• synonyms

nicotinic acid

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noun Biochemistry.
  1. a 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.

Origin of nicotinic acid

First recorded in 1885–90
Also called niacin, vitamin B3.

vitamin B3

  1. nicotinic acid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for vitamin b3

nicotinic acid

  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: (C 5 H 4 N)COOHAlso called: niacin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

vitamin b3 in Medicine

nicotinic acid

  1. niacin

vitamin b3 in Science

nicotinic acid

[nĭk′ə-tĭnĭk, -tēnĭk]
  1. See niacin.
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