| trephine biopsy | <haematology, procedure> Removal of a small core of bone marrow under local anaesthetic. It is used to assess bone marrow structure, the number and distribution of all the blood cell types. (19 Jan 1998) |
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| trephining | The removal of a circular disk of the cranium. It is performed with a trephine, a small circular saw with a centre pin mounted on a hollow metal shaft to which is attached a transverse handle. (12 Dec 1998) |
| trephocyte | Synonym: trophocyte. Origin: G. Trepho, to nourish, + kytos, cell (05 Mar 2000) |
| trephones | <cell biology> Substance supposedly released at a wound that stimulate mitosis: the opposite of chalones. (19 Jan 1998) |
| trepidant | Marked by tremor. Origin: L. Trepidans, pres. P. Of trepido, to tremble, to be agitated (05 Mar 2000) |
| trepidatio cordis | <symptom> A subjective sensation of a rapid, irregular or forceful beating of the heart that the patient is aware of. Origin: L. Palpitatio (29 Sep 1997) |
| trepidation | 1. An involuntary trembling, sometimes an effect of paralysis, but usually caused by terror or fear; quaking; quivering. 2. Hence, a state of terror or alarm; fear; confusion; fright; as, the men were in great trepidation. 3. A libration of the starry sphere in the Ptolemaic system; a motion ascribed to the firmament, to account for certain small changes in the position of the ecliptic and of the stars. Synonym: Tremor, agitation, disturbance, fear. Origin: F. Trepidation, L. Trepidatio, fr. Trepidare to hurry with alarm, to tremble, from trepidus agitated, disturbed, alarmed; cf. Trepit he turns, Gr. To turn, E. Torture. Source: Websters Dictionary (01 Mar 1998) |
| treponaemiasis | Infection caused by Treponema. Synonym: treponematosis. (05 Mar 2000) |
| treponaemicidal | Destructive to any species of Treponema, but usually with reference to T. Pallidum. Synonym: antitreponemal. Origin: Treponema + L. Caedo, to kill (05 Mar 2000) |
| Treponema | <bacteria> Genus of bacteria of the spirochaete family (Spirochaetaceae). Treponema pallidum causes syphilis. Cells are corkscrew like, (6-15um long,0.1-0.2um wide), motile, anaerobic and with a peptidoglycan cell wall and a capsule of glycosaminoglycans similar to hyaluronic acid and chondroitin sulphate in composition. Membrane has cardiolipin. (19 Jan 1998) |
| Treponema carateum | A species that causes pinta, or carate. (05 Mar 2000) |
| Treponema cuniculi | A species which causes spirochetosis in rabbits. (05 Mar 2000) |
| Treponema denticola | Cultivatable species that does not ferment carbohydrates and can be isolated from the oral cavity of humans. (05 Mar 2000) |
| Treponema genitalis | A nonpathogenic species found on the genitalia of humans. (05 Mar 2000) |
| Treponema hyodysenteriae | An enteropathogenic species that causes swine dysentery. (05 Mar 2000) |