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intrinsic factor

noun

, Biochemistry.
  1. a glycoprotein, secreted by the gastric mucosa, that is involved in the intestinal absorption of vitamin B 12 .


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
“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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Word History and Origins

Origin of intrinsic factor1

First recorded in 1925–30

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