[ koh-luh-sis-tuh-kahy-nin, kol-uh- ]
/ ˌkoʊ ləˌsɪs təˈkaɪ nɪn, ˌkɒl ə- /


a hormone secreted by the upper portion of the intestine that stimulates contraction of the gallbladder and increases secretion of pancreatic juice. Abbreviation: CCK

Origin of cholecystokinin

First recorded in 1925–30; cholecyst + -o- + -kinin Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for cholecystokinin

/ (ˌkɒlɪˌsɪstəˈkaɪnɪn) /


a hormone secreted by duodenal cells that stimulates the contraction of the gall bladder and secretion of pancreatic enzymesAlso called: pancreozymin
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

Medical definitions for cholecystokinin

[ kō′lĭ-sĭs′tə-kīnĭn ]


A polypeptide hormone produced principally by the small intestine in response to the presence of fats, causing contraction of the gallbladder, release of bile, and secretion of pancreatic digestive enzymes.pancreozymin
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.