Word Study
nicotinic acid
CIDE DICTIONARY
nicotinic acid, n.
An organic acid (C6H5NO2 ), a carboxylated derivative of pyridine, obtained by the oxidation of nicotine; called also niacin and antipellagra vitamin , and vitamin B5 . Chemically it is 3-pyridinecarboxylic acid .
"It is a cofactor in several enzymatic reactions, and is used to prevent a pellagra-like disease in dogs. [MI11] " [1913 Webster]
OXFORD DICTIONARY
nicotinic acid, n. a vitamin of the B complex, found in milk, liver, and yeast, a deficiency of which causes pellagra. Also called NIACIN.
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