aldehyde

American  

[al-duh-hahyd] / ˈæl dəˌhaɪd /

noun

Chemistry.

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

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aldehyde British  

/ ˈældɪˌhaɪd, ˌældəˈhɪdɪk /

noun

1. any organic compound containing the group -CHO. Aldehydes are oxidized to carboxylic acids and take part in many addition reactions

2. (modifier) consisting of, containing, or concerned with the group -CHO

   aldehyde group or radical

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aldehyde Scientific  

/ ăl′də-hīd′ /

1. 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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Other Word Forms

• aldehydic adjective

Etymology

Origin of aldehyde

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

Example Sentences

They found that the same aldehyde dehydrogenase gene in the lovebirds to express at high level in yellow psittacofulvin-containing feathers, but not in red feathers.

From Science Daily • Nov. 15, 2024

After a match, “he stank like kerosene, ammonia, aldehyde, sweat. His waterlogged clothes looked like he’d been dunked in the ocean. Foreign hairs from the mat were sticking to his skin.”

From New York Times • Aug. 23, 2021

You might be trying to get at, for example, an aldehyde called vanillin.

From Washington Post • Feb. 21, 2019

An alcohol with its –OH group bonded to a carbon atom that is bonded to no or one other carbon atom will form an aldehyde.

From Textbooks • Feb. 14, 2019

Even through the door she can smell him, peppermint, musk, aldehyde.

From "All the Light We Cannot See" by Anthony Doerr