nuclear energy
noun🔊/ˌnjuːkliər ˈenədʒi/
🔊/ˌnuːkliər ˈenərdʒi/
(also nuclear power, atomic energy, atomic power)
[uncountable]a powerful form of energy produced by changing matter into energy by splitting the nuclei (= central parts) of atoms. It is used to produce electricity. 核能；原子能