An unstable elementary particle which is a type of lepton, having a mass almost twice that of a proton, a negative charge, and a spin of ½; it decays into hadrons (usually pions) or other leptons, and neutrinos.

plural of tauon

(physics) Pertaining to, or composed of, tauons.

(physics) a subatomic particle formed by the bound state of a matter tauon with its antimatter partner antitauon