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quinone

noun
qui·​none | \ kwi-ˈnōn How to pronounce quinone (audio) , ˈkwi-ˌnōn\

Definition of quinone

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

Recent Examples on the Web

 Quinones won the rescue board race and beach flags events in the Boys B Division. — Gary Curreri, Sun-Sentinel.com, "Junior lifeguards honor teammate at skills competition with heavy hearts," 28 July 2017 Quinones explores this phenomenon by talking to everyone involved, from addicts and parents to doctors, scientists, cops, and even Mexican drug traffickers. — Andy Borowitz, The New Yorker, "The Books We’re Turning to Now," 2 Feb. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quinone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of quinone

1853, in the meaning defined at sense 1

History and Etymology for quinone

International Scientific Vocabulary quinine + -one

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More Definitions for quinone

quinone

noun
qui·​none | \ kwin-ˈōn, ˈkwin-ˌ How to pronounce quinone (audio) \

Medical Definition of quinone

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

More from Merriam-Webster on quinone

Britannica.com: Encyclopedia article about quinone

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