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essential residue of methane, and appearing as a component part of many derivatives; as, methyl alcohol, methyl ether, methyl amine, etc. [Formerly written also methule, methyle, etc.] Methyl alcohol (Chem.), a light, volatile, inflammable liquid, CH3.OH, obtained by the distillation of wood, and hence called wood spi…

ex ether, and having a pleasant ethereal odor. It is obtained by the partial oxidation of methyl alcohol. Called also formal.

See Methyl amine, under Methyl.

An alcoholate of methyl alcohol in which the hydroxyl hydrogen is replaced by a metal, after the analogy of a hydrate; as, sodium methylate, CH3ONa.

Impregnated with, or containing, methyl alcohol or wood spirit; as, methylated spirits.

but regarded as an essential residue and component of certain derivatives of methane; as, methylene bromide, CH2Br2; -- formerly called also methene. Methylene blue (Chem.), an artificial dyestuff consisting of a complex sulphur derivative of diphenyl amine; -- called also pure blue.

Pertaining to, derived from, or containing, methyl; specifically, designating methyl alcohol. See under Methyl.

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

Methyl oxamate, obtained as a pearly white crystalline substance.

Formic aldehyde, regarded as a methylene derivative.

ucleus of a large number of derivatives; -- so named because regarded as composed of five methylene residues. Cf. Trimethylene, and Tetramethylene.

A hypothetical hydrocarbon, C4H8, analogous to trimethylene, and regarded as the base of well-known series or derivatives.

hem.) A prefix or combining form (also used adjectively) indicating the presence of three methyl groups.

characteristic herringlike odor. It is regarded as a substituted ammonia containing three methyl groups.

A gaseous hydrocarbon, C3H6, isomeric with propylene and obtained from it indirectly. It is the base of a series of compounds analogous to the aromatic hydrocarbons.

Methyl ketol; also, any of various homologues of the same.

f certain organic radicals; as, the radical ethyl forms common or ethyl alcohol (C2H5OH); methyl forms methyl alcohol (CH3.OH) or wood spirit; amyl forms amyl alcohol (C5H11.OH) or fusel oil, etc.

Methyl phenyl ether, C6H5OCH3, got by distilling anisic acid or by the action of methide on potassium phenolate.

A sirupy, nontoxic ptomaine, C5H14N2 (chemically pentamethylene diamine), formed in putrefaction of flesh, etc.

Methyl alcohol, CH3OH; -- also, by extension, any one in the homologous series of paraffine alcohols of which methyl alcohol is the type.