Origin: Latin suffix -tion
Nonproliferation has 2 different meanings across 1 category:
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"
stopping proliferation of nuclear weapons.