What does "hydroquinone" mean?

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

What is a synonym for "hydroquinone"?

Common synonyms include: dihydroquinone, quinol.

How do you pronounce "hydroquinone"?

Pronounced //ˌhaɪdɹəˈkwɪnəʊn//.

Hydroquinone

//ˌhaɪdɹəˈkwɪnəʊn// noun

noun ·Rare ·Advanced level

Definitions

Noun

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

Synonyms

All synonyms

dihydroquinone quinol

Example

More examples

"The products, even those claiming to have so-called "natural" components, can contain mercury, hydroquinone or caustic agents like sodium hydroxide."

Etymology

From hydro- + quinone.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.