Origin of carboxyl

First recorded in 1865–70; carb- + ox(ygen) + -yl
Related formscar·box·yl·ic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for carboxyl

Historical Examples of carboxyl

carboxyl in Medicine


  1. The univalent radical, COOH, characteristic of all organic acids.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

carboxyl in Science


  1. The radical COOH, characteristic of all carboxylic acids.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.