- any of a genus (Cinchona) of tropical South American trees of the madder family, from the bark of which quinine and related medicinal alkaloids are obtained: the trees are widely cultivated in Asia and the East Indies
- the bitter bark of these trees
Origin of cinchonaModL: coined by Linnaeus after the Countess del Chinchón, wife of a 17th-c. Peruvian viceroy, who was treated for fever with the bark
- Any of several trees and shrubs of the genus Cinchona, native chiefly to the Andes and cultivated for bark that yields the medicinal alkaloids quinine and quinidine, which are used to treat malaria.
- The dried bark of any of these plants. Also called Jesuit's bark, Peruvian bark.
Origin of cinchonaNew Latin Cinchona, genus name, reputedly after Francisca Henríquez de Ribera (1576–1639), Countess of Chinchón.