: 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
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When the muon’s inherent magnetism clashes with an external magnetic field, the particle precesses, torquing to and fro like a wobbling, spinning top.
—
Eleni Petrakou, Scientific American, 8 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
No process that occurs on Earth can produce a muon with these sorts of energies.
—John Timmer, Ars Technica, 12 Feb. 2025
That muon then created its own fragmentary debris, sparking a ripple of telltale pale blue photons dubbed Cherenkov radiation that passed over ARCA’s instruments.
—Meghan Bartels, Scientific American, 12 Feb. 2025
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Eleni Petrakou, Scientific American, 8 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
No process that occurs on Earth can produce a muon with these sorts of energies.
—John Timmer, Ars Technica, 12 Feb. 2025
That muon then created its own fragmentary debris, sparking a ripple of telltale pale blue photons dubbed Cherenkov radiation that passed over ARCA’s instruments.
—Meghan Bartels, Scientific American, 12 Feb. 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 8 Jul. 2025.
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