hydroquinone

H4Y4D2R1O1Q10U1I1N1O1N1E1
/ˌhaɪdɹəˈkwɪnəʊn/

noun

The diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic developing; isomeric with catechol and resorcinol.

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UncommonScrabble 28

Meanings

nounhydroquinone (countable and uncountable, plural hydroquinones)

plural hydroquinones

  1. countableuncountablechemistryThe diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic developing; isomeric with catechol and resorcinol.

    Synonyms: quinol

Synonyms & antonyms

nounThe diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic developing; isomeric with catechol and resorcinol.

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Origin

  1. Proto-Indo-European*wed-
  2. Proto-Indo-European*wódr̥
  3. Proto-Hellenic*údōr
  4. Ancient Greekῡ̆̔́δωρ (hū̆́dōr)
  5. Ancient Greekῠ̔δρο- (hŭdro-)
  6. Englishhydro-
  7. Englishquinine
  8. Englishquinic
  9. GermanKeton
  10. Englishketone
  11. Englishquinone
  12. Englishhydroquinone

From hydro- + quinone.

Full word history & related roots →

Translations

Catalan hidroquinona
  • hidroquinonathe diphenol para-dihydroxy benzene
Chinese Mandarin 氫醌 /氢醌, 對苯二酚 /对苯二酚
  • 氫醌 /氢醌 (qīngkūn)the diphenol para-dihydroxy benzene
  • 對苯二酚 /对苯二酚 (duìběn'èrfēn)the diphenol para-dihydroxy benzene
French hydroquinone
  • hydroquinonethe diphenol para-dihydroxy benzene
German Hydrochinon
  • Hydrochinonthe diphenol para-dihydroxy benzene
Hungarian hidrokinon
  • hidrokinonthe diphenol para-dihydroxy benzene
Korean 하이드로퀴논, 히드로퀴논
  • 하이드로퀴논 (haideurokwinon)the diphenol para-dihydroxy benzene
  • 히드로퀴논 (hideurokwinon)the diphenol para-dihydroxy benzene
Portuguese hidroquinona
  • hidroquinonathe diphenol para-dihydroxy benzene
Spanish hidroquinona
  • hidroquinonathe diphenol para-dihydroxy benzene
Thai ไฮโดรควิโนน
  • ไฮโดรควิโนนthe diphenol para-dihydroxy benzene
Cite this entry
APA

hydroquinone. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/hydroquinone

MLA

“hydroquinone.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hydroquinone. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “hydroquinone,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/hydroquinone.

Source: hydroquinone on Wiktionary, CC BY-SA 4.0.