[ proh-tee-ol-uh-sis ]
/ ˌproʊ tiˈɒl ə sɪs /

noun Biochemistry.

the breaking down of proteins into simpler compounds, as in digestion.

Origin of proteolysis

1875–80; proteo- (combining form representing protein) + -lysis

OTHER WORDS FROM proteolysis

pro·te·o·lyt·ic [proh-tee-uh-lit-ik] /ˌproʊ ti əˈlɪt ɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for proteolysis

British Dictionary definitions for proteolysis

/ (ˌprəʊtɪˈɒlɪsɪs) /


the hydrolysis of proteins into simpler compounds by the action of enzymes: occurs esp during digestion

Derived forms of proteolysis

proteolytic (ˌprəʊtɪəˈlɪtɪk), adjective

Word Origin for proteolysis

C19: from New Latin, from proteo- (from protein) + -lysis
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

Medicine definitions for proteolysis

[ prō′tē-ŏlĭ-sĭs ]


The hydrolytic breakdown of proteins into simpler, soluble substances, as occurs in digestion.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.