hydroquinone
n. நிழற்பட ஆக்கத்துக்கு உதவும் வேதியியற் பொருட்கூறுகளில் ஒன்று.
Hy`dro*qui"none, n. Etym: [Hydro-, 2 + quinone.] (Chem.) 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.