Definitions
1.nounA coin used since ancient times in Greece, serving in modern times as one hundredth of a phoenix, a drachma, and a euro (as the Greek form of the Eurocent).
2.nounA small, bronze Judean coin from the 1st century B.C.E., considered by some to be the widow's mite.
3.nounAn elementary particle that has a spin of 1/2 (i.e., is a fermion) and does not interact via the strong nuclear force; examples include the electron, the muon, the neutrino and the tauon.