EXAMPLES | WORD ORIGIN noun . Chemistry 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 Related forms al·de·hy·dic, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for aldehyde Historical Examples of aldehyde
In this way the last portion of the
aldehyde is absorbed, and the potash solution gradually assumes an amber colour.
Benzoic acid, like the
aldehyde, is a natural product which has long been known.
There is no reduction unless an
aldehyde is added or unless some boiled extract of a tissue such as liver is added.
The value of the oil depends upon its
aldehyde content, the chief constituent being cinnamic aldehyde.
Besides methyl salicylate, the oil contains triaconitane, an
aldehyde or ketone, and an alcohol. British Dictionary definitions for aldehyde 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 Derived Forms aldehydic ( ˌældəˈhɪdɪk), adjective Word Origin for aldehyde
C19: from New Latin
al ( cohol) dehyd ( rogenātum) dehydrogenated alcohol
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for aldehyde n.
first oxidation product of alcohol, 1833, discovered in 1774 by German-born Swedish chemist Carl Wilhelm Scheele (1742-1786), the name said to have been coined by German chemist Justus von Liebig (1803-1873) from abbreviation of Modern Latin
alcohol dehydrogenatum "dehydrogenated alcohol."
Online Etymology Dictionary, © 2010 Douglas Harper
n. Any of a class of reactive organic chemical compounds obtained by oxidation of primary alcohols, characterized by the common group CHO, and used in the manufacture of resins, dyes, and organic acids. acetaldehyde
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.