| taurodontism | A developmental anomaly involving molar teeth in which the bifurcation or trifurcation of the roots is very near the apex, resulting in an abnormally large and long pulp chamber with exceedingly short pulp canals. Origin: L. Taurus, bull, + G. Odous, tooth (05 Mar 2000) |
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| taurolithocholic acid | <chemical> 2-(((3 alpha,5 beta)-3-hydroxy-24-oxocholan-24-yl)amino)ethanesulfonic acid. A bile salt formed in the liver from lithocholic acid conjugation with taurine, usually as the sodium salt. It solubilises fats for absorption and is itself absorbed. It is a cholagogue and choleretic. Pharmacological action: cholagogues and choleretics. Chemical name: Ethanesulfonic acid, 2-(((3alpha,5beta)-3-hydroxy-24-oxocholan-24-yl)amino)- (12 Dec 1998) |
| tauromachian | Of or pertaining to bullfights. A bullfighter. See: Tauromachy. Source: Websters Dictionary (01 Mar 1998) |
| tauromachy | Bullfighting. Origin: Gr.; bull + fight. Source: Websters Dictionary (01 Mar 1998) |
| tauropine dehydrogenase | <enzyme> Converts NADH + h+ +pyruvate + taurine to nad + tauropine (n-(d-1-carboxyethyl)taurine) Registry number: EC 1.5.1.- Synonym: tauropine-nad oxidoreductase, rhodoic acid dehydrogenase (26 Jun 1999) |
| taurus | 1. <astronomy> The Bull; the second in order of the twelve signs of the zodiac, which the sun enters about the 20th of April; marked thus in almanacs. A zodiacal constellation, containing the well-known clusters called the Pleiades and the Hyades, in the latter of which is situated the remarkably bright Aldebaran. 2. <zoology> A genus of ruminants comprising the common domestic cattle. Origin: L, akin to Gr, and E. Steer. See Steer a young ox. Source: Websters Dictionary (01 Mar 1998) |
| taurylic | <chemistry> Pertaining to, or designating, an acid found of a urine of neat cattle, and probably identical with cresol. Origin: L. Taurus a bull + E. Phenylic. Source: Websters Dictionary (01 Mar 1998) |
| Taussig | Helen B., U.S. Paediatrician, *1898. See: Taussig-Bing disease, Taussig-Bing syndrome, Blalock-Taussig operation, Blalock-Taussig shunt. (05 Mar 2000) |
| Taussig-Bing disease | <syndrome> Complete transposition of the aorta, which arises from the right ventricle, with a left sided pulmonary artery overriding the left ventricle, and with high ventricular septal defect, right ventricular hypertrophy, anteriorly situated aorta, and posteriorly situated pulmonary artery. Synonym: Taussig-Bing disease. (05 Mar 2000) |
| Taussig-Bing syndrome | <syndrome> Complete transposition of the aorta, which arises from the right ventricle, with a left sided pulmonary artery overriding the left ventricle, and with high ventricular septal defect, right ventricular hypertrophy, anteriorly situated aorta, and posteriorly situated pulmonary artery. Synonym: Taussig-Bing disease. (05 Mar 2000) |
| tautochrone | <mathematics> A curved line, such that a heavy body, descending along it by the action of gravity, will always arrive at the lowest point in the same time, wherever in the curve it may begin to fall; as, an inverted cycloid with its base horizontal is a tautochrone. Origin: Gr, for the same + time: cf. F. Tautochrone. Source: Websters Dictionary (01 Mar 1998) |
| tautochronous | <mathematics> Occupying the same time; pertaining to, or having the properties of, a tautochrone. Source: Websters Dictionary (01 Mar 1998) |
| tautog | <zoology> An edible labroid fish (Haitula onitis, or Tautoga onitis) of the Atlantic coast of the United States. When adult it is nearly black, more or less irregularly barred, with greenish gray. Synonym: blackfish, oyster fish, salt-water chub, and moll. Alternative forms: tautaug. Origin: The pl. Of taut, the American Indian name, translated by Roger Williams sheep's heads, and written by him tautaoog. Source: Websters Dictionary (01 Mar 1998) |
| tautological | Involving tautology; having the same signification; as, tautological expression. Tautolog"ically, Tautological echo, an echo that repeats the same sound or syllable many times. Origin: Cf. F. Tautologique. Source: Websters Dictionary (01 Mar 1998) |
| tautology | <study> A repetition of the same meaning in different words; needless repetition of an idea in different words or phrases; a representation of anything as the cause, condition, or consequence of itself, as in the following lines: "The dawn is overcast, the morning lowers, And heavily in clouds brings on the day." (Addison) Synonym: Repetition. Tautology, Repetition. There may be frequent repetitions (as in legal instruments) which are warranted either by necessity or convenience; but tautology is always a fault, being a sameness of expression which adds nothing to the sense or the sound. Origin: L. Tautologia, Gr., cf. F. Tautologie. Source: Websters Dictionary (01 Mar 1998) |