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quinone

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noun qui·none \ kwi-ˈnōn , 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

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Recent Examples of quinone from the Web

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.

Origin and Etymology of quinone

International Scientific Vocabulary quinine + -one

Medical Dictionary

quinone

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noun qui·none \ kwin-ˈōn, ˈkwin-ˌ \

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

Learn More about quinone

  1. Britannica.com: Encyclopedia article about quinone

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