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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
That technique doesn’t work for a W, which decays into a muon and an undetectable neutrino. Byadrian Cho, science.org, 20 Sep. 2024 Ultra-precise measurement in particle physics confounds scientists The difference between predictions and observations of the magnetic properties of muons suggests a mystery for the Standard Model. Big Think, 24 June 2024 João Coelho reported that over a third of ARCA’s sensors recorded flashes consistent with a muon crossing the observatory horizontally. Amal Jos Chacko, Interesting Engineering, 23 June 2024 When muons play around, muon-neutrinos come out, too. Paul Sutter, Ars Technica, 11 June 2024 See all Example Sentences for muon 

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 21 Dec. 2024.

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