Quinone
Pronunciation : Qui"none
Part of Speech : n.
Etymology : [Quinine + ketone.] (Chem.)
Definition : Defn: A crystalline substance, C6H4O2 (called also benzoketone), first obtained by the oxidation of quinic acid and regarded as a double ketone; also, by extension, any one of the series of which quinone proper is the type. [Written also chinone, kinone.]
Source : Webster's Unabridged Dictionary, 1913