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extrinsic factor

noun Biochemistry.
  1. vitamin B12.
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Origin of extrinsic factor

First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
extrinsic factor in Medicine

extrinsic factor

n.
  1. 12" class="kw" data-linkid="nn1ov4">vitamin B12
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.