kaon
kaon definition
kaon (kā′än′)
noun
Particle Physics any of four short-lived mesons that are positive, negative, or neutral and have a mass of 495 MeV/c (about 970 times that of an electron)
Etymology: Ka (the letter K) + (mes)on
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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