qui·none /kwɪˈnon, ˈkwɪˌ/
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  qui·none /kwɪnˈon, ˈkwɪnˌ/ 名詞
  Qui·none n.  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.]
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  quinone
       n : any of a class of aromatic yellow compounds including
           several that are biologically important as coenzymes or
           acceptors or vitamins; used in making dyes [syn: benzoquinone]