noun
nuclear-weapon state
A country that possesses nuclear weapons. Often used in contrast with 非核兵器国 (non-nuclear-weapon state).
See also: 非核兵器国
核兵器国は核軍縮の責任を負っている。
Nuclear-weapon states bear the responsibility for nuclear disarmament.
This treaty distinguishes between nuclear-weapon states and non-nuclear-weapon states.