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[pep-tuh-nahyz] /ˈpɛp təˌnaɪz/
verb (used with object), peptonized, peptonizing.
to subject (food) to an artificial, partial digestion by pepsin or pancreatic extract in order to aid digestion.
to hydrolyze or dissolve by a proteolytic enzyme, as pepsin.
Also, especially British, peptonise.
Origin of peptonize
1875-80; peptone + -ize
Related forms
peptonization, noun
peptonizer, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for peptonize


(transitive) to hydrolyse (a protein) to peptones by enzymic action, esp by pepsin or pancreatic extract
Derived Forms
peptonization, peptonisation, noun
peptonizer, peptoniser, noun
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
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peptonize in Medicine

peptonize pep·to·nize (pěp'tə-nīz')
v. pep·to·nized, pep·to·niz·ing, pep·to·niz·es

  1. To convert protein into a soluble peptone by enzymatic action.

  2. To dissolve food by means of a proteolytic enzyme.

  3. To combine with peptone.

pep'to·ni·za'tion (-nĭ-zā'shən) n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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