1
: either of two isomeric cyclic crystalline compounds C6H4O2 that are derivatives of benzene
2
: any of various usually yellow, orange, or red quinonoid compounds including several that are biologically important as coenzymes, hydrogen acceptors, or vitamins
Examples of quinone in a Sentence
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The push stems from an organic compound in tires called quinone that was newly identified by researchers at the University of Washington, said Birgit Hagedorn, a geochemist and longtime board member of the Anchorage Waterways Council.
—
Anchorage Daily News, 26 Apr. 2021
The researchers identified a chemical called 6PPD, a common rubber additive aimed at making car tires last longer, that transforms into deadly 6PPD-quinone when unleashed in nature, reports Lynda V. Maps of the Seattle Times.
—Alex Fox, Smithsonian Magazine, 7 Dec. 2020
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Anchorage Daily News, 26 Apr. 2021
The researchers identified a chemical called 6PPD, a common rubber additive aimed at making car tires last longer, that transforms into deadly 6PPD-quinone when unleashed in nature, reports Lynda V. Maps of the Seattle Times.
—Alex Fox, Smithsonian Magazine, 7 Dec. 2020
Dictionary Entries Near quinone
Cite this Entry
“Quinone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quinone. Accessed 1 Dec. 2024.
Copy CitationMedical Definition
quinone
noun
qui·none
kwin-ˈōn, ˈkwin-ˌ 
1
: either of two isomeric cyclic crystalline compounds C6H4O2 that are extremely irritating to the skin and mucous membranes
2
: any of various usually yellow, orange, or red quinonoid compounds including several that are biologically important as coenzymes, hydrogen acceptors, or vitamins
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