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The Collaborative International Dictionary
Quinizine

Quinizine \Quin"i*zine\, n. [Quinoline + hydrazine.] (Chem.) any one of a series of nitrogenous bases, certain of which are used as antipyretics.

Wiktionary
quinizine

n. (context chemistry archaic English) Any of a series of nitrogenous bases derived from quinoline, some of which are used as antipyretics.