meson

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
    see moresee less
    types:
    show 4 types...
    hide 4 types...
    b-meson
    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:
    boson
    any particle that obeys Bose-Einstein statistics but not the Pauli exclusion principle; all nuclei with an even mass number are bosons
    hadron
    any elementary particle that interacts strongly with other particles
Word Family
EDITOR’S CHOICE

Test prep from the experts

Boost your test score with programs developed by Vocabulary.com’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.

SAT/PSAT

$29.95
  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week

TOEFL

$29.95
  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week