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vitamin B12 n.
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.
|vitamin B12 |
A water-soluble, complex organic compound containing cobalt, found especially in meat, liver, eggs, milk, and milk products. Vitamin B12 is necessary for the synthesis of DNA by the body, for the production of blood cells, and for maintaining the health of nerves. A deficiency of vitamin B12 in the diet results in pernicious anemia. Also called cobalamin, cyanocobalamin.