niacin
ni·a·cin
noun \ˈnī-ə-sən\Definition of NIACIN
: an acid C6H5NO2 of the vitamin B complex found widely in animals and plants and used especially against pellagra; also : nicotinamide —called also nicotinic acid
See Origin of NIACIN
nicotinic acid + 1-in
First Known Use: 1942
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