transcription, транскрипция: [ ˈmyü-ˌän ]
noun
Etymology: contraction of earlier mu-meson, from mu
Date: 1952
: an unstable lepton that is common in the cosmic radiation near the earth's surface, has a mass about 207 times the mass of the electron, and exists in negative and positive forms
• mu·on·ic myü-ˈä-nik adjective