| tetrapyrrole | A molecule containing four pyrrole nuclei; e.g., porphyrin. (05 Mar 2000) |
|---|---|
| tetrarch | A Roman governor of the fourth part of a province; hence, any subordinate or dependent prince; also, a petty king or sovereign. Origin: L. Tetrarches, Gr,; (see Tetra-) + a ruler, to lead; rule: cf. F. Tetrarque. See Arch. Source: Websters Dictionary (01 Mar 1998) |
| tetrarchy | Origin: L. Tetrarchia, Gr., cf. F. Tetrarchie. The district under a Roman tetrarch; the office or jurisdiction of a tetrarch; a tetrarchate. Source: Websters Dictionary (01 Mar 1998) |
| tetrasaccharide | A sugar containing four molecules of a monosaccharide; e.g., stachyose. (05 Mar 2000) |
| tetrascelus | A malformed individual with four legs. Origin: tetra-+ G. Skelos, leg (05 Mar 2000) |
| tetraschistic | <biology> Characterised by division into four parts. Origin: Gr. Divided into four parts; tetra- + to split. Source: Websters Dictionary (01 Mar 1998) |
| tetrasepalous | <botany> Having four sepals. Origin: Tetra- + sepal. Source: Websters Dictionary (01 Mar 1998) |
| tetrasomic | Relating to a cell nucleus in which one chromosome is represented four times while all others are present in the normal number. Origin: tetra-+ chromosome (05 Mar 2000) |
| tetraspermous | <botany> Having four seeds. Tetraspermous plant, a plant which produces four seeds in each flower. Origin: Tetra- + Gr. A seed. Source: Websters Dictionary (01 Mar 1998) |
| tetraspore | <botany> A nonsexual spore, one of a group of four regularly occurring in red seaweeds. Tetraspor"ic. Origin: Tetra- + spore. Source: Websters Dictionary (01 Mar 1998) |
| tetraster | A figure exceptionally and abnormally occurring in mitosis, in which there are four asters. Origin: tetra-+G. Aster, star (05 Mar 2000) |
| tetrastichiasis | Duplication of the growth of the eyelashes (in four rows). Origin: tetra-+ G. Stichos, row (05 Mar 2000) |
| tetraterpenes | Hydrocarbons or their derivatives formed by the condensation of eight isoprene units (i.e., four terpenes) and therefore containing 40 carbon atoms; e.g., various carotenoids. (05 Mar 2000) |
| tetrathecal | <botany> Having four loculaments, or thecae. Origin: Tetra- + thecal. Source: Websters Dictionary (01 Mar 1998) |
| tetrathionate | <chemistry> A salt of tetrathionic acid. Source: Websters Dictionary (01 Mar 1998) |