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单词 kaon
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ka•on  (kā′on),USA pronunciation n. [Physics.]
  1. Physicsa meson with strangeness +1 and either positive or zero electric charge, or its antiparticle, with strangeness -1 and either negative or zero electric charge. Symbol: K  Also called K meson, K-meson. 
  • ka- (spelling, spelled of name of letter k) + (mes)on 1955–60
ka•on′ic, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
kaon /ˈkeɪɒn/ n
  1. a meson that has a positive or negative charge and a rest mass of about 966 electron masses, or no charge and a rest mass of 974 electron masses
    Also called: K-meson
Etymology: 20th Century: ka representing the letter k + ( mes) on
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更新时间：2024/11/10 8:17:08