[Sp. spelling of Quichua kina bark: see QUINQUINA.] a. The bark of several species of Cinchona that yield quinine. b. Chem. = QUINIA, QUININE.
1830. Lindley, Nat. Syst. Bot., 205. The febrifugal properties … of Cincona are known to depend upon the presence of two alkalies, called cinchonia and Quina.
1841. Penny Cycl., XIX. 221/1. The salts of quina are in general distinguished by their strong taste of Cinchona, and by their pearly lustre.
attrib. 1880. C. R. Markham, Peruv. Bark, 432, note. Quinetum … a collection of quina alkaloids.
