Lepton

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]

From WordNet (r) 2.0 [wn]:

  lepton
       n 1: 100 lepta equal 1 drachma
       2: an elementary particle that participates in weak
          interactions; has a baryon number of 0
       [also: {lepta} (pl)]