ALDEHYDE • FREE TRANSLATOR.ORG • Definition of Aldehyde

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noun

Aldehyde n.

(Chem.) A colorless, mobile, and very volatile liquid obtained from alcohol by certain processes of oxidation.

(Chem.) Any compound having the group -CHO. Methyl aldehyde, the simplest aldehyde, is more commonly called formaldehyde, H-CHO, and acetic aldehyde is now more commonly called acetaldehyde. The higher aldehydes may be solids. A reducing sugar typically contains the aldehyde group. 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 acetaldehyde, acetic aldehyde or ethyl aldehyde), C2H4O; methyl aldehyde (called also formaldehyde), CH2O.

Aldehyde ammonia (Chem.), a compound formed by the union of aldehyde with ammonia.

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Etymology of 'Aldehyde'

Collaborative International Dictionary of English 0.48

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"Aldehyde" Quotes from Famous Books

... radicals with the formation of esters. The basicity of an organic acid, as above defined, is determined by the number of carboxyl groups present. Oxy-acids are carboxyllc acids which also contain a hydroxyl group; similarly we may have aldehyde-acids, ketone-acids, &c. Since the more important acids are treated under their own headings, or under substances closely allied to them, we shall here confine ourselves ...

— Project Gutenberg Encyclopedia