Cinchona

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.

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

any of several trees of the genus Cinchona

medicinal bark of cinchona trees; source of quinine and quinidine