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say it: nahn-pruh-lif-ur-AY-shuhn
nonproliferation is a noun meaning "the prevention of something increasing or spreading (especially the prevention of an increase in the number of countries possessing nuclear weapons)". It carries one recorded sense.
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”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for nonproliferation come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.