To stand on one leg, as a test of balance or as a specific sports stance

Medicine extracted from cinchona bark used to treat malaria; also called [[奎宁|奎寧|kui2 ning2]]

The cinchona tree, an evergreen whose bark is used to produce quinine for treating malaria.

any of several trees of the genus [[金鸡纳属|金雞納屬|jin1 ji1 na4 shu3]], from which quinine is derived

the Cinchona genus of plants within the Rubiaceae family, comprising several species of evergreen trees and shrubs native to the Andes, whose bark is the source of quinine

(variant form) any of several South American trees or shrubs of the genus Cinchona, whose bark yields quinine