Definition of carboxyl in English:


Syllabification: car·box·yl
Pronunciation: /kärˈbäksəl


[as modifier] Chemistry
  • Of or denoting the acid radical —COOH, present in most organic acids: the carboxyl group
    More example sentences
    • The carboxyl group of lysergic acid has been reduced to a methyl group.
    • This is caused by a dehydration reaction between the hydroxyl group from the glycerol and the carboxyl groups of the fatty acids.
    • It is a weak organic acid that contains a carboxyl group.


mid 19th century: from carbo- + ox- 'oxygen' + -yl.

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Word of the day skosh
Pronunciation: skōSH
a small amount; a little