\ ˈkwȯrk How to pronounce quark (audio) , ˈkwärk How to pronounce quark (audio) \

Definition of quark

: any of several elementary particles that are postulated to come in pairs (as in the up and down varieties) of similar mass with one member having a charge of +²/₃ and the other a charge of −¹/₃ and are held to make up hadrons

Examples of quark in a Sentence

Recent Examples on the Web As correctly stated elsewhere in the obituary, it is known as a charm quark, not charmed. New York Times, 13 Aug. 2021 Toshihide Maskawa misstated the name given to the type of particle known as a quark that was discovered in 1974. New York Times, 13 Aug. 2021 Scientists have observed the extraordinarily tiny oscillations of a charm meson, a type of subatomic particle that contains both a quark and an antiquark. Caroline Delbert And Courtney Linder, Popular Mechanics, 29 July 2021 Clock Shadow Creamery used to mix it with their soft style quark. Kristine M. Kierzek, Milwaukee Journal Sentinel, 25 June 2021 Since many different kinds of visible particles exist — quarks, electrons and so on — there might be multiple dark particles as well. Quanta Magazine, 27 Apr. 2020 The electron, quark, and muon, for example, are paired with the positron, antiquark, and antimuon, respectively. Sophia Chen, Wired, 19 Feb. 2020 Since the early 1970s, physicists have known that each proton consists of a trio of less massive particles called quarks. Adrian Cho, Science | AAAS, 9 Jan. 2020 These particles are much, much lighter than quarks and pass through the cosmos ethereally, rarely stopping to interact with anything at all. Clara Moskowitz, Scientific American, 23 Apr. 2020

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

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First Known Use of quark

1964, in the meaning defined above

History and Etymology for quark

coined by Murray Gell-Mann

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Last Updated

3 Sep 2021

Cite this Entry

“Quark.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quark. Accessed 22 Sep. 2021.

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English Language Learners Definition of quark

: any one of several types of very small particles that make up matter

More from Merriam-Webster on quark

Britannica English: Translation of quark for Arabic Speakers

Britannica.com: Encyclopedia article about quark


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