Found 2 items, similar to vitamin A1.
English → English (WordNet) Definition: vitamin A1 vitamin A1 n : an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene [syn: retinol]
English → English (gcide) Definition: vitamin A1 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] 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]