Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of a family of elementary particles that participate in the weak interaction, including the electron, the muon, and their associated neutrinos. See Table at subatomic particle.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. 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.
  • n. 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).

from the GNU version of the Collaborative International Dictionary of English

  • n. 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.

from The Century Dictionary and Cyclopedia

  • n. The smallest coin of modern Greece, equal to a centime. One hundred lepta make a drachma.
  • n. The typical genus of Leptonidæ.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an elementary particle that participates in weak interactions; has a baryon number of 0
  • n. 100 lepta equal 1 drachma in Greece

Etymologies

lepto- + -on1.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek λεπτόν (lepton), neuter form of λεπτός (leptos, "small"). (Wiktionary)

Examples

  • The best known lepton is the electron; the other five are the muon, the tau particle, and three matching neutrinos.

    Researching the glue that holds the universe together

  • The coin was called a lepton and it took one hundred of them to make a denarius—an average day’s wage for a laborer.

    The Jesus Dynasty

  • Contraction of minute, from the Latin minutum, the translation of the Greek word lepton, the very smallest bronze of copper coin (Luke 12: 59; 21: 2).

    Easton's Bible Dictionary

  • Also there is six kind of lepton, that is electron (e), muon (µ), tau (t), neutrino-electron (?

    ReadABlog.com New Blogs and RSS Feeds

  • These 312 particles are held together by forces called morons, which are surrounded by vast quantities of lepton-like particles called peons.

    Held Together by the Weak Force: Morons

  • The chamber permitted particles to be tracked with a precision of better than 1mm, as a result of which several novel ephemeral subatomic particles have been discovered, such as the tau-lepton – a heavy version of the electron – and exotic varieties of quarks.

    Georges Charpak obituary

  • We started uttering other unknown words, like muon, lepton, and hadron.

    365 tomorrows » Patricia Stewart : A New Free Flash Fiction SciFi Story Every Day

  • Then in 1980, Father Francis Filas of Loyola University in Chicago, a Jesuit like our Father Morelli here, and Michael Marx, an expert in classical coins, identified the object over the right eye as a Julia lepton coin with a distinctive design of a sheaf of barley.

    The Shroud Codex

  • The lepton with the distinctive barley sheaf design was minted only once, in 29 A.D. Putting coins on the eyes of the dead has a long history in the Middle East.

    The Shroud Codex

  • So, if were seeing more leptons and missing pt than expected coming from decays, maybe its because they have some other intermediate decay channel, like a charged Higgs, or something totally weird like a half-quark/half-lepton thing called a leptoquark.

    New Physics in Heavy Flavors: The plot thickens « Imaginary Potential

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Comments

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  • widow's mite (might)!

    May 22, 2011

  • run of the mill????

    May 22, 2011