| tetramelus | Conjoined twins possessing four arms (tetrabrachius), or four legs (tetrascelus). See: conjoined twins. Origin: tetra-+ G. Melos, limb (05 Mar 2000) |
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| tetramera | <zoology> A division of Coleoptera having, apparently, only four tarsal joints, one joint being rudimentary. Origin: NL. See Tetramerous. Source: Websters Dictionary (01 Mar 1998) |
| Tetrameres | A genus of stomach-infecting parasitic nematodes (family Spiruridae) of birds. When filled with eggs, the female worm is enormously enlarged and has a globular, blood-red appearance. Species include Tetrameres americana, found in the proventriculus of chickens (sometimes severely pathogenic in young chicks), turkeys, grouse, and quail, and transmitted by infected cockroaches and grasshoppers, and Tetrameres fissispina, found in the proventriculum of ducks, geese, wild waterfowl, pigeons, and doves but rarely in gallinaceous birds. Origin: see tetrameric (05 Mar 2000) |
| tetrameric | Tetramerous Having four parts, or parts arranged in groups of four, or capable of existing in four forms. Origin: tetra-+ G. Meros, part (05 Mar 2000) |
| tetramerous | Of a flower, having four segments in each perianth whorl, and usually in each whorl of stamens also. (09 Oct 1997) |
| tetramethyl acridine | <chemical, molecular biology> 3, 6-bis(dimethylamino)acridinium chloride. A toxic, fluorescing dye that stains DNA and RNA and is typically used to identify cancerous tumour cells. When it binds to double-stranded DNA, it fluoresces green, when it binds with the phosphate groups of single-stranded DNA or RNA, it fluoresces orange. The chemical also causes frameshift mutations. (12 Mar 1998) |
| tetramethylammonium iodide | (CH3)4NI3;dissolves in water to the extent of 0.25 gm per liter; used for the emergency disinfection of drinking water. (05 Mar 2000) |
| tetramethyldiarsine | (CH3)2As-As(CH3)2;an oil resulting from the distillation together of arsenous acid and potassium acetate. Synonym: dicacodyl, tetramethyldiarsine. Origin: G. Kakodes, foul-smelling (05 Mar 2000) |
| tetramethylene | <chemistry> A hypothetical hydrocarbon, C4H8, analogous to trimethylene, and regarded as the base of well-known series or derivatives. Sometimes, an isomeric radical used to designate certain compounds which are really related to butylene. Origin: Tetra- + methylene. Source: Websters Dictionary (01 Mar 1998) |
| tetramethylphenylenediamine | <chemical> N,n,n',n'-tetramethyl-p-phenylenediamine. Used in the form of the hydrochloride as a reagent in analytical chemistry. Pharmacological action: indicators and reagents. Chemical name: Benzenediamine, N,N,N',N'-tetramethyl- (12 Dec 1998) |
| tetramethylputrescine | A derivative of putrescine, C8H20N2, similar in its action to muscarine. (05 Mar 2000) |
| tetramisole | <chemical> Chemical name: Imidazo(2,1-b)thiazole, 2,3,5,6-tetrahydro-6-phenyl-, (+-)- (12 Dec 1998) |
| tetramorph | The union of the four attributes of the Evangelists in one figure, which is represented as winged, and standing on winged fiery wheels, the wings being covered with eyes. The representations of it are evidently suggested by the vision of Ezekiel (ch. I) Origin: Tetra- + Gr. Form, figure: cf. Gr. Fourfold. Source: Websters Dictionary (01 Mar 1998) |
| tetrandria | <botany> A Linnaean class of plants having four stamens. Origin: NL, from Gr. (see Tetra-) +, a man, male. Source: Websters Dictionary (01 Mar 1998) |
| tetrandrous | <botany> Belonging to the class Tetrandria. Source: Websters Dictionary (01 Mar 1998) |