mu-meson

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WORDNET DICTIONARY

Noun mu-meson has 1 sense

mu-meson(n = noun.object) muon, negative muon - an elementary particle with a negative charge and a half-life of 2 microsecond; decays to electron and neutrino and antineutrino; Array

is a kind of lepton

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CIDE DICTIONARY

mu-meson, n.

an elementary particle with a negative charge and a half-life of 2 microseconds; the muon. It is a lepton, not a true meson, and decays to an electron and neutrino and antineutrino. [WordNet 1.5]

For further exploring for "mu-meson" in Webster Dictionary Online