1

lepton

play
noun lep·ton \lep-ˈtän\

Definition of lepton

plural

lepta

play \-ˈtä\
  1. :  a former monetary unit equal to 1100 drachma

Origin and Etymology of lepton

Modern Greek, from Greek, a small coin, from neuter of leptos peeled, slender, small, from lepein to peel — more at leper


First Known Use: circa 1741


2

lepton

play
noun lep·ton \ˈlep-ˌtän\

Definition of lepton

  1. :  any of a family of particles (as electrons, muons, and neutrinos) that have spin quantum number 12 and that experience no strong forces

leptonic

play \lep-ˈtä-nik\ adjective

Origin and Etymology of lepton

Greek leptos + English 2-on


First Known Use: circa 1929


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