hydroquinone (countable and uncountable, plural hydroquinones)
(organic compound) The diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic developing; isomeric with catechol and resorcinol.
Source: Wiktionary
Hy`dro*qui"none, n. Etym: [Hydro-, 2 + quinone.] (Chem.)
Definition: 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 Edition
14 January 2025
(adjective) of so extreme a degree or extent; “such weeping”; “so much weeping”; “such a help”; “such grief”; “never dreamed of such beauty”
The first coffee-house in Mecca dates back to the 1510s. The beverage was in Turkey by the 1530s. It appeared in Europe circa 1515-1519 and was introduced to England by 1650. By 1675 the country had more than 3,000 coffee houses, and coffee had replaced beer as a breakfast drink.
