lepton

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. 100 lepta equal 1 drachma in Greece
• Hypernyms:
Greek monetary unit
• Part Holonyms:
drachma, Greek drachma
2. an elementary particle that participates in weak interactions;
has a baryon number of 0
• Hypernyms:
elementary particle, fundamental particle, fermion
• Hyponyms:
electron, negatron, muon, negative muon, mu-meson,
neutrino, tauon, tau-minus particle