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condensation of acetylene, as a fragrant, aromatic, mobile liquid; -- called also phenyl ethylene, vinyl benzene, styrol, styrene, and cinnamene.

substitution, or having some of its parts replaced; as, alcohol is a substituted water; methyl amine is a substituted ammonia. Substituted executor (Law), an executor appointed to act in place of one removed or resigned.

eral they are oily or crystalline deliquescent substances having a peculiar odor; as, trimethyl sulphine, (CH3)3S.OH. Cf. Sulphonium.

any one of a series of acids regarded as acid ethereal salts of hyposulphurous acid; as, methyl sulphinic acid, CH3.SO.OH, a thick unstable liquid.

tones, and consisting of the sulphuryl group united with two hydrocarbon radicals; as, dimethyl sulphone, (CH.SO

Of, pertaining to, and formerly designating, ethylsulphuric acid.

btained together with furfuran (tetrol) by the distillation of pine wood; -- called also methyl tetrol, or methyl furfuran.

rtaining to, or designating, a certain acid composed of tartaric acid in combination with ethyl, and now called ethyltartaric acid.

certain series of basic compounds containing a chain of four nitrogen atoms; for example, ethyl tetrazone, (C2H5)2N.N2.N(C2H5)2, a colorless liquid having an odor of leeks.

ocolate (from Theobroma Cacao) as a bitter white crystalline substance; -- called also dimethyl xanthine.

A colorless oily liquid, (C2H5)2S2, having a strong garlic odor; -- called also ethyl disulphide. By extension, any one of the series of related compounds.

colorless oily liquid, C4H3S.CH3, analogous to, and resembling, toluene; -- called also methyl thiophene.

Any one of three possible metameric substances, which are dimethyl derivatives of thiophene, like the xylenes from benzene.

Of, pertaining to, or designating, an acid, C4H7CO2H (called also methyl crotonic acid), homologous with crotonic acid, and obtained from croton oil (from Croton Tiglium) as a white crystalline substance.

light mobile colorless liquid, by distilling tolu balsam, coal tar, etc.; -- called also methyl benzene, phenyl methane, etc.

A hydrocarbon, C13H26, of the ethylene series, corresponding to tridecane, and obtained from Burmah petroleum as a light colorless liquid; -- called also tridecylene, and tridecene.

lline substance having a slightly acid taste and faint smell; -- called also ethidene- or ethylidene-biuret.

other elements or compounds, without the elimination of any side product; thus, aldehyde, ethylene, and ammonia are unsaturated.

A white crystalline substance, NH2.CO.OC2H5, produced by the action of ammonia on ethyl carbonate. It is used somewhat in medicine as a hypnotic. By extension, any one of the series of related substances of which urethane proper is the type.

A volatile liquid hydrocarbon, C5H6, related to ethylene and acetylene, but possessing the property of unsaturation in the third degree. It is the only known member of a distinct series of compounds. It has a garlic odor.