メソンメソンMeanings1nounmesonphysicsTechnical term in particle physics for a subatomic particle composed of a quark and an antiquark.中ちゅう間かん子しはメソンとも呼よばれる。Mesons are also called メソン.パイ中ちゅう間かん子しは最もっとも軽かるいメソンの一ひとつだ。The pion is one of the lightest mesons.
