Peruvian bark Meaning, Definition & Usage

  1. noun medicinal bark of cinchona trees; source of quinine and quinidine
    Jesuit's bark; cinchona bark; cinchona.

WordNet

Definitions
  1. 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.

Webster 1913