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TABESCENT

Wasting, or becoming wasted, or emaciated.

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TACCA

T. pinnatifida, Forst, yields a kind of arrow-root.

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TACHYTOMY

The art of operating quickly.

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TAHR

A material obtained by the 92 destructive distillation of various substances, particularly wood and coal. The name is commonly applied to wood-tar. See Pix liquida. T.-acne. See Acne picealis. T., Coal, a dark, highly complex, semiliquid substance obtained by the destructive distillation of coal. T.-colors. See Pigments, Conspectus of. T., Gas. See T., Coal. T., Juniper. Synonym of Oil of Cade. T., Oil of, a highly complex, volatile, oily liquid obtained in the distillation of wcod- tar. T.-ointment, a mixture of equal parts of tar and suet. Unguentum picis liquid#. T.-water, an infusion containing one part of tar to four of water. T., Wood, a thick, shining, black liquid obtained by the distillation of the wood of various species of conifers. Tarantism A choreic affection, largely a play of the imagination and often feigned, ascribed to the bite of a tarantula. It is perpetuated by force of tradition along certain parts of the Mediterranean coast. According to popular fancy, the affection was cured by music and dancing. Tarantula Same as Tarantism. Tarassis Hysteria in the male. o Taraxacerin A slight conjunctivitis, or eye-trouble. Tardieu’s Spots. Ecchymotic stains of the lung- tissue indicative of death from asphyxia. Tared Allowed for as a tare or deduction; having the weight previously ascertained, as a Tared Filter. The teim is used in pharmacy and chemistry. Tarichentae See Paraschistes. Tarinus, Homy Band of. See Band. T., Foramen of. See Foramina, Table of. T., Pons of. See Pons. T., Space of, the posterior perforated space at the base of the brain. Tarnier, Sign of. A sign of inevitable abortion. It consists in the effacement of the angle between the upper and lower uterine segments. This angle always exists in the pregnant uterus from an acute anteflexion, but as the escaping ovum descends the pressure thus produced causes the uterus to straighten out, and the angle disappears. Tarropetrolin A compound of wood-tar and petroleum, recommended as a salve in various skin- diseases. Tarry Of the nature of tar. T. Stools. See Melena. Tarsal Pertaining to the bones of the instep. T. Amputation, partial removal of the foot through the tarsus. T. Cartilage, the cartilaginous layers in the free edge of each eyelid. T. Cyst. See Chalazion. T. Ophthalmia. See Blepharitis. Tarsalgia Any pain, especially one of gouty character, in the tarsus. Tarsectomy Excision of tarsal bones. Tarsectopia Tarsal displacement. Tarsen Belonging to the tarsus in itself. Tarsitis See Blepharitis. Tarso- A prefix denoting connection with or relation to the tarsus, as tarsometatarsal Synonym of Podarthrocace. Tarsocheilopiaslic Rupture of the tarsal cartilages. Tarsomalacia Softening of the tarsal or palpebral cartilages. Tarsometatarsal I. Both tarsal and metatarsal; relating to the tarsus and the metatarsus. 2. In biology, a bone that unites the metatarsal and the tarsal bones in itself. T. Amputation, partial removal of the foot, as in Lisfranc’s Amputation. Tarsophalangeal Pertaining to the tarsus and the phalanges. Tarsophyma Any morbid growth or tumor of the tarsus. Tarsoplasia Same as larsoplasty. Tarsoplasty Plastic surgery of the eyelid. Tarsorrhaphy An operation upon the eyelids to diminish the palpebral opening, for ectropion, lagophthalmos, etc. Tarsotarsal Between the tarsal bones; as an amputation through the foot-Chopart’s amputation. Tarsotibial Same as Tibiotarsal. Tarsotomy I. Operation upon the tarsal cartilage in cases of entropion. 2. Operation on the tarsus of the foot. T., Cuneiform, removal of a wedge-shaped piece of any of the tarsal bones. Tarsus The instep, consisting of the calcaneum, or os calcis, the astragalus, cuboid, scaphoid, internal, middle, and external cuneiform bones. Also, the cartilage of the eyelid called the tarsal cartilage, which properly is dense connective tissue forming the support of the lid and giving it firmness and shape. In biology, the shank of a bird; the foot of an insect. Tartar I. Argol. A popular name given to the acid potassium tartrate, which is a natural product of certain fniits, especially the grape, being deposited on the inside of wine- casks as a whitish or reddish crystalline crust, the impure super-tartrate of potassium. 2. The deposit of earthy or calcareous matter sometimes seen upon the teeth. T., Cream of, purified argol or acid potassium tartrate. T. Emetic, the tartrate of antimony and potassium. See Antitnony. Tartareous Having a rough, crumbling surface. Tartaric Having the . nature of tartar. Also, applied to the acid derived from tartar. T. Acid. See Acid, Tartaric. Tartarized Impregnated with tartar, or with tartaric acid. T. Antimony, tartrate of antimony and potassa. T. Iron, iron tartrate. Tartrate The generic name of salts formed by the action of tartaric acid upon a base. T. of Antimony and Potassium. See Antimony. T. of Potash and Soda. See Potassium. Tartrazin See Pigments, Conspectus of. Tartronic Acid A preserved meat prepared in South America by cutting the meat in thin slices, then dipping it in brine and partially drying Taste Withoi taste. T. Ague-drop, a solution of a soluble salt 0 arsenic, formerly used as a remedy for intenmttei malarial fevers. Tattooing To assist these cinnabar and ultramarine may be used. Mix the colors on a glass plate and impregnate the needles. Electrolysis followed by tattooing is useful in cases of vascular nevi. T. of Cornea, an operation to diminish the unpleasant appearance of leukoma of the cornea by tattooing the same so as to simulate the appearance of the normal pupil and iris. Taubenzecke The German name for an insect, Argas rejlexa, whose sting produces local, and in some cases general edema. See under Parasites A T-shaped bone, such as the epistemum. It is also called T.-bone. Taurin See Acid. Tautomeric Exhibiting tautomerism; a qualification applied to compounds to which two different structural formulae may be rightly attributed. Tautomerism 1. The attribution of two different formulae to one compound. 2. The quality exhibited by those cases in which two structural formulae are possible, while but one compound appears to be obtainable. It i assumed that in such bodies the formulas are susceptible of change from one arrangement to the other. The phenomenon has also been called desmotropy. Tawed Leather See Leather. Taxidermic Belonging to taxidermy. Taxidermy The art of preserving and stuffing the skins of animals, so as to represent the appearance, habits and attitudes during life. axinomy The science of systematic classification. ‘axin The resin of the leaves of the yew-tree, Taxits baccata; also, a poisonous alkaloid reported to have been found in the leaves tnd seeds of the same tree. axiology The science of classification, axis Arranging. A reduction of a prolapsed structure, as a hernia ora uterus, by methodic manipulation without instruments. i axodium The common bald or black cypress of the southern U. >. and Mexico, said to destroy malarial germs. The leaves and seeds are used internally in hepatic diseases. axonomic A genus of cone- bearing trees, the yews. T. baccata, the common European yew-tree. Its leaves and seeds are poisonous and have sedative qualities. ay s Choroiditis, a form of central choroiditis seen in persons in advanced years. Its course is chronic and there occur changes which resemble those observed in albuminuric retinitis. Taya A S. American species of plants said to be exceedingly poisonous, and to be an ingredient of some kinds of curare. Tayuya Thea. The leaves of Camellia thea, a. Chinese evergreen shrub. Tea contains an alkaloid, thein, and tannic acid, boheic acid, gallic acid, gluten, coloring-matter, etc. A decoction of the leaves is a popular astringent, restorative beverage, which produces an exhilarating effect upon the nervous system. Its excessive use causes dyspepsia and various nervous derangements. The properties of tea are due to thein The shredding or arranging of a minute object, with a needle or other suitable instrument, with a view of preparing it for microscopic study. Teat The nipple: a part of the excretory duct of the mammary gland; the mammilla, or papilla. . Technic, Technique A systematic series of manipulative procedures. A formula of operation. Technical Pertaining to any art. Technocausis Mechanical cauterization, such as electrocauterization, moxa, etc., in distinction from the cauterization produced by chemicals. Technology The science or explanation of the terms used in science or art. Tecnology The study or scientific knowledge of childhood, its hygiene, diseases, etc. Tecnoton.a A genus of bignoniaceous plants, mostly climbers, with showy, trumpet-like flowers. T. impetiginosa, the bark is used in lotions for inflamed joints. T. ipe, a Brazilian species; the leaves are used in ophthalmia. T. radicans, common in the United States; is said to be vulnerary and sudorific. Leaves 20 in number, are called milk, temporary, or deciduous teeth. In the adult the permanent teeth consist of 2 Incisors. Canine. Bicuspids. Molars. Wisdom-tooth. THE TEETH OF AN ADULT. The upper section of the illustration represents the upper set, and the lower the lower set. and branches used as dyes. T. subvernicosa, of S. America, is diuretic; others are actively astringent. Tectiform In biology, like a roof or lid. Tectocephalic Pertaining to a roofshaped skull. Tectochrysin A coloring-matter obtained from Poplar Buds. Tectology In biology, structural morphology. T ectona Teak, a tree of the natural order Verbenacea, the East Indian oak. Its wood is valuable for shipbuilding. Its leaves are astringent and the flowers and seeds diuretic. Tectorium Serving as a tectorium, or covering. T. Membrane. See Membrane of Corti. Tectrices Plural of Tec- trix. In biology, the feathers of the w ing- coverts or tail- covert s of a bird, as distinguished from rent iges, and rectrices. T e c t r i x Covering or hiding. Tectrices, the plural, applies to the smaller feathers that cover the quill- feathers, wings, or tail of a bird. Tedium viue See l’ie- dtum. VERTICAL SECTION OF A TOOTH IN THE Teeth A co| ering. The dorsal portion of the crus cerebri, forme by the deep longitudinal fibers, interlaced with transverse and arched fibers. In biology, an outer covering, as of a bud or a mollusc. Tegminal In biology, integumentary. Tegminalia Plural of Tcgminaliiun. In biology, the plates of a tessellated crinoid or other similarly protected animal. ‘ Tegula In I biology, a sclerite covering the base of the fore-wing or the metathoracic spiracle of certain insects. Tegumen Same as tegmen. Tegument In biology, an enveloping or protective coat; a tegmen, or tegmentum. Teichmann’s Crystals. See Hem’in. Teichmann-Neumann Test. See Tests, Table of. ITeichopsia See Tinea. T. pelade. Synonym of Alopecia areata. Teinodynia See Tenodynia. Teissier’s Method. See Phosphates. Tela A web or web-like tissue; a plexus. T. adipusa, adipose tissue. T. araneae. See Spiders’ Web. T. cellulosa, areolar tissue. T. choroidea, the membranous roof of the parts of the third and fourth ventricles of the brain. See Diatela and Metatela. T. epithelialis, epithelial tissue. T. flava, elastic tissue. T. haemelis, lymph-cells and blood-corpuscles, and, also, splenic tissue. T. vas- culosa, the choroid plexus. Telaesthesia See Telepathy. Telangiectasia Dilatation of capillaries, or of the smaller blood-vessels. Telangiectasis See Telangiectasia and Ntzvus vascularis. T. faciei. See Acne rosacea. Telangiectasy Same as Telangiectasia. elangiectatic Relating to or characterized by telangiectasia. T. Warts. See A ngiokeratnma.

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TALIPOMANUS

Deformity ol the hand, analogous to club-foot, club-hand.

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TAMBOR-OIL

A purgative oil from the seeds of Omphalea oltifera, a plant of tropical America.

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TANNIC

Obtained from or containing tannic acid. T. Acid. See Acid J

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TAPINOCEPHALIC

Affected with tapinocephaly. “pinocephalus A subject of tapinocephaly. apinocephaly Flatness of the top of the cranium, ‘apinocranius Lissauer’s term for a skull in which the greatest height of the cranial cavity is from 74.5 to S2.5 per cent, of its greatest length, apinopisthius Lissauer’s term for a skull in which the angle formed between the radius fixus and the line joining the occipital point and the punctum alas vomeris is between 24.50 and 330.

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TARTROPHEN

A combination of phenetidin and tartaric acid. Tashkent Ulcer See Paschachurda.

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TEETH

T., Chiaie A peculiar deterioration of the dental enamel among the inhabitants of the Italian littoral; characterized by the teeth becoming black and destitute of enamel The theory generally received is that the condition is due to drinking water containing volcanic gises and other products. T., Corti

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