'vitamin B5' definitions:

Definition of 'vitamin B5'

From: GCIDE
  • nicotinic acid \nic`o*tin"ic ac"id\, n. (Chem.) 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.
  • Note: It is a cofactor in several enzymatic reactions, and is used to prevent a pellagra-like disease in dogs. --[MI11]
  • Syn: 3-pyridinecarboxylic acid, niacin, antipellagra vitamin. [1913 Webster +PJC]

Definition of 'vitamin B5'

From: GCIDE
  • vitamin B5 \vitamin B5\ n. See nicotinic acid.
  • Syn: nicotinic acid. [PJC]