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lepton number

noun

, Physics.
  1. in a process involving elementary particles, the total number of leptons minus the total number of antileptons.


lepton number

noun

  1. 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 l


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Word History and Origins

Origin of lepton number1

First recorded in 1955–60

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