Adjacent Words

CH2O definitions

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Webster's 1913 Dictionary

Aldehyde Al"de*hyde, n. [Abbrev. fr. alcohol dehydrogenatum, alcohol deprived of its hydrogen.] (Chem.) A colorless, mobile, and very volatile liquid obtained from alcohol by certain processes of oxidation. Note: The aldehydes are intermediate between the alcohols and acids, and differ from the alcohols in having two less hydrogen atoms in the molecule, as common aldehyde (called also acetic aldehyde or ethyl aldehyde), C2H4O; methyl aldehyde, CH2O.