Hydroquinone
Pronunciation : Hy`dro*qui"none
Part of Speech : n.
Etymology : [Hydro-, 2 + quinone.] (Chem.)
Definition : Defn: A white crystalline substance, C6H4(OH)2, obtained by the reduction of quinone. It is a diacid phenol, resembling, and metameric with, pyrocatechin and resorcin. Called also dihydroxy benzene.
Source : Webster's Unabridged Dictionary, 1913