lan·o·lin /ˈlænḷən/
  羊毛脂
  lan·o·lin /ˈlænḷən/ 名詞
  Lan·o·lin n.  Physiol. Chem. A peculiar fatlike body, made up of cholesterin and certain fatty acids, found in feathers, hair, wool, and keratin tissues generally.
  Note: ☞ Under the same name, it is prepared from wool for commercial purposes, and forms an admirable basis for ointments, being readily absorbed by the skin.
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  lanolin
       n 1: a yellow viscous animal oil extracted from wool; a mixture
            of fatty acids and esters; used in some ointments and
            cosmetics [syn: wool fat, wool grease]
       2: an emollient containing wool fat (a fatty substance obtained
          from the wool of sheep)