quinone Meaning, Definition & Usage

  1. noun any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes
    benzoquinone.

WordNet

Qui"none noun
Etymology
Quinine + ketone.
Definitions
  1. (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. and benzoquinone.

Webster 1913