aldehyde

[ al-duh-hahyd ]

noun

, Chemistry.

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

aldehyde

/ 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

aldehyde

/ 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.

Derived Forms

• aldehydic, adjective

Other Words From

• alde·hydic adjective

Word History and Origins

Origin of aldehyde¹

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

Word History and Origins

Origin of aldehyde¹

C19: from 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

The researchers hypothesized that there might be a link between aldehydes and aging since individuals with premature aging disorders, like AMeD syndrome, exhibit inadequate activity of enzymes, like ALDH2, that break down aldehydes.

From Science Daily

Cats' scent comes from a mix of volatile organic compounds, including aldehydes, alcohols, esters and ketones.

From Science Daily

These aldehydes can cause lung disease and heart disease.

From Los Angeles Times

Oxidation leads to the formation of smaller molecules such as ketones, aldehydes and fatty acids that give rancid foods a characteristic rank, strong and metallic scent.

From Salon