| a hypothetical type of neutrino that would obey a conservation law together with the tau lepton, with the total number of tau leptons and tau neutrinos minus the total number of their antiparticles remaining constant. |
[taw-on-ik, tou-] 
. | tau neutrino n. A probably stable elementary particle in the lepton family having a mass less than 60 times that of the electron and no charge. See Table at subatomic particle. |
| tau neutrino (tou, tô) Pronunciation Key
A type of neutrino associated with the tau particle, often created in particle interactions involving tau particles (such as the decay of these particles). The tau neutrino has a mass of zero or near zero, and has no electric charge. See more at neutrino. See Table at subatomic particle. |
ɪk