Definition of quinone in English:

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Pronunciation: /ˈkwɪnəʊn/
Pronunciation: /kwɪˈnəʊn/


[mass noun] Chemistry
1 another term for 1,4-benzoquinone (see benzoquinone).
Example sentences
  • The chemical formula for quinone is C 6 H 4 O 2, and its molecular weight is 108.1 grams per mole.
  • The formation of the dimers is strongly favored by the contiguous presence of quinone and hydroquinone.
1.1 [count noun] Any compound with the same ring structure as 1,4-benzoquinone.
Example sentences
  • She said other researchers had shown that these ultrafine particles can carry toxic chemicals such as quinones and polycyclic aromatic hydrocarbons (PAHs).
  • Several kinds of compounds are activated under hypoxic conditions: aromatic and aliphatic N-oxides, quinones, nitroaromatics and organo-metallic compounds.
  • However, during infection and damage phenols and oxidases, such as peroxidase and tyrosinase, become decompartmentalized and could oxidize phenolic compounds to form antimicrobial quinones.


Mid 19th century: from Spanish quina (see quinine) + -one.

For editors and proofreaders

Line breaks: quin|one

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