Definition of mu-mesic in English:
mu-mesic
(also μ-mesic, mumesic)
adjective ˌmjuːˈmɛzɪkˌmjuːˈmiːzɪk
Particle Physics rare Origin
1950s; earliest use found in Annual Review Nuclear Science. From the name of the Greek letter μ + mesic, after mu-meson.