Search Result for "lepton": 
Wordnet 3.0

NOUN (2)

1. 100 lepta equal 1 drachma in Greece;

2. an elementary particle that participates in weak interactions; has a baryon number of 0;


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):

lepton n 1: 100 lepta equal 1 drachma in Greece 2: an elementary particle that participates in weak interactions; has a baryon number of 0