D defs.my
Entry 2 senses Webster, 1913

Retinol

/rĕt'-ĭn-ôlˌ/ · Ret·i·nol · IPA /ˈrɛ.tən̩ɑl/
01 n. A hydrocarbon oil C32H16, obtained by the distillation of resin, -- used as a solvent, as an antiseptic, and in printer's ink.
  1. 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. 2.
    One of the compounds which function as vitamin A. Called also vitamin A, vitamin A1 and vitamin A alcohol. See vitamin A1. Also: vitamin A, vitamin A1, vitamin A alcohol See: vitamin A1