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intrinsic factor

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noun Biochemistry.
  1. a glycoprotein, secreted by the gastric mucosa, that is involved in the intestinal absorption of vitamin B12.
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Origin of intrinsic factor

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for intrinsic factor

intrinsic factor

noun
  1. biochem a glycoprotein, secreted by the stomach, the presence of which is necessary for the absorption of cyanocobalamin (vitamin B 12) in the intestine
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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
intrinsic factor in Medicine

intrinsic factor

n.
  1. A relatively small mucoprotein secreted by the parietal cells of gastric glands and required for adequate absorption of vitamin B12 for production of red blood cells.Castle's intrinsic factor
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.