| Noun | 1. | non-proliferation - the prevention of something increasing or spreading (especially the prevention of an increase in the number of countries possessing nuclear weapons); "they protested that the nonproliferation treaty was just a plot to maintain the hegemony of those who already had nuclear weapons"; "nuclear disarmament and nonproliferation are closely related goals" Synonyms: nonproliferation Antonyms: proliferation - a rapid increase in number (especially a rapid increase in the number of deadly weapons); "the proliferation of nuclear weapons" |
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