Definitions of hadron
  1. noun
    any elementary particle that interacts strongly with other particles
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    the antiparticle of a baryon; a hadron with a baryon number of -1
    the antiparticle of a meson
    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
    meson, mesotron
    an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0
    exceedingly short-lived meson
    any baryon that is not a nucleon; unstable particle with mass greater than a neutron
    J particle, psi particle
    a neutral meson with a large mass
    K particle, k-meson, kaon, kappa-meson
    an unstable meson produced as the result of a high-energy particle collision
    a constituent (proton or neutron) of an atomic nucleus
    pi-meson, pion
    a meson involved in holding the nucleus together; produced as the result of high-energy particle collision
    type of:
    elementary particle, fundamental particle
    (physics) a particle that is less complex than an atom; regarded as constituents of all matter
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