Retinol /(?)/

Ret·i·nol

Retinol

n.
  1. A hydrocarbon oil C32H16, obtained by the distillation of resin, -- used as a solvent, as an antiseptic, and in printer's ink. (Chem.)
  2. One of the compounds which function as vitamin A. Called also vitamin A, vitamin A1 and vitamin A alcohol. See vitamin A1.