ret·i·nol /ˈrɛtṇˌɔl, ˌol/
  瑞叮醇; 視黃醇
  ret·i·nol /ˈrɛtṇˌɔl, ˌol/ 名詞
  視黃醇,維生素a1,維生素a醇,維生素a,松香油
  Ret·i·nol n.
  1. Chem. A hydrocarbon oil C32H16, obtained by the distillation of resin, -- used as a solvent, as an antiseptic, and in printer's ink.
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  retinol
       n : an unsaturated alcohol that occurs in marine fish-liver oils
           and is synthesized biologically from carotene [syn: vitamin
           A1]