lepton

[ lep-ton ]

/ ˈlɛp tɒn /

noun, plural lep·ta [lep-tuh]. /ˈlɛp tə/.

an aluminum coin of modern Greece until the euro was adopted, one 100th of a drachma.

a small copper or bronze coin of ancient Greece.

Origin of lepton

First recorded in 1715–25; from Greek leptón (nómisma) “a small (coin),” noun use of neuter of leptós small; see lepto-

Words nearby lepton

leptokurtosis, leptomeninges, leptomeningitis, leptomonad, Leptomonas, lepton, lepton number, leptophos, leptophyllous, leptorrhine, leptosomatic

Definition for lepton (2 of 2)

lepton²

[ lep-ton ]

/ ˈlɛp tɒn /

noun Physics.

any of a class of particles with spin of ½ that are not subject to the strong force and that are believed to be truly elementary and not composed of quarks or other subunits. The leptons known or believed to exist are the electron and electron-neutrino, the muon and mu-neutrino, and the tau lepton and tau-neutrino.

Compare conservation of lepton number.

Origin of lepton

1948; <Greek, neuter of leptós small, slight; see lepto-, -on¹

OTHER WORDS FROM lepton

lep·ton·ic, adjective

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for lepton

Lepton, lep′ton, n. the smallest of modern Greek coins, 100 to the drachma.
Chambers's Twentieth Century Dictionary (part 2 of 4: E-M)|Various
A lepton is a very small brass Jewish coin worth half a Roman quadrans each, which is worth a quarter of the copper assarion.
The World English Bible (WEB), The Old Testament, Complete|Various
The game was thus played in 1810, and is so still, both here and at Lepton.
The Traditional Games of England, Scotland, and Ireland (Vol I of II)|Alice Bertha Gomme

British Dictionary definitions for lepton (1 of 2)

lepton¹

/ (ˈlɛptɒn) /

noun plural -ta (-tə)

a former Greek monetary unit worth one hundredth of a drachma

a small coin of ancient Greece

Word Origin for lepton

from Greek lepton (nomisma) small (coin)

British Dictionary definitions for lepton (2 of 2)

lepton²

/ (ˈlɛptɒn) /

noun

physics any of a group of elementary particles and their antiparticles, such as an electron, muon, or neutrino, that participate in electromagnetic and weak interactions and have a half-integral spin

Derived forms of lepton

leptonic, adjective

Word Origin for lepton

C20: from lepto- + -on

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for lepton

lepton

[ (lep-ton) ]

Any one of six elementary particles that are one of the fundamental constituents of matter. Leptons are not affected by the strong force and are not normally found in the nucleus of the atom. The electron and the neutrino are examples of leptons.

Medical definitions for lepton

lepton

[ lĕp′tŏn′ ]

n.

Any of a family of elementary particles that participate in the weak interaction, including the electron and its associated neutrino.

Scientific definitions for lepton

lepton

[ lĕp′tŏn′ ]

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.

单词	lepton
释义	lepton ¹ [ lep-ton ] / ˈlɛp tɒn / noun, plural lep·ta [lep-tuh]. /ˈlɛp tə/. an aluminum coin of modern Greece until the euro was adopted, one 100th of a drachma. a small copper or bronze coin of ancient Greece. Origin of lepton ¹ First recorded in 1715–25; from Greek leptón (nómisma) “a small (coin),” noun use of neuter of leptós small; see lepto- Words nearby lepton leptokurtosis, leptomeninges, leptomeningitis, leptomonad, Leptomonas, lepton, lepton number, leptophos, leptophyllous, leptorrhine, leptosomatic Definition for lepton (2 of 2) lepton² [ lep-ton ] / ˈlɛp tɒn / noun Physics. any of a class of particles with spin of ½ that are not subject to the strong force and that are believed to be truly elementary and not composed of quarks or other subunits. The leptons known or believed to exist are the electron and electron-neutrino, the muon and mu-neutrino, and the tau lepton and tau-neutrino. Compare conservation of lepton number. Origin of lepton ² 1948; <Greek, neuter of leptós small, slight; see lepto-, -on¹ OTHER WORDS FROM lepton lep·ton·ic, adjective Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for lepton Lepton, lep′ton, n. the smallest of modern Greek coins, 100 to the drachma. Chambers's Twentieth Century Dictionary (part 2 of 4: E-M)\|Various A lepton is a very small brass Jewish coin worth half a Roman quadrans each, which is worth a quarter of the copper assarion. The World English Bible (WEB), The Old Testament, Complete\|Various The game was thus played in 1810, and is so still, both here and at Lepton. The Traditional Games of England, Scotland, and Ireland (Vol I of II)\|Alice Bertha Gomme British Dictionary definitions for lepton (1 of 2) lepton¹ / (ˈlɛptɒn) / noun plural -ta (-tə) a former Greek monetary unit worth one hundredth of a drachma a small coin of ancient Greece Word Origin for lepton from Greek lepton (nomisma) small (coin) British Dictionary definitions for lepton (2 of 2) lepton² / (ˈlɛptɒn) / noun physics any of a group of elementary particles and their antiparticles, such as an electron, muon, or neutrino, that participate in electromagnetic and weak interactions and have a half-integral spin Derived forms of lepton leptonic, adjective Word Origin for lepton C20: from lepto- + -on Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cultural definitions for lepton lepton [ (lep-ton) ] Any one of six elementary particles that are one of the fundamental constituents of matter. Leptons are not affected by the strong force and are not normally found in the nucleus of the atom. The electron and the neutrino are examples of leptons. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for lepton lepton [ lĕp′tŏn′ ] n. Any of a family of elementary particles that participate in the weak interaction, including the electron and its associated neutrino. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for lepton lepton [ lĕp′tŏn′ ] 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. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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