Learn how to say Muon correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word muon:
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.
1950s: contraction of mu-meson; the particle, however, is no longer regarded as a meson