Home/nucleonnucleon/noo-klee-on, nyoo-/US // ˈnu kliˌɒn, ˈnyu- //UK // (ˈnjuːklɪˌɒn) //核子,核素,核电Definitionsn.名词 noun1 Physics.: a proton or neutron, especially when considered as a component of a nucleus. Level 3Browse all words →