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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

“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


aldehyde

/ ăldə-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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Derived Forms

  • aldehydic, adjective
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Other Words From

  • alde·hydic adjective
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Word History and Origins

Origin of aldehyde1

1840–50; < New Latin al ( cohol ) dehyd ( rogenātum ) dehydrogenated alcohol
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Word History and Origins

Origin of aldehyde1

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

With that in mind, Lam and colleagues homed in on a yeast gene called GRE2, which helps convert aldehydes into alcohol.

Neutral volatile substances—ethyl alcohol, aldehyde, acetone.

Aldehyde gives a carmine red unaltered by ammonium sulphate.

By this means the first compound is transformed into benzoic aldehyde, and the second into benzoic acid.

The starting-point in this synthesis is nitrobenzoic aldehyde, so that here again we begin with toluene as a raw material.

It is not possible to obtain the aldehyde in a pure condition, since it readily polymerizes.

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AldeburghAlden