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A polypeptide hormone that is produced in the duodenum, especially on contact with acid, and that inhibits gastric secretion of acid and stimulates secretion of bile, insulin, and pancreatic digestive enzymes.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Physiology) a peptic hormone secreted by the mucosae of the duodenum and jejunum when food passes from the stomach
[C20: from secretion + -in]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(sɪˈkri tɪn)

a polypeptide hormone, produced in the small intestine, that activates the pancreas to secrete pancreatic juice.
[< German Secretin (1902); see secretion, -in1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.secretin - a gastrointestinal hormone that stimulates the secretion of water and bicarbonate from the pancreas and bile ducts whenever the stomach empties too much acid into the small intestine
gastrointestinal hormone, GI hormones - hormones that affect gastrointestinal functioning
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
FE-1 levels have been shown to have correlation with more correct tests of pancreatic exocrine function, such as the secretin test [3].
compared 23 normal individuals with 16 patients with cystic fibrosis, wherein the pancreatic exocrine insufficiency was verified using the secretin test. The results indicated that, with a threshold set to 200 fg/g, fecal elastase had 100% sensitivity and 96% specificity in detecting pancreatic exocrine insufficiency [18].
An MRCP-facilitated secretin test can be performed with a dynamic, breathhold, two-dimensional single-shot RARE heavily T2-weighted sequence, along the coronal plane.