axerophthol

from WordNet (r) 3.0 (2006)

axerophthol
    n 1: any of several fat-soluble vitamins essential for normal
         vision; prevents night blindness or inflammation or dryness
         of the eyes [syn: {vitamin A}, {antiophthalmic factor},
         {axerophthol}, {A}]

from The Collaborative International Dictionary of English v.0.48

axerophthol \axerophthol\ n.
   1. a vitamin essential for normal vision ({C20H30O}); it
      prevents night blindness or inflammation or dryness of the
      eyes; same as {vitamin A}. One U.S.P. unit of vitamin A is
      equivalent to 0.30 micrograms of pure vitamin A alcohol.

   Syn: vitamin A; vitamin A alcohol; antiophthalmic factor;
        biosterol; retinol; A.
        [WordNet 1.5 +PJC]