Search Result for "tau-minus particle":
Wordnet 3.0

NOUN (1)

1. a lepton of very great mass;
[syn: tauon, tau-minus particle]

The Collaborative International Dictionary of English v.0.48:

lepton \lepton\ n. (Physics) an elementary particle that participates in weak interactions but does not participate in the strong interaction; it has a baryon number of 0. Some known leptons are the electron, the negative muon, the tau-minus particle, and the neutrinos associated with each of these particles. [WordNet 1.5 +PJC]
WordNet (r) 3.0 (2006):

tau-minus particle n 1: a lepton of very great mass [syn: tauon, tau-minus particle]