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Heterology :: Heterology (n.) The connection or relation of bodies which have partial identity of composition, but different characteristics and properties; the relation existing between derivatives of the same substance, or of the analogous members of different series; as, ethane, ethyl alcohol, acetic aldehyde, and acetic acid are in heterology with each other, though each in at the same time a member of a distinct homologous series. Cf. Homology..

Hydrocarbostyril :: Hydrocarbostyril (n.) A white, crystalline, nitrogenous hydrocarbon, C9H9NO, obtained from certain derivatives of cinnamic acid and closely related to quinoline and carbostyril..

Phenylene :: Phenylene (n.) A hypothetic radical (C6H4) occurring in certain derivatives of benzene; as, phenylene diamine..

Xanthide :: Xanthide (n.) A compound or derivative of xanthogen.

Phosphonic :: Phosphonic (a.) Pertaining to, or designating, certain derivatives of phosphorous acid containing a hydrocarbon radical, and analogous to the sulphonic acid..

Orcin :: Orcin (n.) A colorless crystalline substance, C6H3.CH3.(OH)2, which is obtained from certain lichens (Roccella, Lecanora, etc.), also from extract of aloes, and artificially from certain derivatives of toluene. It changes readily into orcein..

Derivate :: Derivate (a.) Derived; derivative.

Derivative :: Derivative (n.) A word formed from another word, by a prefix or suffix, an internal modification, or some other change; a word which takes its origin from a root..

Derivative :: Derivative (n.) A derived function; a function obtained from a given function by a certain algebraic process.

Derivative :: Derivative (n.) A substance so related to another substance by modification or partial substitution as to be regarded as derived from it; thus, the amido compounds are derivatives of ammonia, and the hydrocarbons are derivatives of methane, benzene, etc..

Pyrrol :: Pyrrol (n.) A nitrogenous base found in coal tar, bone oil, and other distillates of organic substances, and also produced synthetically as a colorless liquid, C4H5N, having on odor like that of chloroform. It is the nucleus and origin of a large number of derivatives. So called because it colors a splinter of wood moistened with hydrochloric acid a deep red..

Ethane :: Ethane (n.) A gaseous hydrocarbon, C2H6, forming a constituent of ordinary illuminating gas. It is the second member of the paraffin series, and its most important derivatives are common alcohol, aldehyde, ether, and acetic acid. Called also dimethyl..

Indogenide :: Indogenide (n.) Any one of the derivatives of indogen, which contain that group as a nucleus..

Thiophene :: Thiophene (n.) A sulphur hydrocarbon, C4H4S, analogous to furfuran and benzene, and acting as the base of a large number of substances which closely resemble the corresponding aromatic derivatives..

Thienone :: Thienone (n.) A ketone derivative of thiophene obtained as a white crystalline substance, (C4H3S)2.CO, by the action of aluminium chloride and carbonyl chloride on thiophene..

Tartrazine :: Tartrazine (n.) An artificial dyestuff obtained as an orange-yellow powder, and regarded as a phenyl hydrazine derivative of tartaric and sulphonic acids..

Xylenol :: Xylenol (n.) Any one of six metameric phenol derivatives of xylene, obtained as crystalline substances, (CH3)2.C6H3.OH..

Oxime :: Oxime (n.) One of a series of isonitroso derivatives obtained by the action of hydroxylamine on aldehydes or ketones.

Nitraniline :: Nitraniline (n.) Any one of a series of nitro derivatives of aniline. In general they are yellow crystalline substances.

Derivate :: Derivate (n.) A thing derived; a derivative.

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