muon
/ˈmjuːɒn/noun
- Physics an unstable subatomic particle of the same class as an electron (a lepton), but with a mass around 200 times greater. Muons make up much of the cosmic radiation reaching the earth's surface.【物理】μ（介）子。
派生词
muonic
adjective词源
1950s: contraction of MU-MESON; the particle, however, is no longer regarded as a meson.