名詞 kaon:

1. an unstable meson produced as the result of a high-energy particle collision
   同義詞：kappa-meson, k-meson, K particle

ka.on

n.Abbr. K（名詞）縮寫 K
An unstable meson produced either in an electrically charged form with a mass 9'' times that of an electron or in a neutral form with a mass 974 times that of an electron as a result of a high-energy particle collision.Also called K-meson See table at subatomic particle
K介子：一種不穩(wěn)定的介子，由于高能粒子碰撞，在帶電結(jié)構(gòu)中產(chǎn)生，其質(zhì)量為一個電子的9''倍；或在不帶電的結(jié)構(gòu)中產(chǎn)生，其質(zhì)量為一個電子的974倍也作 K-meson參見 subatomic particle

來源：
ka [pronunciation of the letter] k
ka [字母] K的發(fā)音
-on
-on