quinine

qui·nine

noun
\ˈkwī-ˌnīn also ˈkwin-ˌīn, especially British kwin-ˈēn, ˈkwin-ēn\

Definition of QUININE

: a bitter crystalline alkaloid C₂₀H₂₄N₂O₂ obtained from cinchona bark that is used as a flavoring agent, has antipyretic and analgesic properties, and is administered orally in the form of its salts (as the hydrated sulfate (C₂₀H₂₄N₂O₂)₂·H₂SO₄·2H₂O) as an antimalarial