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mpound containing in the molecule two atoms of hydrogen united with some other element or radical. [Obs.]

compound containing in the molecule two atoms of oxygen united with some other element or radical; -- usually called dioxide, or less frequently, binoxide.

denoting two atoms, radicals, groups, or equivalents, as the case may be. See Bi-,

Divalent; -- said of a base or radical as capable of saturating two acid monad radicals or a dibasic acid. Cf. Dibasic, a., and Biacid.

A volatile, pungent, liquid hydrocarbon, C6H10, consisting of two allyl radicals, and belonging to the acetylene series.

Any compound containing two amido groups united with one or more acid or negative radicals, -- as distinguished from a diamine. Cf. Amido acid, under Amido, and Acid amide, under Amide.

A compound containing two amido groups united with one or more basic or positive radicals, -- as contrasted with a diamide.

Having two replaceable atoms or radicals.

adjectively), meaning pertaining to, or derived from, a series of compounds containing a radical of two nitrogen atoms, united usually to an aromatic radical; as, diazo- benzene, C6H5.N2.OH.

Having two acid hydrogen atoms capable of replacement by basic atoms or radicals, in forming salts; bibasic; -- said of acids, as oxalic or sulphuric acids. Cf. Diacid, Bibasic.

C8H18, of the marsh-gas series, being one of several octanes, and consisting of two butyl radicals. Cf. Octane.

Containing two carbon residues, or two carboxyl or radicals; as, oxalic acid is a dicarbonic acid.

A salt of chromic acid containing two equivalents of the acid radical to one of the base; -- called also bichromate.

A compound of a binary type containing two cyanogen groups or radicals; -- called also bicyanide.

Ethane; -- sometimes so called because regarded as consisting of two methyl radicals. See Ethane.

e hydrocarbon, C20H14, obtained from naphthylene, and consisting of a doubled naphthylene radical.

ained by leading benzene through a heated iron tube. It consists of two benzene or phenyl radicals united.

One of the hexane paraffins, found in petroleum, consisting of two propyl radicals. See Hexane.

A white, crystalline, aromatic hydrocarbon, C14H14, consisting of two radicals or residues of toluene.

s of complex nitrogenous substances regarded as containing two molecules of urea or their radicals, as uric acid or allantoin. Cf. Ureide.