lepton

Any of a class of six elementary fermions, two in each of the three generations of fundamental fermions (one negatively charged and one neutral), and including the electron, electron neutrino, muon, muon neutrino, tauon, and tauon neutrino, together with their associated antiparticles, the antileptons. Leptons participate in weak interactions, but not strong interactions, and have masses generally less than those of mesons and baryons.

The smallest coin of modern Greece, equal to a centime. One hundred lepta make a drachma.

The typical genus of Leptonidæ.

an elementary particle that participates in weak interactions but does not participate in the strong interaction; it has a baryon number of 0. Some known leptons are the electron, the negative muon, the tau-minus particle, and the neutrinos associated with each of these particles.

A small, bronze Judean coin from the 1st century BC. The lowest value coin ever in circulation. Considered by some to be the widow’s mite.

An elementary particle with a spin of 1/2 (a fermion) which is immune to the strong nuclear force (including the electron, the muon, the neutrino and the tauon).

an elementary particle that participates in weak interactions; has a baryon number of 0

100 lepta equal 1 drachma in Greece