Muon Definition

myo͝oŏn
muons
noun
muons
An unstable, negatively charged lepton with a mass of 105.7 MeV, c. 207 times that of an electron, and a mean lifetime of 2.2×10-6 second: it decays into an electron, a neutrino, and an antineutrino.
Webster's New World
Synonyms:

Other Word Forms of Muon

Noun

Singular:
muon
Plural:
muons

Origin of Muon

  • Earlier mu meson (from the use of the Greek letter mu, the equivalent of the Roman letter m of meson, to distinguish it from other mesons subsequently discovered, the class of particles to which it was formerly thought to belong)

    From American Heritage Dictionary of the English Language, 5th Edition

  • Contraction of mu-meson (the particle has now been recategorised as a lepton).

    From Wiktionary

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