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Definition of: quinone
(kwi·nōn′, kwin′ōn) noun Chem.
Either of two isomeric compounds obtained from benzene and its homologs; especially, a golden–yellow crystalline compound, C6H4O2, with pungent odor, formed variously, as by the oxidation of quinic acid, aniline, etc.: also called paraquinone.
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