A lepton is a fermion, meaning that it is an elementary particle with half-integer spin. Leptons consist of several types of electrons, such as the tau electron; along with [[quark]]s, leptons matter constituents.
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A '''lepton''' is a [[fermion]], meaning that it is an elementary particle with half-integer spin. Leptons consist of several types of electrons, such as the tau electron; along with [[quark]]s, leptons matter constituents.