aldehyde

[ al-duh-hahyd ]

nounChemistry.

any of a class of organic compounds containing the group −CHO, which yields acids when oxidized and alcohols when reduced.

Origin of aldehyde

1840–50; <New Latin al(cohol) dehyd(rogenātum) dehydrogenated alcohol

Other words from aldehyde

al·de·hy·dic, adjective

Words Nearby aldehyde

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use aldehyde in a sentence

With that in mind, Lam and colleagues homed in on a yeast gene called GRE2, which helps convert aldehydes into alcohol.
A tweaked yeast can make ethanol from cornstalks and a harvest’s other leftovers | Nikk Ogasa | July 7, 2021 | Science News
Neutral volatile substances—ethyl alcohol, aldehyde, acetone.
The Elements of Bacteriological Technique | John William Henry Eyre
aldehyde gives a carmine red unaltered by ammonium sulphate.
The Elements of Bacteriological Technique | John William Henry Eyre
By this means the first compound is transformed into benzoic aldehyde, and the second into benzoic acid.
Coal | Raphael Meldola
The starting-point in this synthesis is nitrobenzoic aldehyde, so that here again we begin with toluene as a raw material.
Coal | Raphael Meldola

It is not possible to obtain the aldehyde in a pure condition, since it readily polymerizes.
Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 6 | Various

British Dictionary definitions for aldehyde

aldehyde

/ (ˈældɪˌhaɪd) /

noun

any organic compound containing the group -CHO. Aldehydes are oxidized to carboxylic acids and take part in many addition reactions
(modifier) consisting of, containing, or concerned with the group -CHO: aldehyde group or radical

Origin of aldehyde

C19: from New Latin al (cohol) dehyd (rogenātum) dehydrogenated alcohol

Derived forms of aldehyde

aldehydic (ˌældəˈhɪdɪk), adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for aldehyde

aldehyde

[ ăl′də-hīd′ ]

Any of a class of highly reactive organic compounds obtained by oxidation of certain alcohols and containing the group CHO. Aldehydes are used in manufacturing resins, dyes, and organic acids.

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