• synonyms


[ek-soh-pep-ti-deys, -deyz]
noun Biochemistry.
  1. any enzyme that catalyzes the removal of an amino acid from the end of a polypeptide chain.
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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
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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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.