobelia inflata. Indian Turnip. See Arum Triphyllum. INDIANA RADIX. Ipecacuanha. INDICA CAMOTES. The potato. IN'DICANT. In'dicans; from indicare, to point out. Pertaining to an indication. INDICATING DAYS. Critical days. INDICATION. Indica'iio. The man- ifestation afforded by disease of what ought to be done. INDICATOR. Exten'sor pro'prius in'- dicis. An extensor muscle of the fore- finger. IN'DICUM. Indigo. IN'DICUS MORBUS. Venereal dis- ease. INDIGENOUS. Indig'ena. That which is peculiar to any country, in opposition to exotic. INDIGESTION. Dyspepsia. INDIGITA'TION. In Anatomy, a slip of muscle which is introduced in a cleft between two corresponding slips of another muscle. INDIGNABUN'DUS. A term applied in Anatomy to the rectus interims oculi muscle, from the expression of anger or scorn imparted by its action. INDIGO. The blue coloring- matter obtained from the Indiyofera tinctoria or anil; the indigo plant. INDIGOF'ERA. A genus of plants of the order Leguminosce. Indigofera Tinctoria. Indiyofera anil. The plant from which much of the indigo of commerce is obtained. INDIGOGENE. White indigo; deox- idized indigo. INDIGOT'IC ACID. The nitranilic acid of Berzelius; a product of the action of diluted nitric acid on indigo. INDIGOTIN'. The coloring principle of indigo. INDISPOSFTION. Slight disturbance of the healthy functions of the body, with- out manifest disease. INDOLENT. Indolens; from mi, priv- ative, and dolere, to be in pain. Without pain. Applied to tumors which are at- tended with but little pain. INDOLES. A natural disposition or character. INDUCTION, lnductio; from in, and ducere, to lead. In Philosophy, the pro- cess of bringing forward individual facts for the purpose of establishing some general conclusion; in Electricity, an influence ex- erted by an electrified body through a non- conducting medium, without any apparent communication of a spark. INDU'PLICATE. In Botany, a form of vernation in which the margins of the leaves are folded abruptly inward, while their external faces are applied to each other without any twisting. INDURAN'TIA. From induro, to har- den. Medicines which are supposed to har- den the parts to which they are applied. INDURA /r TION. Indura'tio. A har- dened and thickened condition of a part, usually resulting from inflammation. INDU'SIUM. Literally, a shirt. In Botany, the thin membranous covering of the fruit of ferns. In Anatomy, the amnion, because it covers the foetus. In Entomol- ogy, the covering of certain larvae. INE / BRIANTS. Intoxicating substan- ces. INEQUA'LIS. Unequal; applied in Pathology, to the pulsations of an artery, or respiratory efforts, when differing from each other ; and in Botany, to the parts or organs of plants which are not of equal size. INEQUALITY. Unevenness; alter- nate rising and falling of a surface; ap- plied in Dental Surgery to malformed teeth, and to decayed teeth which present an as- perated surface. INE'QUIVALVE. IncequivaVvis. A term applied in Zoology, to the shell of cer- tain ConchiJ'era, as the oyster; and in Botany, to the organs of plants, in which there is inequality in the size and figure of their constituent valves. INER'MIS. From in, privative, and INF 358 INF arma, weapons. Unarmed ; a terra applied in Botany to plants which are destitute of spines or prickles. INERTIA. From iners, slothful. A passive condition of parts. Also, inactivity. INEVAPORANT or IMPERMEABLE TISSUE. A substance used to prevent the evaporation of the liquid in water dressing. Oiled silk, caoutchouc, &c, will answer the indication. See Water Dressing. INFANCY. Infan'tia; from in, nega- tive, and fari, to speak. Early childhood, generally including the age from birth to the seventh year. INFANTICIDE. From infans, a child, and ccedere, to kill. The murder of a young child. INFANTILE TEETH. The temporary or milk teeth. INFARCTION. Emphrax'is. Engorge- ment of any of the tubes of the body. Stuff- ing ; constipation. INFECTION. The introduction of a deleterious agent, as marsh miasm, or efflu- via from patients crowded together, into the animal economy; or the propagation of dis- ease by such agencies. INFECUND'ITY. Sterility. INFE'RIOR. Inferus. In Botany, any organ of a plant situated below another. Inferior Strait. In Obstetrics, the lower strait of the pelvis, formed by the rami of the os pubis, the tuberosities of the ischium, and the os coccygis. INFERIOR LONGITUDINAL SI'- NUS. A vein of the dura mater, running along the lower margin of the falx cerebri. INFERO-BRANCHIA'TA. An order of gastropods in which the gills are situated below the mouth. INFIBULA'TIO. An affection in which the retraction of the prepuce is prevented. INFILTRATION. Injiltra'Uo; from jiltrare, to filter. Effusion. The accumu- lation of a fluid in the cells of an organ or texture. INFINITESIMAL. In, negative, and jin'is, a boundary. Infinitely small. INFIRMARY. Infrma'rium. A hos- pital. A charitable institution for the relief of the sick, and for their accommodation during treatment. INFLAM'MABLE. lnflammah'ilis ; from infiammo, to burn. Such bodies as inflame with facility ; easily enkindled ; susceptible of combustion. Inflammable Air. Hydrogen gas. Inflammable Air, Heavy. Carburetted hydrogen. INFLAMMATION. Inflamma'tio ; from inflammare, to set on fire. A state charac- terized by redness, heat, tension, swelling, and pain, and terminating by resolution, suppuration, mortification, adhesion, effu- sion, or induration. The terminal -itis added to the name of the organ or part affected, expresses this state ; as bronchitis, inflam- mation of the bronchia. Inflammation of the Bladder. Cys- titis. Inflammation of the Brain. Encepha- litis. Inflammation of the Breast. Mastitis. Inflammation of the Choroid Mem- brane. Iritis. Inflammation of the Eye. Ophthal- mitis. Inflammation of the Intestine. Enter- itis. Inflammation of the Iris. Iritis. Inflammation of the Kidney. Nephri- tis. Inflammation of the Lining Mem- brane of a Tooth. See Endodontics. Inflammation of the Liver. Hepatitis. Inflammation of the Lungs. Pneu- monitis. Inflammation of the Mouth. Stoma- titis. See Inflammation of the Mouth, Com- mon Diffused. Inflammation of the Mouth, Common Diffused. This is so fully and accurately described by Dr. Wood, in his treatise on the Practice of Medicine, that we shall quote his remarks upon the subject. He says, "It appears in reddened, somewhat elevated patches, or occupies large portions of the surface, sometimes extending apparently over the whole mouth. In some cases, it is superficial, with little or no swelling, and may be designated as erythematous ; in others, it occupies the whole thickness of the membrane, extending sometimes to the submucous tissue, and even to the neighbor ing structures, as the sublingual and sub- maxillary glands, and the absorbent glands of the neck, and occasions considerable tu- mefaction in all these parts. In the ery- INF 359 INF thematous form it is characterized by red- ness, a sense of heat, and sometimes con- siderable tenderness, but is not usually at- tended with acute pain ; when deeper in the tissue, it is often very painful. Por- tions of the epithelium sometimes become opaque, giving an appearance of whiteness in streaks or patches. Occasionally this coating is elevated in blisters, or even de- tached like the cuticle from the skin in scalds. Superficial ulcerations not unfre- quently occur, which may spread over con- siderable portions of the membrane. In certain states of the constitution, the ulcer- ative tendency is very strong, and deep and extensive sores occur, which are sometimes attended with gangrene. There is often a copious flow of saliva; though in some in- stances, this secretion, as well as that of the mucous follicles, is checked, and the mouth is clammy or dry. The sense of taste is usually more or less impaired, and speech and mastication are often difficult and pain- ful. When the tongue is affected, its sur- face is in general first covered with a whit- ish fur, through which the red and swollen follicles may often be seen projecting. This fur sometimes breaks off, leaving the sur- face red, smooth and glossy, with here and there prominent follicles, and very sensi- tive to the contact of even mild substances ; or the surface may be dry, hard and gashed, with painful fissures. When the gums are involved, they swell, and rise up between the teeth, around the necks of- which they not uufrequently ulcerate. In some rare instances this ulceration is very obstinate, and does not cease until it has extended into the sockets and destroyed altogether the connections of the teeth, which become loosened and fall out, after which the gums will heal. Ordinary stomatitis is seldom so violent as to induce symptomatic fever. For causes and treatment see Harris's Den- tal Surgery. Inflammation of the Periosteum of a Tooth. Periodontitis. Dental Periostitis. See Odontalgia. Inflammation of the Peritoneum. Peri- tonitis. Inflammation of the Pleura. Pleu- ritis. Inflammation of the Pulp of a Tooth. Endodontics. Inflammation of the Retina. Reti- nitis. Inflammation of the Stomach. Gas- tritis. Inflammation of the Testicles. Or- chitis. Inflammation of the Urethra. Ure- thritis. Inflammation of the Uterus. Hys- teritis. Inflammation of a Vkin. Phlebitis. INFLAMMATIUN'CULA. An insig- nificant inflammation, commonly superfi- cial. INFLAMMATORY. Inflammato'rius. Of the nature of inflammation; tending to excite heat and inflammation. Inflammatory Fever. Synocha. INFLA'TIO. From inflo, to blow into. In Pathology, a windy swelling, but usually applied to the stomach and bowels. INFLA'TUS. Inflated. INFLEX'US Bent inward. INFLORESCENCE. Inflorescen'tia, from infloresco, to flourish. In Botany, the mode in which flowers are arranged upon a stem. INFLUENZA. The Italian word for influence. Epidemic catarrh is so termed because it was supposed to be the result of a peculiar atmospherical influence. Char- acterized by the suddenness of its attack, general depression, great heaviness over the eyes, and a very distressing fever. Influenza Europ^ea. Influenza. INFRA-OR'BITAR. Suborbitar; be- neath the orbit. Infra-Orbitar Foramen. A foramen immediately below the orbit. Infra-Maxilla'ris. Submaxillary. Infra-Pu / bian Ligament. Triangular ligament. Infra-Scapula'ris. The subscapulars muscle. InfraSpina / tus. From infra, beneath, and spina, a spine. A muscle of the hu- merus. INFUNDIB'ULIFORM. Infnndibuli- formis ; from infundibulum, funnel, and forma, likeness. A term applied in Anat- omy to the circular ligament of the atlas, and in Botany to organs of plants, funnel- shaped. INFUNDIBULUM. From in, and fyn- INF 360 1NG dere, to pour out. A funnel. In Anatomy, a name given to parts which resemble a funnel. In Surgery, infundibula or funnels are used to direct, steam or vapors ; to conduct the actual cautery to certain morbid parts. Infuxdibulum of the Brain. A de- pression or canal leading from the third ventricle to the pituitary gland. Infundibulum of the Kidney. The small cup-like membranous canals, which surround the papillae of the kidney, and open into its pelvis, whither they convey the urine. INFUSIBLE. Not fusible; incapable of being reduced to the fluid state by heat. INFUSION. Iafusio; from infundere, to pour in. In Pharmacy, the act of pour- ing a hot or cold fluid upon vegetable sub- stances for the purpose of extracting their medicinal properties. Also, the product itself. In Surgery, the introduction of med- ical substances into the veins. INFUSO'RIA. Animalculae developed in infusions of animal or vegetable sub- stances, and in stagnant waters. INFU'SUM. An infusion. Infusum Anthem'idis. U. S. Infusion of chamomile. Dose, f ^j to ^iss. Infusum Armora'ci.e. U. S. Compound infusion of horseradish. Dose, f^j tofjiij. Infusum Auran'tii Compos'itum. Ph. L. Compound infusion of orange-peel. Dose, f^iss to f^ij Infusum Buchu. U.S. Infusion of buchu. Infusum Calum'b^e. U. S. Infusion of Columba. Dose, f^iss to f t liij. Infusum Cap / sici. Infusion of Cayenne pepper. Dose f^iss. Infusum Caryophyt/li. U. S. Infusion of cloves. Dose, f^iss to fjij. Infusum Cascarii/luE. Infusion of cas- carilla. Dose, f^iss to f^ij. Infusum Cat / echu Compos / itum. U. S. Compound infusion of catechu. Dose, f^iss to ij. Infusum Chiret't.e. Ph. E. Infusion of chiretta. Dose, f^j to iij. Infusum Cincho'n^. U. S. Infusion of cinchona. Dose, f ^j to iij. Infusum Cincho'n^e Compos'itum. U. S. Compound infusion of cinchona. Infusum Digita / lis. U. S. Infusion of digitalis. Dose, f £j. Infusum Eupato / rii Perfolia'ti. U. S. Infusion of thorough wort. Dose, f.fij. Infusum Gentia'n^e Compos / itum. U. S. Compound infusion of gentian. Dose, f^j to ij. Infusum Hu'muli. U. S. Infusion of hops. Dose, f ^iss to iij. Infusum Krame'ri^e. U. S. Infusion of rhatany. Dose, f^iss. Infusum Li'ni. U. S. Infusion of flax- seed. Infusum Lini Composi / tum. Infusion of flaxseed. Dose, a teacupful. Infusum Men'th.e Vir'idjs. Ph. D. Infusion of spearmint. Mint tea. Dose, f^j to iij. Infusum Mentha Compos / itum. Ph. D. Compound infusion of mint. Infusum Parei'r.e. Ph. L. Infusion of pareira brava. Dose, f ^j to ij. Infusum Pru'ni Virginia'n^e. U. S. In- fusion of wild-cherry bark. Dose, f^j to "J- Infusum Quas'si^e. U. S. Infusion of quassia. Dose, f 3j to iv. Infusum Rhe'i. Ph. U. S , L., and D. In- fusion of rhubarb. Dose, f ^j to iv. Infusum Ros^e Compos / itum. Ph. U. S. and L. Compound infusion of roses. Dose, f^iss to Oss. Infusum Sarsaparit/lj^. U. S. Infu- sion of sarsaparilla. Dose, f ^ij to iv. Infusum Scopa'rii. Ph. L. lufusion of broom. Infusum Sen'n^e. U. S. Infusion of senna. Dose, f 3j to iv, as a cathartic. Infusum Sennje cum Tamarix'dis. Ph. D. Infusion of senna with tamarinds. Infusum Serpenta'ri.e. U. S. Infusion of Virginia snake-root. Dose, f Jiss. Infusum Simaru'b^e. Ph. L. Infusion of simaruba. Dose, f.^j to ij. Infusum Spige'li^e. U.S. Infusion of pink root. Dose, £iv to Oss. Infusum Taba / ci. Ph. U. S., L., and D. Infusion of tobacco. Infusum Ui/mi. U. S. Infusion of slip- pery elm bark. Infusum Valeriax'jb. U. S. Infusion of valerian. Dose, f 5iss to ij. Infusum Zingib / eris. Infusion of ginger. Dose, f ^iss to ij, as a carminative. INGES / TA. From ingero, to carry in. The aliments introduced into the body. INGLU'VIES. Gluttony. Also, the crop of birds. INII 361 INN- INGOT. A bar of gold, silver, or other metal, cast in a mould. Ingot Mould. A mould in which ingots are cast, usually made of iron, and com- posed of two pieces. INGRAS'SIAS, WINGS OF. Two por- tions of the symmetrical halves of the sphe- noid bone, termed the large and small wings. INGRAVIDA'TION. Pregnancy. Fe- cundation. INGREDIENT. From ingrediens, en- tering into. That which enters into, or is a component part of, a compound or mixture. Applied to medicinal compounds. INGUEN. The groin. IN / GUINAL Inguina'lis ; from inguen, the groin. Belonging or pertaining to the groin. Inguinal Artery. The external iliac immediately beneath the crural arch. Inguinal Canal. The canal for the sper- matic cord, formed by the folding of the lower edge of the external oblique muscle. Inguinal Glands. The lymphatic glands in the groin. Inguinal Hernia. Where part of the bowels protrude at the abdominal ring. Inguinal Ligament. Poupart's liga- ment. INGULATIO. In, and gu'la, the throat. Introducing anything into the throat. Ingulation. INHALATION. The act of drawing in vapors with the breath. Inhalation of Ether. See Anaesthetic Agents. Inhalation of Chloroform. See An- aesthetic Agents. INHA'LER. An instrument used for the inhalation of ether, chloroform, and other vapors. Inhaler, Nitrous Oxide. A breathing- tube for the inhalation of nitrous oxide gas ; constructed of vulcanized rubber, or metal It consists of a tube and mouth-piece, the tube containing two valves, one valve upon the inside of the tube, allowing the gas to pass through to the mouth of the patient; the other upon the outside, which allows the exhalation to pass off and not be again inhaled. Attached to the tube is a stop-cock to ar- rest the flow of gas when desired ; also, a piece of thin rubber cloth, which is used to prevent air from entering the mouth and nostrils during the period of inhalation. This rubber cloth is attached to the inhaler by cutting a hole in it near the centre and slipping it over the end or nozzle. A num- ber of inhalers are in use, known by the names of their inventors. See Nitrous Ox- ide Apparatus. INHE'RENT. That which belongs, ad- heres, or is united to a thing. INHUMATION. Inhuma'tio; from inhumo, I put into the ground. The bury- ing of the dead. IN'IAD. Inial. Towards the plane of the ridge of the occiput. INFTIS. Inflammation of fibrous mem- brane. INJACULA'TIO. Acute pain of the stomach with rigidity and immobility of the body. INJEC / TION. Injec/tio; from injicere, to throw into. The introduction, by means of a syringe or other instrument, of a medi- cated liquor into a natural or preternatural cavity of the body. When thrown into the rectum, injections are called enemata. In Anatomy, filling of the vessels of the dead body with some bright substance, to exhibit their form or number to better advantage. INNATE. Inna'tus ; from in, and nascor, to be born. Inborn; not acquired. Innate Diseases. Diseases with which the infant is born. Congenital. INNERVATION. Imierva'tio; from in, and nervits, a nerve. The vital opera- tion by which a part or organ is supplied with nervous influence. INNOMINA'TA ARTE'RIA. The first branch given off by the arch of the aorta. Innominata Cartilago. Cricoid. Innominata Cavitas. A cavity in the outer ear, between the helix and anthelix. Innominata Mino / ra Os / sa. The three cuneiform bones of the tarsus. INNOMINA'TI NERVI. The nerves of the fifth pair. INNOMINA / TUS. Innominatum. From in, privative, and nomen, a name. Without a name. A term applied in Anatomy to the bone, which, in early life, is divided into three parts, viz. : the ilium, pubis, and is- chium. An artery, the fifth pair of nerves, and a foramen have also been thus desig- nated. See Arteries. Nerves. 1X3 362 1X3 Ivnomtnatum Foramen. A foramen in the petrous portion of the temporal bone, through which the Vidian nerve passes. Inxomi.vatum Os. A large irregular bone, which forms the anterior and lateral walls of the pelvis. It is divided in the young subject into three portions, the ilium, ischium, and pubis, which join each other in the acetabulum. INOCHONDRITIS. Ic. wof, a fibre, and x ov dpoc. a cartilage. Inflammation of tendons and cartilages. INOCULATION. In^da'tio. The artificial introduction of a poison into any part of the body, especially the variolous or vaccine virus. Variolation. Ihooulation, Cow-Pox. Vaccination. INOHYMENI'TIS. Initis. INO'lfA. r f] ivor, a fibre. A fibrous tumor. INORGAN'IC. From in. without, and organum. an organ. Having no organs. In Chemistry, minerals and other bodies which are not derived from organic pro- ducts. INOSCLERO'MA. Induration of fib- rous tissue. INOSCULATION; hummWtio; from in. and oseuhtm, a little mouth. The union of the extremities of vessels. Anastomosis. INOSIC ACID. A syrupy fluid obtained from juice of flesh after the separation of creatine. INSALIFI'ABLE. In. and salifiabilis ; capable of being formed into a salt. Ap- plied to oxides which are not acids, nor capable of neutralizing them. INSALIVA'TION. Insaliva'tio. The admixture of saliva with food during masti- cation. The process of mastication, and the presence of food in the mouth, increases the secretion of this fluid, as does also a desire for, or the odor of, savory alimentary substances. The salivary glands being liber- ally furnished with nerves and bloodvessels, are easily excited and readily provided with an abundant supply of viscous fluid, which flows in greater quantity when the food is acrid'and stimulating, than when it is of a less exciting nature It is estimated that from five to six ounces is secreted at a meal. This, together with the fluid secreted by the labial, palatine, and sublingual mu- cous glands, as well as the moisture from the exhalant arteries of the mouth, not only contribute to lubricate the buccal cavity, but mix with, dissolve, and bring together the divided alimentary particles : assist in forming them into a pultaceous mass, and produce on them the first change which they undergo in the process of digestion. INSALU'BRIOUS. Unhealthy. INSANITY. Insan'itas. Madness: I mental alienation. INSCRIPTIONES TEXDIX'E.E MUS- CULO'PiUM. Tendinous fibres crossing muscles, especially on the abdomen. INSECTA. Insects: a class of inver- tebrata, belonging to the sub-kingdom Ar- ticulata of Cuvier, and the Diplo-gangliata of English zootomists. comprehending ani- ; mals furnished with two antenna?, six legs, 1 usuallv two or four wings, attached to the thorax, and spiracula for respiration. The class is divided into the orders Aptera, Cole- opt era. Diptera, Hemiptera, Bgmenoptera, Lepi'lojjtera, Xeuroptera, and Ortkoptera. INSECTIV'ORA. A family of quad- ruped invertebrata, the species of which i feed on insects; and in Temminck's sys- ! tem, an order of birds that feed exclusively or principally, on insects. INSENSIBILITY. Ancesthe'sia. Loss or absence of sensation. INSERTION. Pnser'tio. In Anatomy and Botany, the intimate connection of one part or organ to another, as the insertion of a ligament or muscle into a bone : of a cor- olla, stamen, pistil, leaf, or ovary, into any part of a plant. In Dental Surgery, the engrafting of an artificial tooth on the root of a natural one. Insertion of ax Artificial Tooth. See Pivot Tooth, Manner of Insertion, in Harris's Dental Surgery. INSESSIO. Semicupium. IXSID'IOUS. In Pathology, diseases which do not at first appear as formidable as they are, and which are apt to escape at- tention. INSIDENTIA, That which arises on the surface of urine. IXSI'TIO. Inoculation. Ixsitio Dentis. Implantation of a tooth. INSOLATION. Insola'tio; from m, and sol, the sun. Exposure to the direct rays of the sun. employed for drying Phar- maceutical substances, and Chemical prep- INS 363 INT arations, and sometimes in Therapeutics, to excite cutaneous irritation, or to rouse the vital powers when languid. Coup de soleil. INSOLUBII/ITY. InsoluM'itas. The property of a solid which prevents it from dissolving when immersed in a fluid. INSOM'NIA. From in, in,.and somnus, sleep. Sleeplessness, usually a sign of dis- ease. INSPIRATION. Inspira'tio; from in, in, and spiro, I breathe. The act by which the air is drawn into the lungs. INSPIRATORY. A name given to certain muscles, which, by their contrac- tion, enlarge the chest, and produce inspi- ration. 1NSPISSA / TI0N. From in, and spis- satus, thickened. The evaporation of a juice or decoction to a thick consistence. INSTEP. The most elevated part o f the top of the foot. INSTILLATION. Installa'tio. The act of pouring out a liquid drop by drop. INSTINCT. Instinc'tvs. Inwardly moved. That power of the mind by which animals are spontaneously led or directed to do whatever is necessary for the preserva- tion of the individual, or the continuation of the species. INSTINCTIVE. Spontaneous ; caused by instinct; applied in Physiology to those involuntary actions which are excited im- mediately through the nerves, a part of the reflex function. Among these are, the closure of the eyelids; the act of sucking; the act of swallowing ; the closure of the glottis ; the action of the sphincters ; in- spiration, sneezing, vomiting, &c. INSTITUTES OF MEDICINE. The theory and practice of medicine. INSTRUMENT. Instrumen'tum. Any mechanical agent employed in the opera- tions of any of the branches of manual medicine. Instruments for Cleaning Teeth. The instruments employed for this purpose are constructed with variously shaped points, to suit the peculiar views of the operator both with regard to convenience and effici- ency. They consist of steel stems fixed in handles ; with triangular-shaped points, more or less curved, with sharp edges. Every dentist requires from six to eight instru- ments of this description, and so shaped that they may be readily applied to any part of the surface of the crowns of the teett. Instruments for Enlarging the Canal in the Root of a Tooth. The burr drill, flat drill, and broach, or modifications of these, are the instruments usually employed fcr this purpose. Instruments for the Extraction of Tketh. Those most commonly employed in this operation are forceps, the key of Garengeot, the punch, elevator, hook, and conical screw. Instruments for Filling Teeth. Such as introducers, condensers, &c. Instruments for Removing Dental Caries. Such as excavators; drills, burr and flat, enamel chisels, &c. INSUFFLA'T] ON. Insuffla'tio ; from in, and snfflo, to blow. The injection of a gaseous fluid into a cavity of the body. INSULA CEREBRI. The intermedi- ate lobe of the brain. INSULATION. From insula, an island. In Electricity, the state of a body when cut off from communication with surrounding objects by non-conductors. IN'TEGER. Integrant Entire. INTEGRAL PAR'TICLES. From in- teger, entire. The smallest particles into which a body can be divided by mechani- cal means. INTEGRITY. Integ'ritas ; from inte- ger, entire. A term employed by the French to express a perfectly healthy state of the organic tissues, or of the entire animal body. INTEG'UMENT. Iniegnmen'tum; from in, and tegere, to cover. That which serves to cover or envelop. In Anatomy, the skin and cellular tissue constitute the common integument. INTELLECT. Intellec/tus ; from intel- ligere, to understand. The aggregate of the faculties of the mind. Understanding* INTEMPERANCE. From in, nega- tion, and temperare, to temper. Immode- rate indulgence of the appetite, especially for alcoholic drinks. INTEMPER / IES. Derangement or dis- order, either in the atmosphere or in the body. INT 364 INT INTENSITY. Activity, violence; ap- plied in Pathology to disease. INTENSION. Inten'tio ; from in, and tendere, to stretch. In Surgery, union by Jirst intention is the cicatrization of a wound without suppuration ; union by sec- ond intention is that which does not occur until the surfaces have suppurated. INTER-. A prefix, signifying, between, intermediate. INTERA'NEA. Entrails. INTERARTIC'ULAR. Anything be- tween the articular extremities of bones. INTERCALARY DAYS. The days which occur between those that are criti- cal. Also, the days which intervene be- tween the paroxysms of intermittent fever. INTERCER'VICAL. A term applied by Chaussier and Dumas, to certain mus- cles between the cervical vertebras. INTERCA'DENCE. In Pathology, a supernumerary beat of the pulse. INTERCELLULAR. Between the cells. INTERCLAVICULAR. Applied to a ligament which passes from one clavicle to the other. INTERCOSTAL. Intercosta'lis. Ap- plied to muscles and vessels situated be- tween the ribs. Intercostal Arteries. The arteries which run between the ribs. Intercostal Muscles. The muscles which extend from the inferior edge of each rib above to the superior edge of each rib below. They constitute eleven pair of double muscles, and are distinguished into external and internal. Intercostal Nerve. Trisplanchnic nerve. Intercostal Nerves. The great sym- pathetic, and twelve branches from the anterior branches of the dorsal nerves, which are distributed to the muscles of the walls of the thorax and abdomen. Intercostal Spaces. The intervals be- tween the ribs. Intercostal Veins. The veins which accompany the intercostal arteries. The right superior intercostal vein is often want- ing. When it exists, it opens into the pos- terior part of the subclavian. INTERCOSTO-HU'MERAL. A term applied to the cutaneous branches of the second and third intercostal nerves. INTERCURRENT. Intercut' reus ; from inter, between, and currere, to run. A term applied in Pathology to diseases which occur at different seasons, or that do not belong to any particular season. Also, a disease which occurs during the progress of another disease. INTERCUTA'NEOUS. Subcutaneous. INTERDENTAL. Interden'tium ; from inter, between, and dens, a tooth. The spaces between the teeth. Interdental Splint. An appliance used in the treatment of fractures of the maxillary bones, by which the fractured extremities are retained in close and per- fect apposition, and the exact antagonism of the teeth maintained until provisional callus is thrown out and union is effected. Come, a French surgeon, in 1855, invented a gutta percha splint which proved success- ful in a number of cases. Hamilton in his work on Fractures recommends a gutta percha splint in connection with his band- age. Prof N. R. Smith is the inventor of a metallic splint, with impressions for the teeth, adjusted with a counter-splint and screws under the jaw. But it is only since vulcanized rubber has come into general use that interdental splints, constructed of this material, have fulfilled all the required indications in the treatment of fractures of the maxillary bones. Appliances of this kind, constructed of vulcanized india-rub- ber, are the inventions of Drs. J. B. Bean and T. B. Gunning, and have proved suc- cessful in the treatment of the most com- plicated cases of fracture of the maxillary bones. Interdental Splint, Bean's. See Frac- tures of Maxillary Bones. INTERDIG'ITAL. Between the fin- gers, applied to the spaces in that situation. INTERGANGLIOX'IC. Nervous cords connecting the ganglia. INTERGLOBULAR SPACES. Cer- tain cavities or spaces in the dentine, which are said, by Kolliker, to be filled with a soft substance, resembling tooth cartilage. In the sections for microscopical observation this soft substance has dried up and cavities are formed which are called interglobular spaces. See Iutertubular Tissue. INT 365 INT INTERLOBULAR. Between the lob- ules, as of the lungs or liver. INTERMAXILLARY. Intermaxilla' ■ ris ; from inter, between, and maxilla, a jaw. Situated between the jaws. Intermaxillary Bone. A portion of bone wedged in between the superior maxil- lary bones of the human foetus, found in the mammalia. INTERMEDIARY. From inter, be- tween, and medius, middle. Lying between two bodies; in the middle; interposed. ' INTERMISSION. Interims' sio ; from inter, between, and mitlere, to put or send. The intervals which occur between two par- oxysms of an intermittent fever, or other disease, or between two pains. INTERMITTENT. A disease in which there are intermissions, or one which ceases and returns after stated or uncertain in- tervals. Intermittent Fever. A fever consist- ing of paroxysms which subside and return at regular periods. Called Quotidian, where the paroxysms return every day ; Tertian, where they return every third day, that is, on alternate days ; Quartan, where they re- turn every fourth day, thus leaving two days between the paroxysms. INTERN ODE. From inter, and nodus, a knot. In Botany, the space between the leaves upon a branch. INTER'NUS AURIS. The tensor tym- pani muscle of the ear. INTERMUSCULAR. That which in- tervenes between two muscles. INTERNO'DIUM. That which is be- tween the knuckles. A phalanx. INTEROS'SEI MA'NITS. The small muscles situated between the metacarpal bones, extending from the bones of the carpus to the fingers. Interossei Pe / dis. The small muscles situated between the metatarsal bones. INTEROSSEOUS. From inter, be- tween, and os, a bone. Situated between bones. Interosseous Artertes. Small branches from the dorsalis carpi arteries, distributed to the interosseous ligament of the forearm and between the interosseous muscles. Interosseous Nerve. A branch from the median nerve which passes over the interosseous ligament of the forearm. INTERPARIETAL BONE. A bone lying in the situation of the upper angle of the os occipitis. It is supposed by Von Tschudi to be characteristic of the Peruvian race, but it has no ethnological importance whatever, as the same thing is occasionally found even in adult skulls of all races. INTERRUPTED. Broken in its regu- lar form ; disturbed in its normal arrange- ment. Interrupted Suture. A suture formed by passing a needle, armed with a ligature, through the lips of the wound previously brought in contact ; and then tying the ex- tremities of the thread. The other stitches are made in the same manner. They are separate or interrupted. INTERSCAPULAR. Inter ■scapula' ris. That which is between the shoulders. INTERSCAPU'LIUM. The spine of the scapula. INTERSEP'TUM. From inter, be- tween, and septum, a partition. The sep- tum narium; also, the uvula. Interseptum Virginale. The hymen. INTERSPINAL. Interspinals; from inter, between, and spina, the spine. Ap- plied to muscles, nerves, &c, situated be- tween the spinous processes. INTERSPINA'LES. The portions of muscles situated between the spinous pro- cesses of the cervical, dorsal, and lumbar vertebras. They are distinguished by the names, interspinales colli, interspinals dor si et lumborum. INTERSTICE. From inter, between, and sto, I stand. An interval ; a space be- tween two organs. INTERSTFTIAL. Relating to or con- taining interstices, as interstitial matter, interstitial absorption, &c. See Absorp- tion. INTER-TRANSVERSA'LES. The small quadrilateral muscles situated be- tween the transverse processes of the ver- tebras of the neck and loins. INTERTRIGO. From inter, between, and tero, to rub. Excoriation or chafing of the skin about the anus, groins, and other parts of the body. INTERTUBULAR TISSUE. The in- tervening substance in the structure of den- tine, situated between the dentinal tubuli; the connecting 1 matrix. It contains the INT 366 mv greater part of the earthy constituents of dentine. See Dentinal Tubuli ; also Interglobular Spaces. INTERVERTEBRAL. Intervertebral lis. That which is situated between the vertebrae. Intervertebral Cartilages. The car- tilages between the vertebrae. INTESTAB'ILIS. Intesta'tus. Cas- trated. INTESTINAL. Implicating or belong- ing to the intestines. INTESTINA'LIA. Intestinal worms. INTES / T1NE. Intestiuum; from intus, within. The convoluted membranous and muscular tube extending from the stomach to the anus. It is distinguished into small and large. The former include the duode- num, jejunum, aud ileum ; and the latter, the caecum, colon, and rectum. IN'TIMUM UiVGUIS. Rootof the nail. INTOLERANCE. That condition of the body which indicates the impropriety of using certain remedies, as intolerance of bloodletting, &c. INTOXICATION. Intoxica'tio ; from in, and toxicum, a poison. Ebriety; the effect of alcoholic liquor taken in excess. INTRALOBULAR. Within a lobule. In Hepatic Anatomy, applied to the veins of the lobules, the radicles of the hepatic veins. INTRAVER'TEBRATED. Animals having their osseous system within the body. Same as vertebrated. INTRINSIC. Intrin'secus; from intra, within, and secus, towards. Inherent, not adventitious. In Anatomy and Pathology, organs and diseases situated internally. INTRO'IT QS. Entrance ; act of enter- ing. INTROMISSION. Intromis'sio; from intro, within, and mitto, I send. The intro- duction of one body, or organ, into another. INTROSUSCEP'TION. lutrosuscep'- tio. See Intussusception. INTUMESCENCE. Intumescentia ; from intumescere, to swell. Increase of size in a part. Swelling. INTUSSUSCEPTION, lntussuscep'- tio; from intus, within, and suscipio, I receive. In Physiology, nutrition ; the mode of increase peculiar to organized bodies. In Pathology, the introduction of a portion of intestine into that which pre- cedes or follows it. IN / ULA. Elecampane. Also, a genus of plants of the order Asteracece. Inula Dysenter'ica. The lesser in- ula, formerly supposed to possess antidys- enterie virtues. Inula Hele / ntum. The systematic name of the common inula or elecampane, a plant possessing aromatic, tonic, expec- torant, diuretic, and diaphoretic properties. Dose, 9j to 5j. IN / ULIN. A white starch-like sub- stance obtained from the roots of the Inula helenium and of Colchicum. INUNC'TIO^. Inunc'tio. A liniment or ointment. Also, the act of anointing. INUS'TION. Cauterization. INVAG'INATED. lnvagina'tus ; from in, and vagina, a sheath. Applied to a part received into another. Intussuscep- tion. INVAGINATION. Intussusception. INVALID. Applied to those affected by sickness. INVASION. Inva'sio. The period when a disease first makes its attack, or is developed. INVERMINA'TION. Helminthia'sis. Verminous disease ; that condition which gives rise to the presence of worms. INVER'SIO PALPEBRARUM. See Entropion. Inver'sio U'teri. Partial or complete inversion of the uterus. INVERSION. Inver'sio. Turned in- side out. INVERTEBRA'TA. Invertebrates. Animals which have no vertebral column, a subdivision of the animal kingdom, com- prehending Mollusca, Articulata, and Zo- ophyta, each of which comprises several classes. INVISCA'TIO OC'ULI. Adhesion of the eyelids to one another, or to the globe of the eye. INVOLUCEL'LUM. A partial involu- crum. INVOL'UCRUM. From in, and volvo, to wrap up. A wrapper. In 'Anatomy, a membrane which surrounds a part. In Botany, the bracteae which surround the flowers of the urn belli ferae. Involucrum Cordis. The pericardium. ION 367 IRE INVOLUTE. Involu'tus. Rolled in- ward. FODATE. I'odas. A genus of salts, formed by the union of iodic acid with a salifiable base. IO'DIC ACID. Acidum iodicum. A white semi transparent solid ; a compound of iodine and oxygen, of an astringent and sour taste, destitute of odor. FODIDE. A compound of iodine with a simple body. IODIDE OF POTASSIUM. Potassii Iodidum ; which see. I'ODINE. Io'dinum; from ivdrjc, vio- let-colored. A soft, friable, opaque solid, of a bluish-black color and metallic lustre. Iodine and the iodides are used with great success in solution and tincture in goitre a,nd some scrofulous affections. See Tinc- tura Iodini. IO'DINA. Iodine. IODIN'IUM. Iodine. IO'DINUM. Io'num. Iodine. IO'DISM. The morbid effects of iodine. IODOFORM.' A crystalline substance of a citron color, obtained by the reaction on each other of iodine, bicarbonate of potash, water, and alcohol. Teriodide of formyl. IODO-HYDRARGYRATE OF PO- TASSIUM. A double salt of iodide of po- tassium and biniodide of mercury. IODOM'ETHE. Iodium, iodine, and fiedrj, drunkenness. The nervous state in- duced by too free use of iodine. 10 DO PHTHISIS. Iodium, and pJifkis'- is, a wasting. Tabes, or wasting, caused by the abuse, or the excessive use of iodine. IODO'SIS. Iodism. IOD'URETS. Iodides. lONID'IUM. A genus of plants of the order Violacece. Ionidium Ipecacuan'ha. A Brazilian plant, which yields a root of a yellowish- gray color, containing five per cent, of emetine. False Brazilian ipecacuanha. Ionidium Marcucci. A South Ameri- can plant, called by the natives Cinchun- chulli, ION'THUS. From iov, the violet, and av&oc, a flower. A small unsuppurative pimple on the face ; a variety of acne. Also, the down on the face which precedes the beard. IOTACIS'MUS. Defective articulation, in which the patient is unable to pronounce the palatals, J and G soft. IPECACUANHA. The pharmacopceial name of the Cephaelis ipecacuanha, a South American plant. In large doses, it is emetic 5 in smaller, diaphoretic and expec- torant. Dose, as an emetic, gr. x to xx ; as an expectorant, gr.j to ij. Dose of the syrup, Jj = 15 grains of Ipecac. Ipecacuanha, American. See Euphor- bia Ipecacuanha. Ipecacuanha, Annulated. The root of the Cephaelis ipecacuanha. Ipecacuanha, Black. The root of the Psychotria emetica of Peru. Ipecacuanha, False Brazilian. The root of the Ionidium ipecacuanha. Ipecacuanha, Undulated. Ipecacuanha, white. IPOMiEA. A genus of plants of the order Con»olvulaceo3. Ipom^ea Pandurata. Wild potato ; wild rhubarb ; wild jalap. The root is used in domestic medicine as a substitute for rhu- barb and jalap. Ipom^ea Purga. The jalap plant, the root of which is an active but safe purga- tive. IRACUN'DUS. The rectus externus oculi. IRAL/GIA. JWs, and alyoc, pain. Pain of the iris. I R I A N K I S ' T R I U M. IrianMs'tron. Iris, and ayniarpov, fish-hook. A hook- shaped instrument used in the operation for artificial pupil by separation. IRIDA'CE^E. The cornflag tribe of Monocotyledonous plants. IRIDAUXE'SIS. Exudation of fibrin in the tissue of the iris. IRID^E'MIA. Hemorrhage from the iris. IRIDECTOMEDIAL/YSIS. From ipig, iris, eKTOjUTj, excision, and (ha^voic, separa- tion. The formation of an artificial pupil, by excision and separation. IRIDECTOMUS. An instrument, or kind of knife used for the operation of irid- ectomy. IRIDECTOMY. Iris, and enrefivo), to cut out. The operation of removing or cutting out a portion of the iris. IEO 368 IRE IRIDENCLEI'SIS. The strangulation of a detached portion of the iris. IRIDESCENT. The property of shin- ing with many colors. IRID'IUM. A gray, brittle and very fusible metal, found with the ore of pla- tinum. IR'IDOCELE. Iris, and ktjIv, a tumor. Hernia, in which a portion of the iris is protruded. IRIDOMAI/ACIA. Softening of the iris. IRIDONCO'SIS. Tumefaction or thick- ening of the iris. IRIDOT'OMY. Iridoto'mia. The oper- ation for artificial pupil by incision. IRIN. A camphor obtained from Iris Florentine. IRIS. In Anatomy, a flat and circular partition between the anterior and poste- rior chambers of the eye, perforated in the centre by a round orifice called the pupil. In Botany, a genus of plants of the order Iridacece. Iris Florenti'na. Florentine orris ; orris root. The fresh root is acrid, but when dry has an agreeable odor, and is used in dentifrices. Iris German'ica. The flower-de-luce. Iris nostra. The fresh root has a strong, disagreeable smell, and acrid, nauseous taste. It is a powerful purgative. Iris Palustris. The yellow water flag. The dried root possesses astringent proper- ties. Iris Versic/olor. The blue flag. The root is an active purgative. IRISH MOSS. The Chondrus crispus. IRITIS. Inflammation of the iris. IRON". Ferrum. A metal of a bluish- gray color, fibrous or granular texture, and brilliant fracture. Iron, Hydrated Peroxide of. Hydra- ted sesquioxide of iron. See Sesquioxide of Iron. Iron, Perchloride of. A valuable styptic applied to bleeding surfaces, clear or diluted with an equal quantity of water. Iron, Persulphate of. Monsel's solu- tion of persulphate of iron acts topically as a powerful astringent and mild caustic. It is prepared by rubbing nitric acid with the sulphate of iron, and gradually adding water. For the arrest of hemorrhage, it may be applied clear, or diluted with an equal quantity of water. It combines with albumen to form a pale yellow compound, and on this property depends its chemical action on the tissues of the body. Iron, Sesquichloride. Crystallized, pos- sesses the same properties as the persul- phate, and is used in the same manner. Iron, Subsolphate. Monsel's powder. Possesses the same properties as the per- sulphate. Many prefer this solid prepara- tion as being more convenient for use. A pellet of cotton may be saturated with san- darac varnish, the powder taken up on this, and applied to the bleeding cavity, in cases of hemorrhage after the extraction of teeth. Iron, Preparations of. See Ferri Aeetas, &c. IRREDUCIBLE. Applied to fractures, dislocations, hernia, &c, which are not capable of being restored to their natural position. IRREGULAR. Irregula'ris. Applied to the types of diseases, and to the pulse, when its beats are separated by unequal in- tervals. Also, to the teeth when one or more is out of the dental arch. IRREGULARITY. Deviation from an established rule or straight line. Irregularity of the Teeth. Deviation of the teeth from their natural arrangement is of frequent occurrence, and is dependent upon a variety of eauses. The following are among the most frequent : 1. Want of simultaneous action between the destruc- tion of the roots of the temporary teeth and the growth of the permanent; 2. The pre- mature removal of one or more of the tem- porary ; 3. Disproportion between the size of the alveolar arch and the teeth ; 4. Su- pernumerary teeth ; and lastly, malforma- tion of the jaws. The deviations of the teeth from the nat- ural arrangement, are exceedingly variable. Mr. Fox enumerated four varieties of irreg- ularity in the front teeth. 1. The appearance of one of the permanent central incisors of the upper jaw behind the corresponding temporary tooth, so that at each occlusion of jaws, the lower incisors come before it, causing great deformity and preventing the deviating tooth from acquiring its proper position. 2. The appearance of both of the upper permanent central incisors behind IKK 369 ISA the corresponding temporary teeth, while the laterals occupy their proper position. 3. The appearance of the upper lateral in- cisors behind the temporary, while the cen- trals are in their proper place. 4. The ap- pearance of all the upper permanent incisors behind the temporary teeth, the lower inci- sors shutting in front of them. The cuspid teeth sometimes present a similar variety of deviation from the natural position. Various other varieties of deviation are met with in the upper incisors. One some- times overlaps another, or is turned upon its axis, giving the crown an oblique or transverse direction across the alveolar ridge. At other times one or more come out in front of the circle of the other teeth. Irregularity in the arrangement of the lower incisors, though less frequent in its occurrence, is occasionally met with, and when it does happen, their deviations from their proper positions are similar to those of the upper. When the upper cuspidati take a wrong position, it is generally in front of the circle of the other teeth, pro- jecting sometimes so as to raise and very seriously annoy the upper lip, causing great deformity. They do, however, occasionally come out behind the arch, and at other times, though in their proper position, they are turned upon their axis. The temporary molars being larger than the bicuspids, it rarely happens that the latter are prevented from acquiring their proper position. Examples, however, of irregularity of arrangement, even of these teeth, are occasionally met with. The molar teeth, with the exception of the dentes sapiential, which frequently take a wrong direction in their growth, deviate still less frequently from their proper posi- tion. With regard to the means for the preven- tion of irregularity, and the appliances necessary to correct it, the reader is re- ferred to Harris's Dental Surgery. Besides the appliances referred to, the Interdental Splint employed by Dr. Bean in the treatment of fractures of the maxillary bones, together with the occipitofrontal bandage, and mental compress used in these cases (for a description of which see Frac- tures of Maxillary Bones), furnish one of the most powerful and efficacious means of correcting irregularities of the teeth that has yet been devised. The method is as follows: After removing all the teeth that require extraction, in order to gain sufficient space, impressions of both dental arches are taken in wax, from which are procured plas- ter casts of the teeth. The irregular teeth are now cut from the cast, and again re- placed, partially or wholly, in their desired position, and a splint constructed, as de- scribed under Fractures of Maxillary Bones. By means of the bandage and compress (there also described), the teeth are forced by degrees into the rubber splint, until the crowns are well into the places prepared for them in the splint. The substance of the splint and its great stability, when ac- curately fitted to the molars, enable the op- erator to employ screws, springs, rubber bands, wooden and vulcanite pins, &c, with the greatest facility ; so that almost any case of irregularity can be made to yield, in a very short space of time, to the power of the appliance. The splint should be made to fit accurately all the molars and bicus- pids.; the regular teeth are thus preserved in their normal position while the others are being moved, which is not the case by the ordinary method of the inclined plane, &c. When the teeth are forced into their proper position, to hold them secure until firmly fixed, Dr. Bean employs a gold plate, swaged to fit the palatine or lingual sur- faces of the teeth, and secured by means of silk ligatures passing around the teeth and through holes iu the gold plate. IRtUGA'TION. In Pathology, the ap- plication of water to the affected part so as to keep it constantly wet ; the uniform flow of liquids over tissues. IRRITABILITY. Irritabilitas ; from irrito, I provoke. The susceptibility, pos- sessed by all living organic tissues, of being acted upon by certain stimuli. IRRITANT. Irritans. That which causes irritation. IRRITATION. Irrita'tio. The condi- tion of an organ or tissue, in which there exists an excess of vital action. IRRITATIVE FEVER. That violent derangement of the system excited by great irritation, as from wounds, ulcers, &c. ISATINE. A compound, formed by digesting blue indigo with water, sulphuric 24 ISC 370 ISO acid, and bichromate of potassa, or by heat- ing it with weak nitric acid. ISA'TIS. A genus of plants of the order Leguminosce. Isa'tis Tincto'ria. Glas'tum. Woad. A plant from which an inferior kind of indigo is prepared. ISCHjE'MIA. From tox^, I retain, and aijua, blood. A morbid suppression of a customary discharge of blood. ISCHiE'MON. Any medicine which arrests or restrains bleeding. ISCHIADIC. Ischiadic. Pertaining to the ischium. ISCHIAG / RA. From ia X iov, the hip, and aypa, a seizure. Ischiatic gout. Also, femoro-popliteal neuralgia. ISUHIAL/GIA. From co X i.ov, and aAyoc, pain. Pain in the hip. ISCHIAS. Hip-gout, or rheumatism of the hip-joint. ISCHIADIC. Ischiadic. A term ap- plied in Anatomy to parts belonging to, or connected with, the ischium, as the ischiatic foramen or notch, and artery ■, which escapes from the pelvis through it. ISCHIO-CAVERNO'SUS. A muscle attached to the ischium and to the corpus cavernosum, called from its office the erector penis. ISCHIOCE'LE. From io X iov, the is- chium, and KTjXr], a tumor. Ischiatic hernia. Ischio-Clitoria/nus. Belonging to the ischium and clitoris. Lsuhio-Clito'rian Artery. A branch of the internal pudic artery, which supplies the two arteries of the clitoris. Ischio-Clitorian Nerve. A branch of the pudic nerve distributed to the clitoris. Iscuio-Clitoride / us. The erector cli- toridis. Ischio-Coccyge / us. The coccygeus mus- cle. Ischio-Femora'lis. The adductor mag- nus femoris. Ischto-Fem / oro-Perone / us. The biceps femoris muscle. Ischio-Perinea'lis. The transversus perinei. Ischio-Prostat/iccs. The transversus perinei. Isohio-Trochanteria / ni. Gemelli mus- cles. ISCHIOPH'THISIS. From ischium, hip, and dicic, a wasting. A wasting of the hip joint. Hip-joint disease. ISCHIO'SIS. Sciatica. Femoro-pop- liteal neuralgia. ISCHIUM. Ischion. From ta X ig, the loin. The lower part of the os innomina- tum. In the foetus, one of the three bones of the os innominatum. ISCHNOPHO'NIA. From ia X vog, slen- der, and uv7], voice. Shrillness of voice ; also, impeded utterance. ISCHNO / TES. Ia X vor?jg, thinness ; lean- ness. Emaciation. ISCHOCENO'SIS. From ia X a, I re- strain, and nevucng, evacuation. A term applied in Pathology to suppression of a natural evacuation. ISCHOCHO'LIA. From ia X a, and X o7, v , bile. Suppression of the biliary secretion. ISCHOLO'CHIA. From io X a>, and ?M X eta, the lochial discharge. Suppression of the lochia. ISCHOME'NIA. From ia X u, and fxrjveg, the menses. Suppression of the menses. ISCHURET'IC. Remedies which re- lieve a suppression of the urine. ISCHU / RIA. From toxu, I restrain, and ovpov, the urine. Retention of the urine. Ischuria Spasmod / ica. Retention of urine from spasmodic contraction of the sphincter of the bladder. Ischuria Spu'ria. A retention of urine occasioned by some disease of the kidney or uterus, which prevents the urine from reaching the bladder. ISaN GLASS. IchlhyocoVla. A very pure form of gelatine. Isinglass Plaster. A neat and unirri- tating substitute for adhesive plaster. # I'SIS NOB'ILIS. Red coral. ISO-. From icog, equal. A prefix de- noting equality, or similarity. ISOCHROMAT'IC. From taog, and XpufJ-a, color. Having the same color. ISOCHRONOUS. From icog, equal, and xpovog, time. Applied to two or more actions performed in an equal length of time, as the pulsations of the arteries in dif- ferent parts of the body. ISOLATED. Insulated; standing by itself. ISOMERIC. From icog, equal, and fiepog, a part. In Chemistry, compounds ITC 371 IVY which agree in composition, but differ in properties. The cyanic and fulminic acids are isomeric compounds of nitrogen, oxy- gen, and carbon. ISOMERISM. The state of an isomeric compound. ISOMORPHISM. State of being iso- morphous. ISOMOR'PHOUS. A term applied in Chemistry to different bodies which have the same crystalline forms, though composed of different elements. ISOP'ATHY, Isopathia. loog, equal, like, and iradog, an affection. A branch of Homoeopathy which recommends the ad- ministration of virus as a remedy, in the same disease by which it is produced. rSOPYRE. From iooq, and ttv P , fire. A black amorphous mineral, sometimes variegated with gray or red spots ; a silicate of alumina, lime, and peroxide of iron. ISOSTEM'ONOUS. In Botany, having an equal number of stamens and pistils. ISOTHERMAL. From caog, equal, and depjUTj, heat. Applied to different bodies and places which have the same average temperature. ISSUE. An artificial ulcer or sore, kept open by inserting a pea or other small body, with a view to relieve irritation or morbid action in a neighboring part. ISTH'MION. Isth'mus. The fauces. ISTHMI'TIS. Inflammation of the fauces. ISTHMODYNIA. Pain in the fauces. ISTH'MUS. Ic-&fiog. In common lan- guage, a narrow neck of land, but in Anat- omy, the narrow strait which divides the cavity of the mouth from the pharynx ; the fauces. Isthmus Hep'atis. The anterior point of the right lobe of the liver ; called, Lobu- lus anonymus. Isthmus of the Thyrotd Gland. A band of fibres uniting the two divisions of the thyroid gland. Isthmus Vieusse'nii. The ridge sur- rounding the remains of the foramen ovale, in the right auricle of the heart. ITCH. The vulgar name for a disease of the skin, consisting of an eruption of small itching vesicles. See Psora. Itch, Baker's. A variety of Psoriasis, consisting of rough, fissured, reddish patches on the back of the forearm, hand, and fingers. Itch, Barber's. See Sycosis. Itch Insect. The Acarus scabiei, or wheal worm ; a minute animalcule, said to be found in or near the pustules of the itch. Itch Weed. Swamp hellebore, a plant of the genus Veratrum. FTER. A passage. Iter ad Infundib'ulum. The foramen commune anterius of the brain. Iter a Pa'lato ad Au'rem. The Eus- tachian tube. Iter a Ter'tio ad Quar'tum Ventric'- ulum. A passage from the third to the fourth ventricle of the brain. Iter Den'tis. A name given by Dela- barre to the alveo-dental canal, a small fora- men immediately behind each of the six front temporary teeth communicating with the cells of the corresponding permanent teeth. ITINERA'RIUM. A conductor; a di- rector. Also, a catheter. ITIS. From tTTjg, bold, rash. A suffix denoting inflammation, as odontitis, peri- ostitis, &c. IU'LUS. A genus of Myriapodous in- sects. FVA. A plant of the genus Teucrium ; ground pine. Iva Frutes'cens. Marsh elder •, high- water shrubs ; used in Mexico as a febrifuge. Iva Pecanga. See Smilax Sarsaparilla. PVORY. The tusk of the male elephant. It is of a uniform, close texture, and under the microscope, exhibits a structural ar- rangement similar to that of dentine. Ac- cording to Retzius, it is of a tubular struc- ture, butit has also been shown to be cellular. It contains about 66 per cent, of phosphate of lime with a small trace of carbonate of at present is seldom employed for that pur- pose. Ivory Black. Animal charcoal. IVY. A plant of the genus Hedera, which creeps along the ground, or rises on trees or the sides of houses. Ivy, Ground. A plant of the genus Glechoma. It has a strong smell and slightly aromatic taste. JAM 372 JAW IX'IA. A varix. Also, Viscum Album, which see. IX / US. A plant of the genus Galium. IX'YOMYELI'TIS. Inflammation of the spinal cord in the lumbar region. IX' YS. The region of the ilia, flanks, or loins. JACA INDICA. Thymus mastichina. The common herb mastich. JACEA. Viola tricolor. Pansy. A genus of plants of the order Composites. JACIN'THUS. Hyacinthus. JACK. In Botany, a species of bread- fruit tree, the Tsjaca, or Actocarpus integri- folia. JACOB^EA. Aplantofthegenus Sonecia. JACOB'S MEMBRANE. Jacobi Mem- brana. A thin membrane covering the ret- ina. JACOBSON'S NERVE. The tym- panic branch of the petrous ganglion. JACTITATION. Jaclita'tio. Inquie- tude ; restlessness. JAI/AP. Jalapa. Convolvulus jalapa. The root of the Ipomcea jalapa. a valuable purgative. Dose gr. x, with calomel gr. x. JALAPA ALBA. White jalap. JALAPIN. A substance which com- poses about nine-tenths of jalap resin. The other tenth is jalapic acid. JAMAICA BARK. Caribbean bark; one of the false cinchona barks. Jamaica Kino. An astringent extract prepared from the bark of the Cocoloba uvifera. Jamaica Pepper. The fruit of the Eu- genia pimento :•; allspice. Jamaica Spirit. Rum. JAMAICIN'A. An alkaloid found in the cabbage bark tree, the Andira inermis, of the West Indies. JAMES'S ANALEPTIC PILLS. Pills composed of equal parts of James's pow- der, ammoniacura, and the aloes and myrrh pills, beat up with tincture of castor. James's Powder. A fever powder, sup- posed to be the same as the antimonial powder. JAMESONITE. A steel-gray ore of an- timony and lead, named after Professor Jameson. JAMESTOWN WEED. A plant of the genus Datura; the Datura Stramonium. JANITOR. The pylorus. Also, a door- keeper. JANITRIX. The vena port®. JAPAN EARTH. Catechu, an extract from the Acacia catechu, a tree of India; also called Terra japonica, from its being supposed to be a mineral production. Japan Sago. The fecula obtained from the Cycas revoluta, and other species. JAPONIC ACID. An acid resulting from the absorption of oxygen from the air by catechu when alkalies or alkaline car- bonates are present. JASMIN. See Jasminum Officinale. JAS'MINUM. A genus of plants of the order Jasminece. Jasminum Arab'icum. Coffea Arabica. Jasminum Officinale. Jessamine. The essential oil has been used in paralytic and rheumatic affections. JASPACHA'TES. Agate jasper. JAS'PER. A silicious mineral of vari- ous colors ; a species of quartz. JA'TRO PHA. A genus of plants of the order Euphorbiaceoz. Jatropha Cdr / cas. The species which affords the physic nuts of the shops. They abound in an acrid purgative oil. Jatropha Elastic. Caoutchouc. Jatropha Man / ihot. The root of this species is made into a kind of bread by the natives of Africa and the West Indies. It also yields a large quantity of starch, known by the name of tapioca. Jatropha Mcltif'ida. The seeds of this species, called purging nuts, give out an oil similar to that of the Jatropha curcas. JAL^NDICE. A disease arising from hepatic obstruction. See Icterus. Jaundice, Black. See Melaua. JAW. Maxilla. JEJ 373 JUG Jaw, Lower, Anchylosis of. See Anrhylosis of Lower Jaw. Jaw, Lower, Dislocation of. See Dis- location of Lower Jaw. Jaw, Lower, Fractures of. See Frac- tures of Maxillary Bones. Jaw, Lower, Immobility of. This may result from anchylosis, or from inflamma- tion and adhesion of the gums, or from con- traction of the muscles. It is particularly liable td occur after mercurial salivation which has resulted in necrosis and exfolia- tion of the alveolar processes. JAWS, MORBID GROWTHS OF. Both the upper and lower jaws are subject to a variety of morbid growths, depending, says Mr. Liston, for their differences of structure "somewhat" upon the tissue in which they originate, " as the gum, the membranes of the teeth, the periosteum of the alveoli, the surface or the internal structure of the bones, or the membranes lining their cavities." All these different parts, from external injury, or, according to Dr. Koecker, from some " ac- cidental excitement or peculiar irritation," may become the seat of tumors of every size and consistency, both small and large, hard, soft, benign and malignant, and many of them have their origin traceable to dental irritation arising either from disease, irregu- larity of, or badly performed operations on. the. teeth. The most common of these morbid growths are epulis, fibrous, fibrocartilaginous, sar- comatous, osteo-sarcomatous and fungous tumors. JECORA / RIA. Marchantia polymorpha. JECTIGA'TIO. A species of epilepsy or convulsion. JE'CUR. The liver. JEFFERSO'NIA. A genus of plants of the order Berberidacece ; so called iu honor of Thomas Jefferson. Jeffersonia Diphyt/la. Yellow root ; a perennial herb possessing acrid and bitter properties. JEF'FERSONITE. A species of pyrox- ene found in New Jersey. JEJU'NITAS. Hunger. JEJUNl'TIS. Inflammation of the jejunum. JEJU / NUM. From jejunus, empty. Jejunum intestinum. That portion of the small intestine comprised between the du- odenum and ileum. So called because it is found empty or nearly so, in the dead body. JELLY. A solution of gelatine when cold. Also various compounds resembling this. Jelly, Vegetable. The recently ex- pressed juice of certain fruits, as the cur- rant, boiled with sugar. JERUSALEM ARTICHOKE. The com- mon name of Helianthus tuberosus. Jerusalem Oak. A plant of the genus Chenopodium. Jerusalem Oak, American. Cheno- podium anthelmin'ticum. Wormseed; stink- weed. Jerusalem Sage. A plant of the genus Pulmonaria. JER / VIN. A new base discovered in the rhizoma of Veratrum album. JESSAMINE. The popular name of certain species of Jessaminum, a genus of plants. JESUIT'S BARK. Cinchona bark.' Pe- ruvian bark. JET. A mineral; a variety of lignite of a jet black color. JEWELLERS' PUTTY. A polishing composition consisting of ignited and finely powdered oxide of tin. JEWELL'S CALOMEL. Calomel washed from corrosive sublimate by causing it, in a state of vapor, to come in contact with steam in a large receiver. JIGGER. Chique. JOHAN'NITE. Called so in honor of the Archduke John of Austria. A green mineral occurring in minute crystals ; an anhydrous sulphate of uranium mixed with sulphur and copper. JOINT. Articulation. Joint, Contraction of ; Joint, Stif- fened. Anchylosis. JOINTED. Articulated. - JO'VIS FLOS. Crocus. Jovis Glans. Juglans. JUDICATO'RII DIES. Critical days. JU'GAL PROCESS. The zygomatic process. JUGATE OS. The cheek bone. JUGA / LIS. From jugum,, a yoke. Ju- gal. Belonging or relating to the cheek. Jugalis Sutu'ra. The suture which unites the malar bone with the maxillary. Also, the sagittal suture. JUL 374 JUN JUGLANDA'CEvE. A small, natural order of Exogenous trees distributed throughout the temperate parts of North America and Asia. It includes the Wal- nut and Hickory. A valuable oil is ob- tained from some of the species. The bark is purgative. JU'GLANS. A genus of plants of the order Juglandacece. It is a mild cathartic resembling rhubarb in its action. Juglans Cine'rea. Butter-nut. White walnut. The bark, given in extract or de- coction, is a pleasant and mild cathartic, and has been much used in dysentery. Juglans Ni'gra. Black walnut. The bark of this species is an acrid styptic, and is seldom used medicinally. The rind of the unripe fruit has been recommended for the removal of tetter and ringworm, and in de- coction has been used as a vermifuge. Juglans Re / gia. The English walnut. This affords a sweet, clear juice, said to be valuable in disease of the lungs. The young fruit, bruised and formed into a conserve, is a mild purgative, and the rind is supposed to be anthelmintic. JUG'ULAR. JuguWris ; from jugu- lum, the throat. Relating to the throat. Jugular Fossa. A depression in the petrous portion of the temporal bone, lodg- ing the origin of the jugular vein. Jugular Veins. Two veins, an external and internal, situated on the lateral part of the neck. The two unite, and form with the subclavian vein, the superior vena cava. JU'GULUM. The throat. JU'GUM PE'NIS. A compress for the urethra, formerly used to prevent the escape of urine in cases of incontinence. JUICE. The sap of vegetables, also the fluid part of animal substances. Juice Green. Sap green. A coloring matter obtained by fomentation from the un- ripe berries of Rhamnus catharticus. JUJUBE. Jujuba. The Zizyplius ju- juba ; a tree that furnishes the gummy ex- tract from which jujube paste is formed. Jujube Paste. A paste formed with gum arabic and sugar dissolved in a decoction of the fruit of the Zizyphus jujuba or jujube. JU / LEP. A name formerly applied in Pharmacy to medicinal mixtures, as the camphor julep, mistura camphorce, &c. JULY-FLOWER. Dianthus caryophyl- lus, or clove pink. JU'LUS. Julos. Iov/Mg. The down upon the chin of youths, preceding the beard. JUNCA'CE^E. A natural order of Endo- genous herbaceous plants. JUN / CUS. A genus of plants of the order Juncaceos. Juncus Odora'tus. Andropo / gon schce- nan'ihus. Juncus aroma'ticus. Sweet rush. An infusion of the roasted leaves is em- ployed in India as a stomachic. JUNGERMANNIA'CE^E. A very small natural order of cryptogamic plants. JUNGLE FEVER. A malignant remit- tent fever occurring in the jungle districts of India. JUNIPER. See Juniperus Communis. Juniper Berries. The fruit of the Juni- perus communis. The berries have a sweet- ish terebinthinate taste and aromatic odor, and possess diuretic properties. They are used in the manufacture of gin. Juniper Resin. A resinous substance which exudes from the Juniperus com- munis. It was supposed to be identical with sandarach. JUNIP'ERUM VI'NUM. Wine im- pregnated with juniper berries. JUNIPERUS. Juniper. The berries of Juniperus communis. Also, a genus of plants of the order Pinaceos. Juniperus Communis. The juniper tree. Juniper fruits and tops. Diuretic, carmiua- tive, and diaphoretic. Dose, 9j to £ss. Dose of the oil, gtt. v to xv. Juniperus Lycia. A plant which was supposed to afford the olibanum, or true frankincense. Juniperus Oxycedrus. A European tree from which is obtained by destructive dis- tillation, a liquid tar, the empyreumatic juniper oil, which is used externally in various chronic diseases of the skin. Juniperus Sabi / na. The savin tree ; an evergreen shrub, indigenous in the south of Europe and Asiatic Russia. A volatile oil is obtained from the tips of the branches and investing leaves by distillation, power- fully stimulant and supposed to act specially upon the uterus. Dose, gr. v to x of the powder, of the infusion f 5J ; of the oil two to five drops. Juniperus Virginia'na. Red cedar. KAK 375 KAL The leaves of this species have medicinal properties similar to those of the Sabina, but are less efficient. They have a bitterish taste and are sometimes used in domestic practice for the expulsion of worms. JUPITER. Tin. JURIBALI A tree of Asia, the bark of which is said to be febrifuge. JURISPRUDENCE, MEDICAL. Ju- rispruden'tia medicalis ; from jus, juris, law, and pritdentia, knowledge. Sometimes erroneously used as synonymous with foren- sic medicine; but at present generally re- stricted to a knowledge of the laws which regulate medical education and practice. JUS. Animal broth. Soup. Jus Bovi'num. Beef tea. Jus Coagula'tum. Jelly. JUSTFCIA. A genus of plants of the order Acanthacece. Justicia Adhato'da. A plant of Cey- lon, supposed by the natives to possess the power of expelling the dead foetus. Justicia Ecbo / lium. Carim curini. A Malabar plant; the roots and leaves are said to possess lithontriptic properties. Justicia Pectora / lis. A West India plant. JUVANS. Juvan'tia; from jvvo, to as- sist. Means, medicinal or otherwise, which contribute to the relief or cure of a disease. JUVENESCENT. Fromjuvenis, young. Becoming young. JUXTAPOSITION. From juxta, near to, and ponere, positum, to place. Placed near to, or in contiguity, as the parts of a substance; application to the exterior; ac- cretion, a mode of increase peculiar to minerals, which consists in the successive application of new molecules upon those that constitute the primitive nucleus. K. K. This letter was formerly employed to designate a compound of gold. KA'DUA. A genus of plants, called so in memory of Mr. Kadu, of the order Cinchonacece. K^EMPFE'RIA. A genus of plants of the order Zingiber acece. K^empferia Galan'ga. The plant which affords the spurious galanga root. K^empferia Rotun / da. The plant which, according to some, produces the long zedoary, radix zedoarice rotvndce. The roots are stimulant and carminative. Dose, 9j to gj of the powder. See Zedoary. KAF'AL-TREE. The Balsamodendron, a tree, native of Africa KAJEPUT. Cajeput. KAKOXENE. See Cacoxene. KAKO'DYLE. Kak'odule; from kgkoc, bad, and odvlrj, smell. In Chemistry, a compound radical body. It is a clear liquid, but when cooled, it crystallizes into large square prisms, having the appearance of ice. It has an insupportably offensive smell, and emits a highly poisonous vapor. C 4 H 6 As 2 -Kd. Kakodyle, Chloride of. A volatile and exceedingly fetid liquid, emitting a strong irritating vapor, obtained by heat- ing a compound of oxide of kakodyle and bichloride of mercury with hydrochloric acid Kd Cl-C 4 H 6 As 2 , Cl,-Kd CI. Kakodyle, Protoxide of. When pure, a limpid ethereal liquid, crystallizing in white scales of a satin lustre. It has a nauseous taste and offensive smell. C 4 H 6 As 2 , 0-KdO. KAKODYLIC ACID. An inodorous, brittle, crystalline substance of a glossy lustre, formed by the gradual oxidation of the protoxide of kakodyle. Kd 3 -C 4 H 6 As 2 , 3 . KALEIDOSCOPE. From nalog, beau- tiful, eidoq, form, gkotteo, I view. An opti- cal instrument invented by Sir David Brew- ster, which, by an arrangement of reflecting surfaces, exhibits an innumerable variety of beautiful colors and symmetrical images. KA / LI. The Arabic name of a plant, a species of Salsola or glasswort, the ashes of which are used in making glass; hence the word alkali, which originally signified KAE 376 KEE the residuum obtained by lixiviating the ashes of that plant, but now used to desig- nate potash, soda, and ammonia. Kali Aceta'tum. Acetate of potash. Kali Aera / tum. Carbonate of potash. Kali Arsenica'tum. Arseniate of potash. Kali Citra / tum. Citrate of potash. Kali Pr^epara'tum. Subcarbonate of potash. Kali Ptj / rum. Potassa fusa. •Kali Sulphura'tum. Sulphuretum po- tassii. Kali Tartariza'tum. Tartrate of pot- ash. Kali Vitriola'tum. Sulphate of po- tassa. KA / LITJM. Potassium. KAI/MIA. A genus of shrubs of the order Ericaceae. Kalmia Angustifo'lia. Sheep laurel. Dwarf laurel, a poisonous plant. Kalmia Glauca. Swamp laurel; also poisonous. Kalmia Latifo'lta.. Laurel. Moun- tain laurel. Broad-leaved laurel. Calico- bush. The leaves are narcotic, and in over- doses, produce nausea, vertigo, and difficult respiration. KAMPHUR. Camphor. KA / OLIN. The Chinese name for por- celain clay. It is disintegrated and decom- posed felspar, and consists of nearly equal proportions of alumina and silica. It is of a yellowish, or reddish-white color, infusi- ble in the porcelain kiln, and found in the United States, at Fairmount, near Philadel- phia ; near Wilmington, Del.; at Montonk, Vt. ; and at Washington, Ct. It formerly constituted an important ingredient in por- celain teeth, but at present is much more sparingly used. See Porcelain Teeth. KAPNOMAR. Capnomor. A trans- parent, colorless, oily liquid, with the odor of rum, obtained from the heavy oil of tar, resulting from the destructive distillation of wood. KAR'PHOLITE. From Kapfog, straw, and ?a$og, a stone. A mineral of a yellow- ish color occurring in stellated crystals, and consisting of silica, alumina, and oxide of magnesia. KARPHOSIDER'ITE. A term applied in Mineralogy to hydrated phosphate of iron of Labrador. KASSANDER. The Convolvulus pan- duratus, or wild potato vine. KAS / SU. A black astringent extract prepared from the seeds of the Areca catechu. KAU'RI RESIN. Cowdie gum. KEEL. A term applied in Botany to the petals of a papilionaceous corolla, from their resemblance to the keel of a ship ; in ConcJiology, to the longitudinal prominence in the shell of the Argonauta ; and in En- tomology, a sharp longitudinal elevation upon the inferior surface of the insect. KELOIDE. Kalo'ed. Ktj'at/, a tumor, and etfog, a form. French name for a disease resembling cancer, or scirrhus, also termed cancroide and scirrhoide. KELP. Impure soda obtained from wood. KENNELWORT. A plant of the genus Scrophularia. KER'ATES. From Kepag, horn. A term applied in Mineralogy to an order of earthy minerals, which have a horny appearance. KERATFAS1S. Ceratia'sis ; from Kepag, horn. A term applied in Pathology to a horn-like excrescence, sometimes developed on the forehead or temples. KERAT'ONYXIS or CERAT'ONYX- IS. Kepag, a horn, and vvccu, to punc- ture. An operation by which the crystalline is depressed by a needle passed through the cornea. KERAT'OPHl^TE. From Kepac, a horn, and c, a stone. A species of zeolite of LAB 379 LAB a pearly lustre, and of a yellowish or green color, found in the Pyrenees. KOUSSO, KOOSSO, or CUSSO. The flowers of the Brayera anthelmintica, used as a remedy against Taenia, or tape-worm. KRA ME'RIA. A genus of plants of the order Polygalacece. Rhatany. Kramekia Ix'ina. A species found in the West Indies and Brazil, said to possess the same properties as rhatany. Krameria Trian / dra. Rhatany, a powerful astringent tonic, also diuretic and detergent. Dose, ^ss to gj, in powder. KRAMERIC ACID. An acid obtained from the root of the rhatany. KREASOTE. Creasote. KREATIVE. See Creative. KRY'OLITE. See Cryolite. KUNDAH OIL. Tallicoonah oil. An oil procured from the seeds of the Carapa Tonloiiconua. KUP'FERNICKEL. A German name for an ore of nickel of a copper color; sul- phuret of nickel. KY'ANITE. From Kvavog, blue. A mineral occurring in long radiating crystals of a clear blue or bluish-white color, and consisting of silica and alumina. KY / DIA. A genus of plants of the order Sterculacece. KYES'TEIN, or KYES'TEINE. Kveo>, to be pregnant, and eadrjg, a covering. An albuminoid substance floating as a pellicle on the urine of pregnant women ; connected also with the lacteal secretion. With other symptoms it is considered a valuable aid in the diagnosis of pregnancy. KYLLO'SIS. From nvllog, crooked. Club-feet. KYMOGRAPITION. An instrument which shows the relation between the pulse- wave and the undulations produced by respiration. KYNANCHE. Cynanche. KYST. Cyst. KYSTHOS. The vagina. KYSTOTOME. See Cystotome. L. The symbol for lithium. LABARRAQUE'S SOLUTION. Liquor Soda? Chlorina'tce. A disinfecting liquid, consisting chiefly of a solution of chloride of soda, as it is commonly called. It consists of chloride of lime fej, carbonate of soda ftij, water Cong. iss. Used in the same cases as chloride of lime. Internally 10 drops to a fluid drachm, for a dose Diluted ■with water it is an excitant and disinfect- ant. In Denial Surgery it is used to bleach discolored teeth. LABDANUM. See Ladanum. LABEL'LUM. A little lip. In Botany, the lower lip of a labiate corolla. LA / BIA. The plural of labium, a lip. In Anatomy, the lips. In Entomology, a genus of Coleopterous insects, in which the antenna?, are twelve-jointed. Labia Puden'di. The lips of the vulva. Labia Pudendi Mino / ra. The nymphae LABIAL. Labia'lis. Pertaining to the lips. Labial Ar / teries. The coronary arte- ries of the lips. Labial Glands. The muciparous folli- cles on the inner surfaces of the lips be- neath the mucous membrane. LABIA / LIS. The orbicularis oris. LABIA'T^E. A natural order of plants, characterized by a two-lipped monopetalous corolla. The species of nearly all the gen- era are herbs or shrubs, generally fragrant and aromatic, as mint, thyme, lavender, sage, &c. LABIATE. Labia'tus. Having lips. LABIDOMETER. Aaftig, a forceps, and fzerpov, a measure. An instrument for as- certaining the dimensions of the child's head in the pelvis, &c. LABIO-DENTAL. Pertaining to the lips and teeth. LABIM'ETER. A scale applied to the handles of obstetrical forceps to indicate the distance between the blades while these are in the uterus. LAC 380 LAC LABTS. Forceps. LA'BIUM. In Anatomy, the lip of an- imals. In Entomology, applied only to the lower lip. The lip. Labium Lepori'num. Hare-lip. Labium Puden'di. The side of the orifice of the vagina, exterior to the nymphae. LABOR. Parturition. LABORATORY. Laborato'rium ; from labor are, to work. A room or place for performing chemical and pharmaceutical operations. Laboratory, Dental. See Dental Lab- oratory. LABORIOUS LABOR, An obstetrical term denoting a parturition attended with more than usual difficulty and pain. LABRADOR FELSPAR. A beauti- ful variety of richly iridescent felspar found on the coast of Africa. LABRUM. The extremities of the lip, but applied only in Entomology to the up- per lip. LAB'YRINTH. Labyrinth' us. In An- atomy, an assemblage of parts, consisting of several cavities, which constitute the in- ternal ear. LAC. Milk. Also, a resinous substance which exudes from the twigs or extreme branches of several trees in the East In- dies, in the form of a milky fluid, in conse- quence of the punctures made by an insect of the genus Coccus. The varieties known in commerce are stick lac, seed lac, and shell lac. Lac Ammoni'aci. Ammoniac mixture. Lac Amyg'daL-E. Almond emulsion. Lac Asafoet / id.e. Asafoetida mixture. Lac A / vis. See Albumen Ovi. Lac Dye. Lac lake; cake lac. The coloring matter extracted from stick lac. Lac Guaiaci. Guaiac mixture. Lac Lun^e. A white substance resem- bling chalk, consisting almost wholly of alumina saturattd with carbonic acid. Lac, Seed. The small irregular parti- cles broken from the twigs of the East In- dian trees, the Croton lacciferum. Ficus Lndica, and Ficus religiosa, which afford gum-lac. Lac, Shell. Seed or stick lac, deprived of its soluble coloring matter, melted, strained, and poured upon a smooth, flat surface to harden. It is of a slight or dark brown color, inclining slightly to red or yellow; hard, brittle, inodorous; insoluble in alcohol, but soluble in water. Lac, Stick. The resin in its natural state as taken from the tree, incrusting the small twigs around which it was concreted. Lac Scl'phuris. See Sulphur Praecipi- tatum. Lac Yacci'num. Cow's milk. LACCA. See Coccus Lacca. LACTIC ACID. A peculiar acid ob- tained by Dr. John, from stick lac. LAC'CINE. A substance intermediate between wax and resin, recently discovered in shell lac. LACERATED. Torn. LACERATION. Lacera'tio. The act of being lacerated or torn ; also the appear- ance of being lacerated. LACERT1 CORDIS. Columnae carnea-. LACER/TIM. Like a lizard. Lac'erum For'amex. Plural, Lac' era Foram'ina. Two irregular openings be- tween the occipital and temporal bones. LACHXAX'THES. A genus of plants of the order Ilaemodoracea. Lachnanthes Tixcto'ria. Gyrothe'ca tinctoria. This plant has a red root pos- sessing mild astringent and tonic properties. LACH'RYMA. A tear. LACH'RYMAL. Lachryma'lis ; from lachryma, a tear. Belonging or pertaining to tears. Lachrymal Apparatus. The organs which secrete and conduct the tears, as the lachrymal gland, the puncta lachrymalia, ducts, fcc. Lachrymal Ap/tery. A branch of the ophthalmic artery distributed to the lachry- mal gland. Lachrymal Boxe. The os unguis. Lachrymal Canal. A canal in the outer wall of the nasal fossae, lined by a continuation of mucous membrane from the lachrymal sac, and serving to convey the tears into the nasal fossa?. Lachrymal Caruncle. Caruncula lach- rymalis. Lachrymal Duct. The excretory duct of the lachrymal gland. Lachrymal Fossa. A depression at the upper part of -the organ which serves to lodge the lachrymal gland. Lachrymal Gland. A glomerate gland LAC 381 LAC situated in the lachrymal fossa, which se- cretes the tears. Lachrymal Groove. A bony channel situated at the anterior part of the orbit, and serving as a lodgment for the lachry- mal sac. Lachrymal Hernia. A tumor of the sac which prevents the tears from entering the canal. Lachrymal Nerve. A branch of the ophthalmic nerve distributed to the lachry- mal gland and upper eyelid. Lachrymal Puncta. Two small orifices situated just within the ciliary margins of the eyelids, and continuous with the lachry- mal ducts. LACHRYMA'TION. Lachryma'tio. In- voluntary discharge of tears. Also profuse weeping. LACINIA'TED. Lacinia'tus. Jagged; fringed. LACIN'ULA. A term applied in Bot- any to the abruptly inflexed acumen of each of the petals of an umbelliferous flower. LAC'MUS. Litmus. LACON'ICUM. A stove or sweating room ; a vapor bath. LAC / Q(JER. A yellow varnish, used on brass and other metals, consisting of a solu- tion of lac in alcohol, colored with gam- boge, saffron, and other coloring matters LACTATE. A salt formed by the union of lactic acid with a salifiable base. LACTATION. From lacteo, I suckle, I give milk. The suckling of a young child or animal. LAC /r rEAL. Lac'teus; from lac, milk. A chyliferous vessel. LAC'TEN. Solidified milk. LAOTES'CENCE. Milkiness ; applied in Botany to the white or yellowish juice which flows from a plant when wounded. LAC'TEUS. Milky; appertaining to milk. Milk-white. LAC / TIC. Lacteus. Applied to an acid obtained from milk. Lactic Acid. An organic acid of great physiological importance. It is found in the muscles, the blood, the intestines, and the gastric juice. By many chemists it is regarded as the active portion of this last- named secretion, and has been recom- mended as a therapeutical agent in atonic dyspepsia on this ground. It plays an im- portant part in organic metamorphoses. It is a syrupy, nearly transparent liquid, of a pale wine color, and a very sour taste. Its specific gravity is 1.212. It is usually ob- tained by decomposing the lactate of iron by alcohol. LACTIFEROUS. From lac, milk, and fero, I carry. That which conveys milk, as the lactiferous vessels of the mamma. Lactiferous Swelling. Tumefaction of the breast from obstruction of one or more of the lactiferous vessels. LACTIF'UGA. Medicines which dry up the secretion of milk. LAC/TIN. Sugar of milk. LAC / TOCELE. Lac, milk, and Krfk^ a tumor. A collection of a milk-like fluid, also termed Galactocele. LACTOMETER. From lac, milk, and fierpov, a measure. An instrument for as- certaining the proportion which the cream bears to the milk. It is a graduated glass tube filled with milk. See Galactometer. LACTU'CA. From lac, milk, called so from its milky juice. Lettuce. Garden lettuce. Also, a genus of plants of the order Aster aceoz. Lactuca Elonga'ta. American wild lettuce. Lactuca Graveolens. See Lactuca Vi- rosa. Lactuca Sati'va. Garden lettuce. It is used as an article of food, and is aperient and anodyne. See Lactucarium. Lactuca Viro'sa. Lactuca graveolens. The strong-scented lettuce. LACTUCA'RIUM. The inspissated juice of Lactuca sativa, or Garden Lettuce. It resembles opium in its action, but is milder. Dose, gr. j to x, or more, in pill or syrup. LACTUCEL / LA. A plant of the genus Sonchus. LACTUCIC ACID. A peculiar acid dis- covered in the milky juice of the Lactuca virosa. LACTUM / INA. Lactucim'ina. Infan- tile thrush has been so termed from the sup- position that it was caused by a vitiated condition of the milk. LAC / TYL. The hypothetical radical of lactic acid. Its formula is C 6 H 5 2 . The addition of three parts of oxygen converts it into lactic acid. L^M 382 LAM LACU'MA. A genus of plants of the order Sapotacece. Lacuma Mammo'sa. A tropical tree which bears a fruit called marmalade, some- what resembling the sapodella plum. It also yields a caustic juice possessing emetic properties. LACU / NA. From lacus, a channel. In Anatomy, the mouth of the excretory duct of a mucous gland; in Botany, an air-cell in the vegetable tissue. LACU'NA MAG'NA. A small open- ing or hollow larger than the rest, situated near the fossa navicularis of the male urethra. LACUNAR OR'BIT^E. Roof of the orbit of the eye. LACUNO'SUS. Dotted; pitted. LACUS LACHRYMA'LIS. The lachry- mal sac. Lacus Lachryma / kum. The small space in the inner angle of the eye toward which the tears flow. LAD / ANUM. Laudanum. The resinous juice which exudes from the Cistuscreticus. It has a blackish-green color, bitter taste, and agreeable odor. Used as a stomachic. LADIES' MANTLE. A plant of the genus Alchemilla. Ladies' Slipper, Yellow. A plant of the genus Cypripedium. Ladies' Smock. A plant of the genus Cardamine. LA / DLE. In Mechanical Dentistry, a large iron spoon or cup with a long handle, used in melting zinc, tin and lead for cast- ing met'ilic models, used in striking up or swaging bases of gold, silver or platina for artificial teeth. LADY-BIRD. Lady-bug. Coccinella septempunctata. This insect was at oue time supposed, in Germany, to possess powerful autiodontalgic virtues ; it is highly recommended for this purpose by Dr. Fred- erick Hirsch, dentist to several German courts. His method of applying them con- sists in crushing them between the thumb and forefinger, rubbing them until a warmth is felt; then with the finger and thumb, when thus prepared, rubbing the tooth and gum around it. L^E'MODIPODS. LcBinodip'oda ; from Acufiog, throat, and novq, foot. An order of Crustaceans in which the head joins the first segment of the throat, and gives sup- port to the four anterior feet. L.EMOPARAL'YSIS. Paralysis of the organs of deglutition. L^E'MOS. Pharynx. L^MOSCHIR'RUS. Cancer of the pharynx or oesophagus. L^EMOSTENO'SIS. Constriction of the oesophagus. LtETIFICAN'TIA. From loetijico, I make glad. Medicines formerly employed as cordials for dispelling melancholy. LAGET'TA. A genus of plants of the order Hymelacece. Laget/ta Lintea'ria. The 'Jamaica lace-bark tree. The bark is caustic, and has been used as a substitute for mezereon. LAGNE'SIS. From 7uvrf, the voice. The sound of the voice in health as heard through the stethoscope when placed over the larynx. LARYNGOSCOPE. An instrument on the same principle as the ophthalmo- scope, which, by means of a mirror, enables the larynx to be inspected. LARYNGOSCOPY. From laryngo, and GKOTrecj, to view. Inspection of the larynx. LAR'YNX. A short tube of an hour glass shape, situated at the fore part of the neck between the base of the tongue and trachea. It is composed of cartilages, liga- ments, muscles, nerves, bloodvessels, and mucous membrane, and constitutes the ap- paratus of voice in the higher vertebrata. The cartilages of the larynx are the thyroid, the cricoid, two arytenoid, and the epiglot- tis. The ligaments of the larynx are numer ous and serve as bonds of union to the cartilages. The muscles are the crico-thyroid, the crico arytenoideus posticus, the thyro-aryt- enoideus, and the arytenoideus. The opening into the larynx is triangu- lar, and bounded in front by the epiglottis, behind by the arytenoideus muscle, and on each side by a fold of mucous membrane, extending from the side of the epiglottis to the point of the arytenoid cartilage. The larynx is divided into two parts. The upper portion is broad above and narrow below ; the lower portion is narrow above and broad below. The larynx is lined by mucous mem- brane, which forms in its ventricles a ccecal pouch, called the sacculus laryngis. The larynx is supplied with arteries from the superior and inferior thyroid, and the nerves which go to it are derived from the superior laryngeal and recurrent laryngeal branches of the pneumogastric. LARYNGOPH'THISIS. Aapvy?, the larynx, and