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单词 nicotinic acid
释义

WordReference Random House Unabridged Dictionary of American English © 2024
nicotinic acid, [Biochem.]
  1. Biochemistrya crystalline acid, C6H5NO2, that is a component of the vitamin-B complex, found in fresh meat, yeast, etc., produced by the oxidation of nicotine, and used in the prevention and treatment of pellagra. Also called niacin, vitamin B3. 
  • 1885–90

Collins Concise English Dictionary © HarperCollins Publishers::
nicotinic acid n
  1. 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
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