[ 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

tryp·tic [trip-tik] /ˈtrɪp tɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trypsin

British Dictionary definitions for trypsin


/ (ˈtrɪpsɪn) /


an enzyme occurring in pancreatic juice: it catalyses the hydrolysis of proteins to peptides and is secreted from the pancreas in the form of trypsinogenSee also chymotrypsin

Derived Forms

tryptic (ˈtrɪptɪk), adjective

Word Origin for trypsin

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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for trypsin


[ trĭpsĭn ]


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.

Science definitions for trypsin


[ trĭpsĭn ]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.