Lepton (noun)

1. A subatomic particle that does not experience the strong nuclear force, such as an electron or muon.
2. Any of a class of subatomic particles that includes electrons and neutrinos, and that do not experience the strong nuclear force.

Origin:

From greek leptos "light".

Examples:

1. Leptons are subatomic particles that are not affected by the strong nuclear force, which holds the nucleus of an atom together.
2. The weak nuclear force is responsible for the decay of leptons.
3. Electrons and muons are examples of leptons.
4. Leptons are found in the lepton family, which includes electrons, muons, and tauons.
5. Leptons play an important role in the standard model of particle physics.