Qui"none (?), n. [Quinine + ketone.] Chem.
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.]
© Webster 1913.