Pe·ru·vi·an a.  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.

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