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A coenzyme, C21H27N7O14P2, occurring in most living cells and utilized alternately with NADH as an oxidizing or reducing agent in various metabolic processes.
[n(icotinamide) a(denine) d(inucleotide).]
n. Vulgar Slang
[Short for gonad.]
(Biochemistry) biochem nicotinamide adenine dinucleotide; a coenzyme that is a hydrogen carrier in metabolic reactions, esp in tissue respiration. Former name: DPN
nicotinamide adenine dinucleotide: a coenzyme, C21H27N7O14P2, involved in many cellular oxidation-reduction reactions.
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|Noun||1.||NAD - a coenzyme present in most living cells and derived from the B vitamin nicotinic acid; serves as a reductant in various metabolic processes|
coenzyme - a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes