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[pep-ti-deys, -deyz] /ˈpɛp tɪˌdeɪs, -ˌdeɪz/
noun, Biochemistry
any of the class of enzymes that catalyze the hydrolysis of peptides or peptones to amino acids.
1915-20; peptide + -ase Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for peptidase


/ˈpɛptɪˌdeɪs; -ˌdeɪz/
any of a group of proteolytic enzymes that hydrolyse peptides to amino acids
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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peptidase in Medicine

peptidase pep·ti·dase (pěp'tĭ-dās', -dāz')
An enzyme that catalyzes the hydrolysis of peptides into amino acids.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for peptidase

any of a group of enzymes that break the long chainlike molecules of proteins into shorter fragments (peptides) and eventually into their components, amino acids. Proteolytic enzymes are present in bacteria and plants but are most abundant in animals. In the stomach, protein materials are attacked initially by the gastric enzyme pepsin. When the protein material is passed to the small intestine, proteins, which are only partially digested in the stomach, are further attacked by proteolytic enzymes secreted by the pancreas.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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