Cinchona /(?)/

Cin·cho·na

Cinchona

n.
  1. A genus of trees growing naturally on the Andes in Peru and adjacent countries, but now cultivated in the East Indies, producing a medicinal bark of great value. (Bot.)
  2. The bark of any species of Cinchona containing three per cent. or more of bitter febrifuge alkaloids; Peruvian bark; Jesuits' bark. (Med.)