Pronunciation: (myOO'on-nOO-trē"nō, -nyOO-), [key]
—pl. -nos. Physics.
a type of neutrino that obeys a conservation law together with the muon, with the total number of muons and muon-neutrinos minus the total number of their antiparticles remaining constant. Also called mu-neutrino, muon'ic neutri'no. Cf. lepton.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.