muon

noun

mu·​on ˈmyü-ˌän How to pronounce muon (audio)
: an unstable lepton that is common in the cosmic radiation near the earth's surface, has a mass about 207 times the mass of the electron, and exists in negative and positive forms
muonic adjective

Examples of muon in a Sentence

Recent Examples on the Web When muons play around, muon-neutrinos come out, too. Paul Sutter, Ars Technica, 11 June 2024 There is a field for each of the particles in nature, from common particles such as electrons and photons to their more exotic cousins such as muons and gluons. Luke Caldwell, Scientific American, 1 Feb. 2024 The clock would start when physicists generate the muons. Byadrian Cho, science.org, 28 Mar. 2024 The muons would emerge in a cloud centimeters wide. Byadrian Cho, science.org, 28 Mar. 2024 See all Example Sentences for muon 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'muon.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

contraction of earlier mu-meson, from mu

First Known Use

1951, in the meaning defined above

Time Traveler
The first known use of muon was in 1951

Dictionary Entries Near muon

Cite this Entry

“Muon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/muon. Accessed 29 Jun. 2024.

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