hydroquinone
/ˌhaɪdɹəˈkwɪnəʊn/noun
hydroquinone is a noun meaning “The diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic developing; isomeric with catechol and resorcinol” (English Wiktionary, September 2026). It is spelled H-Y-D-R-O-Q-U-I-N-O-N-E, and it appears about once in every 10 million words in written English (wordfreq, 2021 data). The plural of hydroquinone is hydroquinones.
What does hydroquinone mean?
noun
- 1
The diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic developing; isomeric with catechol and resorcinol.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce hydroquinone?
- /ˌhaɪdɹəˈkwɪnəʊn/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of hydroquinone
- hydroquinones plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is hydroquinone?
Hydroquinone appears about once in every 10 million words in written English, the 94,827th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Hydroquinone in Spanish, French, German and Portuguese
In the sense the diphenol para-dihydroxy benzene:
| Language | Words |
|---|---|
| French | hydroquinone |
| German | Hydrochinon |
| Portuguese | hidroquinona |
| Spanish | hidroquinona |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does hydroquinone come from?
From hydro- + quinone.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).