vitamin B12

vitamin B12 definition - medical

vitamin B12

noun
A complex compound containing cobalt, found especially in liver and widely used to treat pernicious anemia. Also called antipernicious anemia factor, cobalamin, cyanocobalamin, extrinsic factor.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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