See Also: lepton(1)(dictionary)
lepton(2)(dictionary)
lepton(encyclopedia)

lepton(2) (iou)



lepton noun2. M20.
[from Greek leptos small + -ON.]
Particle Physics. Any of a class of subatomic particles (including electrons, muons, and neutrinos) which do not take part in the strong interaction. Cf. HADRON.
Comb.: lepton number a quantum number assigned to subatomic particles that is 1 for leptons and 0 for other particles and is conserved in all known interactions.
lep'tonic adjective of, pertaining to, or involving leptons M20.