Quin'i-ā or Quin'i-nā or Qui'nine or Qui-nine', n.
(kwīn'ī-ā) (kwīn'ī-nā) (Synop., § 130), n. [Fr. quinine, Sp. quinina, from quina, or quina-quina, Peruvian bark. See QUINQUINA.]
Sense 1. (Chem.) A basic alkaloid obtained from various species of cinchona, especially from C. flava, and C. calisaya, or China regia.
Sense 2. (Med.) One of the salts of quinine, especially the sulphate, in which form the alkaloid is chiefly employed, being excellent as a tonic and febrifuge.