The decomposition of protein; primarily via the hydrolysis of peptide bonds, both enzymatically and nonenzymatically. [proteo- + G. lysis, dissolution]

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pro·te·ol·y·sis .prōt-ē-'äl-ə-səs n, pl -y·ses -.sēz the hydrolysis of proteins or peptides with formation of simpler and soluble products (as in digestion)

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the process whereby complex protein molecules, obtained from the diet, are broken down by digestive enzymes in the stomach and small intestine into their constituent amino acids, which are then absorbed into the bloodstream. See endopeptidase, exopeptidase.
proteolytic adj.

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pro·te·ol·y·sis (pro″te-olґĭ-sis) [protein + -lysis] the splitting of proteins by hydrolysis of the peptide bonds with formation of smaller polypeptides; the process may be catalyzed by proteolytic enzymes, by acids, or by bases.

Medical dictionary. 2011.

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  • proteolysis — noun Etymology: New Latin Date: 1880 the hydrolysis of proteins or peptides with formation of simpler and soluble products …   New Collegiate Dictionary

  • proteolysis — noun The hydrolysis of proteins into peptides and amino acids; especially as part of the digestion of food …   Wiktionary

  • proteolysis — prəʊtɪ É‘lÉ™sɪs / É’l n. dissolution of proteins, breaking down of proteins …   English contemporary dictionary

  • proteolysis — [ˌprəʊtɪ ɒlɪsɪs] noun Biochemistry the breakdown of proteins or peptides into amino acids by the action of enzymes. Derivatives proteolytic adjective proteolytically adverb …   English new terms dictionary

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