: 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
Examples of muon in a Sentence
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In 2017, while a graduate student at MIT, Axani developed CosmicWatch with the intention of building a small, low-power muon detector.
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Chris Young, Interesting Engineering, 8 Jan. 2026
Cosmic rays batter Earth's atmosphere constantly, interacting with molecules of air and producing showers of exotic particles such as muons, high energy neutrons and positrons.
—Tereza Pultarova, Space.com, 3 Dec. 2025
Combine that with new predictions by the related Muon g-2 Theory Initiative using a new means of calculating the muon's magnetic moment, and the discrepancy between theoretical prediction and experiment narrows even further.
—ArsTechnica, 30 June 2025
The heart of the experiment is a giant 50-foot-diameter magnet, which acts as a racetrack for wobbling muons.
—Eleni Petrakou, Scientific American, 8 June 2025
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Chris Young, Interesting Engineering, 8 Jan. 2026
Cosmic rays batter Earth's atmosphere constantly, interacting with molecules of air and producing showers of exotic particles such as muons, high energy neutrons and positrons.
—Tereza Pultarova, Space.com, 3 Dec. 2025
Combine that with new predictions by the related Muon g-2 Theory Initiative using a new means of calculating the muon's magnetic moment, and the discrepancy between theoretical prediction and experiment narrows even further.
—ArsTechnica, 30 June 2025
The heart of the experiment is a giant 50-foot-diameter magnet, which acts as a racetrack for wobbling muons.
—Eleni Petrakou, Scientific American, 8 June 2025
See All Example Sentences for muon
Cite this Entry
“Muon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/muon. Accessed 21 Jan. 2026.
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