[ek-soh-pep-ti-deys, -deyz]
Compare endopeptidase.

Origin of exopeptidase

First recorded in 1935–40; exo- + peptidase
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for exopeptidase


  1. any proteolytic enzyme, such as erepsin, that acts on the terminal bonds in a peptide chainCompare endopeptidase
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

exopeptidase in Medicine


[ĕk′sō-pĕptĭ-dās′, -dāz′]
  1. Any of a group of enzymes that catalyze the hydrolysis of single amino acids from the end of a polypeptide chain.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.