The smallest copper coin in use among the Jews, the lepton, called in Hebrew chalcous, "copper money."
The game was thus played in 1810, and is so still, both here and at lepton.
lepton, lep′ton, n. the smallest of modern Greek coins, 100 to the drachma.
A lepton is a very small brass Jewish coin worth half a Roman quadrans each, which is worth a quarter of the copper assarion.
lepton lep·ton (lěp'tŏn')
Any of a family of elementary particles that participate in the weak interaction, including the electron and its associated neutrino.
Any of a family of elementary particles that interact through the weak force and do not participate in the strong force. Leptons include electrons, muons, tau particles, and their respective neutrinos, the electron neutrino, the muon neutrino, and the tau neutrino. The antiparticles of these six particles are also leptons. Compare hadron. See Note at elementary particle. See Table at subatomic particle.