D defs.my
Entry 1 sense Webster, 1913

Hydroquinone

· Hy·dro·qui·none · IPA /ˌhaɪdɹəˈkwɪnəʊn/
01 n. A white crystalline substance, C6H4(OH)2, obtained by the reduction of quinone. It is a diacid phenol, resembling, and metameric with, pyro…
  1. 1.
    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.(Chem.) Also: dihydroxy benzene