Definitions of meson
  1. noun
    an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0
    synonyms: mesotron
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    exceedingly short-lived meson
    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
    pi-meson, pion
    a meson involved in holding the nucleus together; produced as the result of high-energy particle collision
    type of:
    any particle that obeys Bose-Einstein statistics but not the Pauli exclusion principle; all nuclei with an even mass number are bosons
    any elementary particle that interacts strongly with other particles
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