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definitions

carboxyl group

noun
  1. the univalent radical COOH, present in and characteristic of organic acids.

Origin of carboxyl group

First recorded in 1875–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for carboxyl group

carboxyl group

carboxyl radical

noun
  1. the monovalent group –COOH, consisting of a carbonyl group bound to a hydroxyl group: the functional group in organic acids

Word Origin for carboxyl group

C19 carboxyl, from carbo- + oxy- ² + -yl
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