'vitamin A1' definitions:

Definition of 'vitamin A1'

From: WordNet
noun
An unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene [syn: vitamin A1, retinol]

Definition of 'vitamin A1'

From: GCIDE
  • Retinol \Ret"i*nol\, n. [Gr. ??? resin + L. oleum oil.]
  • 1. (Chem.) A hydrocarbon oil C32H16, obtained by the distillation of resin, -- used as a solvent, as an antiseptic, and in printer's ink. [1913 Webster +PJC]
  • 2. One of the compounds which function as vitamin A. Called also vitamin A, vitamin A1 and vitamin A alcohol. See vitamin A1. [PJC]

Definition of 'vitamin A1'

From: GCIDE
  • vitamin A1 \vitamin A1\ n. retinol (C20H30O), one of the substances also called vitamin A. It is also called more specifically {vitamin A alcohol}. It is a required factor for human nutrition. The USP unit of activity is equal to 0.30 micrograms of retinol.
  • Syn: retinol. [WordNet 1.5 +PJC]