The Collaborative International Dictionary
Quinhydrone
Quinhydrone \Quin*hy"drone\, n. [Quinone + hydroquinone.] (Chem.) A green crystalline substance formed by the union of quinone with hydroquinone, or as an intermediate product in the oxidation of hydroquinone or the reduction of quinone.
Wiktionary
quinhydrone
n. (context chemistry English) a molecular complex of a quinone and its corresponding hydroquinone