The meaning of Cinchonas and additional information.

Cinchona(n.) 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.

Cinchona(n.) The bark of any species of Cinchona containing three per cent. or more of bitter febrifuge alkaloids; Peruvian bark; Jesuits' bark.