Source : Webster's Revised Unabridged Dictionary (1913)

Peruvian \Pe*ru"vi*an\, a. [Cf. F. p['e]ruvien, Sp. peruviano.]
   Of or pertaining to Peru, in South America. -- n. A native or
   an inhabitant of Peru.

   {Peruvian balsam}. See {Balsam of Peru}, under {Balsam}.

   {Peruvian bark}, the bitter bark of trees of various species
      of Cinchona. It acts as a powerful tonic, and is a remedy
      for malarial diseases. This property is due to several
      alkaloids, as quinine, cinchonine, etc., and their
      compounds; -- called also {Jesuit's bark}, and {cinchona}.
      See {Cinchona}.

Source : WordNet®

Peruvian bark
     n : medicinal bark of cinchona trees; source of quinine and
         quinidine [syn: {cinchona bark}, {Jesuit's bark}]