Definition of nonproliferation noun from the Oxford Advanced American Dictionary

 

nonproliferation

 noun
noun
NAmE//ˌnɑnprəˌlɪfəˈreɪʃn//
 
[uncountable]
 
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a limit to the increase in the number of nuclear and chemical weapons that are produced a nuclear nonproliferation agreement/treaty The government seeks to promote nonproliferation and disarmament.