[ek-soh-pep-ti-deys, -deyz]
noun Biochemistry.
any enzyme that catalyzes the removal of an amino acid from the end of a polypeptide chain.
Compare endopeptidase.

1935–40; exo- + peptidase

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World English Dictionary
exopeptidase (ˌɛksəʊˈpɛptɪˌdeɪz)
Compare endopeptidase any proteolytic enzyme, such as erepsin, that acts on the terminal bonds in a peptide chain

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American Heritage
Medical Dictionary

exopeptidase ex·o·pep·ti·dase (ěk'sō-pěp'tĭ-dās', -dāz')
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
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