Kaon

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The American Heritage® Dictionary of the English Language, 4th Edition
  • n. Any of a subgroup of unstable mesons that consist of an electrically charged form with a mass 966 times that of an electron and a neutral form with a mass 974 times that of an electron, produced as a result of a high-energy particle collision. Also called K-meson. See Table at subatomic particle.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. any of four unstable subatomic particles, mesons, they are a combination of a strange quark or antiquark and either an up or down quark or antiquark
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • n. an unstable meson produced as the result of a high-energy particle collision
  • Hypernym
    Words that are more generic or abstract
    meson    mesotron