tardyonWiktionary 原文英/ˈtɑː.di.ɒn/美/ˈtɑr.di.ɑn/构词拆解tardy词干+tachyon词干也可拆解为tardytardy词干on-on后缀-on(physics, mathematics) Forming nouns denoting subatomic particles and quanta.词源说明Blend of tardy + tachyon or tardy + -on.释义名词noun1(physics) Any particle with non-zero mass (i.e. one that travels more slowly than the speed of light).同族词派生词 1tardyonic