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[trip-sin] /ˈtrɪp sɪn/
noun, Biochemistry
a proteolytic enzyme of the pancreatic juice, capable of converting proteins into peptone.
Origin of trypsin
1875-80; irregular < Greek trîps(is) friction (trī́b(ein) to rub + -sis -sis) + -in2; so called because first obtained by rubbing the pancreas
Related forms
[trip-tik] /ˈtrɪp tɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for trypsin


an enzyme occurring in pancreatic juice: it catalyses the hydrolysis of proteins to peptides and is secreted from the pancreas in the form of trypsinogen See also chymotrypsin
Derived Forms
tryptic (ˈtrɪptɪk) adjective
Word Origin
C19 tryp-, from Greek tripsis a rubbing, from tribein to rub + -in; referring to the fact that it was originally produced by rubbing the pancreas with glycerine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for trypsin

chief digestive enzyme of pancreatic juice, 1876, apparently from Greek tripsis "rubbing" + chemical suffix -in (2). Said to be so called because it first was obtained by rubbing the pancreas with glycerin.

Online Etymology Dictionary, © 2010 Douglas Harper
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trypsin in Medicine

trypsin tryp·sin (trĭp'sĭn)
An enzyme of pancreatic juice that hydrolyzes proteins into smaller polypeptide units.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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trypsin in Science
An enzyme that aids digestion by breaking down proteins. It is produced by the pancreas and secreted into the small intestine, where it catalyzes the cleavage of peptide bonds connecting arginine or lysine to other amino acids.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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