| tribasilar synostosis | Fusion in early life of the three bones at the base of the skull, resulting in interference with the development of the brain. (05 Mar 2000) |
|---|---|
| tribe | To distribute into tribes or classes. "Our fowl, fish, and quadruped are well tribed." (Abp. Nicolson) 1. A family, race, or series of generations, descending from the same progenitor, and kept distinct, as in the case of the twelve tribes of Israel, descended from the twelve sons of Jacob. "The Lion of the tribe of Juda." "A wealthy Hebrew of my tribe." (Shak) 2. <botany> A number of species or genera having certain structural characteristics in common; as, a tribe of plants; a tribe of animals. By many recent naturalists, tribe has been used for a group of animals or plants intermediate between order and genus. 3. A nation of savages or uncivilized people; a body of rude people united under one leader or government; as, the tribes of the Six Nations; the Seneca tribe. 4. A division, class, or distinct portion of a people, from whatever cause that distinction may have originated; as, the city of Athens was divided into ten tribes. 5. A family of animals descended from some particular female progenitor, through the female line; as, the Duchess tribe of shorthorns. Origin: L. Tribus, originally, a third part of the Roman people, afterwards, a division of the people, a tribe; of uncertain origin: cf. F. Tribu. Source: Websters Dictionary (01 Mar 1998) |
| tribolium | A genus of small beetles of the family tenebrionidae; t. Confusum is the "confused flour beetle". (12 Dec 1998) |
| tribology | The study of friction and its effects in biological systems, especially in regard to articulated surfaces of the skeleton. Origin: G. Tribo, to rub, + logos, study (05 Mar 2000) |
| triboluminescence | Luminosity produced by friction. Origin: G. Tribo, to rub, + luminescence (05 Mar 2000) |
| tribrachia | Condition seen in conjoined twins when the fusion has merged the adjacent arms to form a single one, so that there are only three arms for the two bodies. See: conjoined twins. Origin: tri-+ G. Brachion, arm (05 Mar 2000) |
| tribrachius | Conjoined twins exhibiting tribrachia. (05 Mar 2000) |
| tribracteate | <botany> Having three bracts. Origin: Pref. Tri- + bracteate. Source: Websters Dictionary (01 Mar 1998) |
| tribromoethanol | Br3C-CH2OH;formerly used as a basal anaesthetic agent administered rectally. (05 Mar 2000) |
| tribromsalan | 3,4',5-Tribromosalicylanilide;a disinfectant used in soaps. (05 Mar 2000) |
| tribute | 1. An annual or stated sum of money or other valuable thing, paid by one ruler or nation to another, either as an acknowledgment of submission, or as the price of peace and protection, or by virtue of some treaty; as, the Romans made their conquered countries pay tribute. "Millions for defense, but not one cent for tribute." (C. C. Pinckney) 2. A personal contribution, as of money, praise, service, etc, made in token of services rendered, or as that which is due or deserved; as, a tribute of affection. "Implores the passing tribute of a sigh." (Gray) 3. <chemical> A certain proportion of the ore raised, or of its value, given to the miner as his recompense. Tribute money, money paid as a tribute or tax. Tribute pitch. <chemical> See Tributer. Synonym: See Subsidy. Origin: OE. Tribut, L. Tributum, fr. Tribuere, tributum, to bestow, grant, pay, allot, assign, originally, to a tribe, from tribus tribe; cf. F. Tribut. See Tribe, and cf. Attribute, Contribute. Source: Websters Dictionary (01 Mar 1998) |
| tributer | <chemical> One who works for a certain portion of the ore, or its value. Tributers generally work in gangs, and have a limited portion of a lode set them, called a tribute pitch, beyond which they are not permitted to work, and for which they receive a certain portion of the ore, or so much per pound, as agreed upon, of the value of what they raise. Source: Websters Dictionary (01 Mar 1998) |
| tributyrase | triacylglycerol lipase |
| tributyrin | A synthetic substrate for lipase assays. Synonym: glyceryl tributyrate, tributyrylglycerol. (05 Mar 2000) |
| tributyrinase | triacylglycerol lipase |