hydroquinone[hī′drō kwi nōn′, -kwin′ōn′]
a white, crystalline substance, CH(OH), used in photographic developers, dyes, paints, etc. and in medicine to remove pigmentation from the skin
Origin of hydroquinonehydro- + quinone
A white crystalline phenol, C6H6O2, used as an antioxidant, photographic developer, stabilizer, and reagent.
(countable and uncountable, plural hydroquinones)