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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 tertiary amine analogous to trimethylamine.

liquid hydrocarbon obtained by the decomposition of veratric acid, and constituting the dimethyl ether of pyrocatechin.

tosella), having an acid taste. See Illust. (a) of Shamrock. -- Wood spirit. (Chem.) See Methyl alcohol, under Methyl. -- Wood stamp, a carved or engraved block or stamp of wood, for impressing figures or colors on fabrics. -- Wood star (Zoöl.), any one of several species of small South American humming birds belong…

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.

en pigment consisting of zinc and cobalt oxides; -- called also Rinmann's green. -- Zinc methyl (Chem.), a colorless mobile liquid Zn(CH3)2, produced by the action of methyl iodide on a zinc sodium alloy. It has a disagreeable odor, and is spontaneously inflammable in the air. It has been of great importance in the sy…