lepton number
noun Physics.
in a process involving elementary particles, the total number of leptons minus the total number of antileptons.
Origin of lepton number
First recorded in 1955–60
Words nearby lepton number
leptomeninges,
leptomeningitis,
leptomonad,
leptomonas,
lepton,
lepton number,
leptophos,
leptophyllous,
leptorrhine,
leptosomatic,
leptosome
British Dictionary definitions for lepton number
lepton number
noun
physics
a quantum number describing the behaviour of elementary particles, equal to the number of leptons present minus the number of antileptons. It is thought to be conserved in all processes
Symbol: l