ben·zo·qui·none /ˌbɛnzokwɪnˈon, ˈkwɪnˌ/ 名詞
  苯昆
  benzoquinone
       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: quinone]