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 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 Quinones won the rescue board race and beach flags events in the Boys B Division. Gary Curreri, Sun-Sentinel.com, 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, 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.

See More

First Known Use of quinone

1853, in the meaning defined at sense 1

History and Etymology for quinone

International Scientific Vocabulary quinine + -one

Keep scrolling for more

Learn More about quinone

Time Traveler for quinone

Time Traveler

The first known use of quinone was in 1853

See more words from the same year

Statistics for quinone

Last Updated

8 May 2021

Cite this Entry

“Quinone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quinone. Accessed 15 Jun. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

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

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Dog Breeds

Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!