elementary particle

Definitions of elementary particle
  1. noun
    (physics) a particle that is less complex than an atom; regarded as constituents of all matter
    synonyms: fundamental particle
    see moresee less
    types:
    show 27 types...
    hide 27 types...
    antilepton
    the antiparticle of a lepton
    antiparticle
    a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy
    antiquark
    the antiparticle of a quark
    hadron
    any elementary particle that interacts strongly with other particles
    lepton
    an elementary particle that participates in weak interactions; has a baryon number of 0
    quark
    (physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3
    strange particle
    an elementary particle with non-zero strangeness
    cosmic string, string
    (cosmology) a hypothetical one-dimensional subatomic particle having a concentration of energy and the dynamic properties of a flexible loop
    WIMP, weakly interacting massive particle
    a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation; postulated as a constituent of the dark matter of the universe
    antibaryon
    the antiparticle of a baryon; a hadron with a baryon number of -1
    antimeson
    the antiparticle of a meson
    antimuon, positive muon
    the antiparticle of a muon; decays to positron and neutrino and antineutrino
    antineutrino
    the antiparticle of a neutrino
    antitauon, tau-plus particle
    an antilepton of very great mass
    baryon, heavy particle
    any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1
    beauty quark, bottom quark
    a quark with a charge of -1/3 and a mass about 10,000 times that of an electron
    charm quark
    a quark with an electric charge of +2/3 and a mass 2900 times that of an electron and a charm of +1
    down quark
    a stable quark with an electric charge of -1/3 and a mass 607 times that of an electron
    electron, negatron
    an elementary particle with negative charge
    meson, mesotron
    an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0
    mu-meson, muon, negative muon
    an elementary particle with a negative charge and a half-life of 2 microsecond; decays to electron and neutrino and antineutrino
    neutrino
    an elementary particle with zero charge and zero mass
    antielectron, positron
    an elementary particle with positive charge; interaction of a positron and an electron results in annihilation
    squark, strange quark
    a quark with an electric charge of -1/3 and a mass 988 times that of an electron and a strangeness of -1
    tau-minus particle, tauon
    a lepton of very great mass
    top quark, truth quark
    a hypothetical quark with a charge of +2/3 and a mass more than 100,000 times that of an electron
    up quark
    a stable quark with an electric charge of +2/3 and a mass 607 times that of an electron
    type of:
    particle, subatomic particle
    a body having finite mass and internal structure but negligible dimensions
Word Family