Definition of metamer

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Metamer (n.) Any one of several metameric forms of the same substance, or of different substances having the same composition; as, xylene has three metamers, viz., orthoxylene, metaxylene, and paraxylene..

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Pentane :: Pentane (n.) Any one of the three metameric hydrocarbons, C5H12, of the methane or paraffin series. They are colorless, volatile liquids, two of which occur in petroleum. So called because of the five carbon atoms in the molecule..
Neo- :: Neo- () A prefix meaning new, recent, late; and in chemistry designating specifically that variety of metameric hydrocarbons which, when the name was applied, had been recently classified, and in which at least one carbon atom in connected directly with four other carbon atoms; -- contrasted with normal and iso-; as, neopentane; the neoparaffins. Also used adjectively..
Phenanthroline :: Phenanthroline (n.) Either of two metameric nitrogenous hydrocarbon bases, C12H8N2, analogous to phenanthridine, but more highly nitrogenized..
Viridine :: Viridine (n.) A greenish, oily, nitrogenous hydrocarbon, C12H19N7, obtained from coal tar, and probably consisting of a mixture of several metameric compounds which are higher derivatives of the base pyridine..
Isorcin :: Isorcin (n.) A crystalline hydrocarbon derivative, metameric with orcin, but produced artificially; -- called also cresorcin..
Rubidine :: Rubidine (n.) A nitrogenous base homologous with pyridine, obtained from coal tar as an oily liquid, C11H17N; also, any one of the group od metameric compounds of which rubidine is the type..
Metamerism :: Metamerism (n.) The state or quality of being metameric; also, the relation or condition of metameric compounds..
Toluidine :: Toluidine (n.) Any one of three metameric amido derivatives of toluene analogous to aniline, and called respectively orthtoluidine, metatoluidine, and paratoluidine; especially, the commonest one, or paratoluidine, which is obtained as a white crystalline substance..
Somite :: Somite (n.) One of the actual or ideal serial segments of which an animal, esp. an articulate or vertebrate, is is composed; somatome; metamere..
Maleic :: Maleic (a.) Pertaining to, or designating, an acid of the ethylene series, metameric with fumaric acid and obtained by heating malic acid..
Xylene :: Xylene (n.) Any of a group of three metameric hydrocarbons of the aromatic series, found in coal and wood tar, and so named because found in crude wood spirit. They are colorless, oily, inflammable liquids, C6H4.(CH3)2, being dimethyl benzenes, and are called respectively orthoxylene, metaxylene, and paraxylene. Called also xylol..
Toluic :: Toluic (a.) Pertaining to, or designating, one of three metameric acids, CH3.C6H4.CO2H, which are related to toluene and analogous to benzoic acids. They are white crystalline substances, and are called respectively orthotoluic acid, metatoluic acid, and paratoluic acid..
Hydroquinone :: Hydroquinone (n.) A white crystalline substance, C6H4(OH)2, obtained by the reduction of quinone. It is a diacid phenol, resembling, and metameric with, pyrocatechin and resorcin. Called also dihydroxy benzene..
Xylic :: Xylic (a.) Pertaining to, derived from, or related to, xylene; specifically, designating any one of several metameric acids produced by the partial oxidation of mesitylene and pseudo-cumene..
Pyrogallol :: Pyrogallol (n.) A phenol metameric with phloroglucin, obtained by the distillation of gallic acid as a poisonous white crystalline substance having acid properties, and hence called also pyrogallic acid. It is a strong reducer, and is used as a developer in photography and in the production of certain dyes..
Homodynamy :: Homodynamy (n.) The homology of metameres. See Metamere.
Trimellic :: Trimellic (a.) Of, pertaining to, or designating, a certain tribasic acid (called also trimellitic acid) metameric with trimesitic acid..
Lepidine :: Lepidine (n.) An organic base, C9H6.N.CH3, metameric with quinaldine, and obtained by the distillation of cinchonine..
Merosome :: Merosome (n.) One of the serial segments, or metameres, of which the bodies of vertebrate and articulate animals are composed..
Pseudo-cumene :: Pseudo-cumene (n.) A hydrocarbon of the aromatic series, metameric with mesitylene and cumene, found in coal tar, and obtained as a colorless liquid..
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