Definition of hydroquinone
: a white crystalline strongly reducing phenol C6H6O2 used especially as a photographic developer, as an antioxidant and stabilizer, and in medicine to remove pigmentation from hyperpigmented areas of skin
Origin and Etymology of hydroquinone
International Scientific Vocabulary
First Known Use: circa 1872
Seen and Heard
What made you want to look up hydroquinone? Please tell us where you read or heard it (including the quote, if possible).