| tetrinic | <chemistry> Of, pertaining to, or designating, a complex ketonic acid, C5H6O3, obtained as a white crystalline substance; so called because once supposed to contain a peculiar radical of four carbon atoms. Synonym: acetyl-acrylic acid. See: Tetra-. Source: Websters Dictionary (01 Mar 1998) |
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| tetrodon | <zoology> Any one of numerous species of plectognath fishes belonging to Tetrodon and allied genera. Each jaw is furnished with two large, thick, beaklike, bony teeth. Alternative forms: tetradon. The skin is usually spinous, and the belly is capable of being greatly distended by air or water. It includes the swellfish, puffer, and similar species. Origin: Tetra- + Gr, tooth. Source: Websters Dictionary (01 Mar 1998) |
| tetrodont | <zoology> Of or pertaining to the tetrodons. A tetrodon. Alternative forms: tetradont, and tetraodont. Source: Websters Dictionary (01 Mar 1998) |
| tetrodotoxin | <protein> A potent neurotoxin (319 D) from the Japanese puffer fish. It binds to the sodium channel, blocking the passage of action potentials. Its activity closely resembles that of saxitoxin. (18 Nov 1997) |
| tetrol | <chemistry> A hypothetical hydrocarbon, C4H4, analogous to benzene; so called from the four carbon atoms in the molecule. Tetrol phenol, furfuran. Origin: Tetra- + benzol. Source: Websters Dictionary (01 Mar 1998) |
| tetrolic | <chemistry> Of, pertaining to, or designating, an acid, C3H3.CO2H, of the acetylene series, homologous with propiolic acid, obtained as a white crystalline substance. Source: Websters Dictionary (01 Mar 1998) |
| tetrose | General term for a monosaccharide with 4 carbon atoms. (18 Nov 1997) |
| tetrotus | A malformed individual with four ears, four eyes, two faces, and two almost separate heads. Synonym: tetraotus. Origin: tetra-+ G. Ous (ot-), ear (05 Mar 2000) |
| tetroxide | <chemistry> An oxide having four atoms of oxygen in the molecule; a quadroxide; as, osmium tetroxide, OsO. Origin: Tetra- + oxide. Source: Websters Dictionary (01 Mar 1998) |
| tetryl | <chemistry> Butyl; so called from the four carbon atoms in the molecule. Origin: Tetra- + -yl. Source: Websters Dictionary (01 Mar 1998) |
| tetrylene | <chemistry> Butylene; so called from the four carbon atoms in the molecule. Origin: Tetra- + ethylene. Source: Websters Dictionary (01 Mar 1998) |
| tetter | <medicine> A vesicular disease of the skin; herpes. See Herpes. <medicine> Honeycomb tetter, psoriasis. <botany> Tetter berry, the white bryony. Origin: OE. Teter, AS. Teter, tetr; akin to G. Zitter, zittermal, OHG. Zittaroch, Skr. Dadru, dadruka, a sort of skin disease. 63, 240. Source: Websters Dictionary (01 Mar 1998) |
| tetterwort | <botany> A plant used as a remedy for tetter, in England the calendine, in America the bloodroot. Source: Websters Dictionary (01 Mar 1998) |
| tettigonian | <zoology> Any one of numerous species of Hemiptera belonging to Tettigonia and allied genera; a leaf hopper. Origin: Gr, dim. Of a kind of grasshopper. Source: Websters Dictionary (01 Mar 1998) |
| tettix | 1. <zoology> The cicada. 2. <zoology> A genus of small grasshoppers. Origin: NL, fr. Gr. A kind of grasshopper. Source: Websters Dictionary (01 Mar 1998) |