[1] : The Collaborative International Dictionary of English v.0.48

peruvian \peru"vian\, a. cf. f. p'eruvien, sp. peruviano.
   of or pertaining to peru, in south america. -- n. a native or
   an inhabitant of peru.
   1913 webster

   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.
      1913 webster
see also:
peruvian balsam balsam of peru balsam peruvian bark jesuit's bark cinchona 
cinchona 

[2] : WordNet (r) 2.0

peruvian bark
     n : medicinal bark of cinchona trees; source of quinine and
         quinidine syn: cinchona bark, jesuit's bark
see also:
cinchona bark jesuit's bark 

Peruvian >> P Words
Peruvian, definition of term: Peruvian
peruvian_pag1.html

Bark >> B Words
Bark, definition of term: Bark
bark_pag1.html