— muonic , adj.
/myooh"on/ , n. Physics.
a lepton similar in most respects to the electron except that it is unstable, it may be positively charged, and its mass is approximately 207 times greater; the positively charged muon is the antiparticle of the negatively charged muon. Symbol: µ
[ 1950-55; by shortening of MU MESON; see MU, -ON 1 ]