Definition of nuclear option noun from the Oxford Advanced Learner's Dictionary


nuclear option

BrE BrE//ˈnjuːkliər ɒpʃn//
; NAmE NAmE//ˈnuːkliər ɑːpʃn//
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the most extreme possible response to a particular situation Currency controls would be the nuclear option.
See the Oxford Advanced American Dictionary entry: nuclear option