nonproliferation
1. [ noun ] the prevention of something increasing or spreading (especially the prevention of an increase in the number of countries possessing nuclear weapons)
Synonyms: non-proliferation
Examples:

"they protested that the nonproliferation treaty was just a plot to maintain the hegemony of those who a

Related terms: proliferation prevention
Similar spelling:   non-proliferation
  nonprofessional
  nonprotractile
  nonoperational