Lepton meaning

lĕp'tŏn'
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.
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A small coin of ancient Greece.
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A former monetary unit of modern Greece, equal to1100 of a drachma.
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Any of a class of fermions subject to the weak interaction but not the strong interaction, as the electron, neutrino, muon, or tau particle.
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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.
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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.
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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).
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Origin of lepton

From Ancient Greek λεπτόν (lepton), neuter form of λεπτός (leptos, “small").

Sentence Examples

  • The chief points in which they vary are - (1) in the structure of the ctenidia or branchial plates; (2) in the presence of one or of two chief muscles, the fibres of which run across the animal's body from one valve of the shell to the other (adductors); (3) in the greater or less elaboration of the posterior portion of the mantle-skirt so as to form a pair of tubes, by one of which water is introduced into the sub-pallial chamber, whilst by the other it is expelled; (4) in the perfect or deficient symmetry of the two valves of the shell and the connected soft parts, as compared with one another; (5) in the development of the foot as a disk-like crawling organ (Arca, Nucula, Pectunculus, Trigonia, Lepton, Galeomma), as a simple plough-like or tongueshaped organ (Unionidae, &c.), as a re-curved saltatory organ (Cardium, &c.), as a long burrowing cylinder (Solenidae, &c.), or its partial (Mytilacea) or even complete abortion (Ostraeacea).

  • flavor of quark and charged lepton has a different mass.

  • For each charged lepton flavor there is a corresponding neutrino flavor.

  • lepton family number violating decay tau - e gamma.

  • lepton flavor violation in e+ p collisions at HERA.

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Words near lepton in the Dictionary