verb (used with object), car·box·yl·at·ed, car·box·yl·at·ing.

to introduce the carboxyl group into (an organic compound).


a salt or ester of a carboxylic acid.

Nearby words

  1. carboxyhemoglobin,
  2. carboxyhemoglobinemia,
  3. carboxyl,
  4. carboxyl group,
  5. carboxylase,
  6. carboxylation,
  7. carboxylic acid,
  8. carboxyltransferase,
  9. carboxymethylcellulose,
  10. carboxypeptidase

Origin of carboxylate

First recorded in 1925–30; carboxyl + -ate2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for carboxylate



any salt or ester of a carboxylic acid having a formula of the type M(RCOO) x, where M is a metal and R an organic group, or R 1 COOR², where R 1 and R² are organic groups
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

Science definitions for carboxylate



A salt or ester of an organic acid, containing the radical COO. Soaps, which are usually the sodium or potassium salts of fatty acids, are carboxylates.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.