vitamin b5

2 definitions found

vitamin b5 - Collaborative International Dictionary of English v.0.48 :

  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]

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