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A white crystalline acid, C6H5NO2, of the vitamin B complex that is found in meat, fish, legumes, and whole-grain foods and is used to treat and prevent pellagra. Also called nicotinic acid.
[ni(cotinic) ac(id) + -in.]
(Biochemistry) another name for nicotinic acid
[C20: from ni(cotinic) ac(id) + -in]
a crystalline acid, C6H5NO2, that is a component of the vitamin B complex, occurring in animal products, yeast, etc. Also called niacin, vitamin B3.
A vitamin belonging to the vitamin B complex that is important in carbohydrate metabolism. It is found in liver, fish, and whole-grain foods.
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|Noun||1.||niacin - a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract|