[lep-ton] /ˈlɛp tɒn/
noun, plural lepta
[lep-tuh] /ˈlɛp tə/ (Show IPA)
an aluminum coin of modern Greece until the was adopted, the 100th part of a drachma.
a small copper or bronze coin of ancient Greece.
[lep-ton] /ˈlɛp tɒn/
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 and tau-neutrino.
noun (pl) -ta (-tə)
a former Greek monetary unit worth one hundredth of a drachma
a small coin of ancient Greece
(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
elementary particle of small mass, 1948, from Greek leptos “small, slight, slender, delicate” (from lepein “to peel,” from PIE *lep-; see leper) + -on. Also the name of a small coin in ancient Greece, from neuter of leptos
lepton lep·ton (lěp’tŏn’)
Any of a family of elementary particles that participate in the weak interaction, including the electron and its associated neutrino.
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.
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.
noun, Physics. 1. in a process involving elementary particles, the total number of leptons minus the total number of antileptons. noun 1. (physics) a quantum number describing the behaviour of elementary particles, equal to the number of leptons present minus the number of antileptons. It is thought to be conserved in all processes l
[lep-tuh-fos] /ˈlɛp təˌfɒs/ noun, Chemistry. 1. a solid compound, C 13 H 10 BrCl 2 O 2 PS, used as a nonsystemic insecticide for food crops and lawn grass.
[lep-erd] /ˈlɛp ərd/ noun 1. a large, spotted Asian or African carnivore, Panthera pardus, of the cat family, usually tawny with black markings; the Old World panther: all leopard populations are threatened or endangered. 2. the fur or pelt of this animal. 3. any of various related cats resembling this animal. 4. Heraldry. a lion […]
- Leon trotsky
[trot-skee; Russian trawt-skyee] /ˈtrɒt ski; Russian ˈtrɔt skyi/ noun 1. Leon (Lev or Leib, Davidovich Bronstein) 1879–1940, Russian revolutionary and writer: minister of war 1918–25. /ˈtrɒtskɪ/ noun 1. Leon, original name Lev Davidovich Bronstein. 1879–1940, Russian revolutionary and Communist theorist. He was a leader of the November Revolution (1917) and, as commissar of foreign affairs […]