The Collaborative International Dictionary of English v.0.48:

Rouge \Rouge\, n. [F.]
   1. (Chem.) A red amorphous powder consisting of ferric oxide.
      It is used in polishing glass, metal, or gems, and as a
      cosmetic, etc. Called also crocus, jeweler's rouge,
      etc.
      [1913 Webster]

   2. A cosmetic used for giving a red color to the cheeks or
      lips. The best is prepared from the dried flowers of the
      safflower, but it is often made from carmine. --Ure.
      [1913 Webster]