The Collaborative International Dictionary
Quinovin
Quinovin \Qui*no"vin\, n. [NL. quina nova the tree Cosmibuena magnifolia, whose bark yields quinovin.] (Chem.) An amorphous bitter glucoside derived from cinchona and other barks. Called also quinova bitter, and quinova. [Written also chinovin, and kinovin.]
Wiktionary
quinovin
n. (context chemistry archaic English) An amorphous bitter glucoside derived from cinchona and other barks.