nuclear/ˋnuklIɚ; ˈnjuːkliə/adj 1 relating to or involving the NUCLEUS (=central part) of an atom, or the energy produced when the nucleus of an atom is either split or joined with the nucleus of another atom (原子)核的﹔核能的: a nuclear power station 核电站France relies on nuclear energy . 法国依赖核能。nuclear physics 核物理学2 relating to or involving the use of weapons that use nuclear energy 核武器的: a nuclear war 核战争nuclear weapons 核武器a nuclear bomb 核弹