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[si-kree-tin] /sɪˈkri tɪn/
noun, Biochemistry
a polypeptide hormone, produced in the small intestine, that activates the pancreas to secrete pancreatic juice.
Origin of secretin
1900-05; secrete1 + -in2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for secretin
  • At one time, there was enormous excitement about using secretin infusions.
  • Now, after many studies have been conducted in many laboratories, it's possible that secretin is not effective after all.
British Dictionary definitions for secretin


a peptic hormone secreted by the mucosae of the duodenum and jejunum when food passes from the stomach
Word Origin
C20: from secretion + -in
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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secretin in Medicine

secretin se·cre·tin (sĭ-krēt'n)
A polypeptide hormone produced in the duodenum, especially on contact with acid, that stimulates secretion of pancreatic juice.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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