nicotinic acid(redirected from Vitamin PP)
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[So called because it is often obtained by oxidizing nicotine.]
(Biochemistry) a vitamin of the B complex that occurs in milk, liver, yeast, etc. Lack of it in the diet leads to the disease pellagra. Formula: (C5H4N)COOH. Also called: niacin
a crystalline acid, C6H5NO2, that is a component of the vitamin B complex, occurring in animal products, yeast, etc. Also called niacin, vitamin B3.
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|Noun||1.||nicotinic acid - a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract|