Definition of anti-proliferation in US English:

anti-proliferation

adjective

  • 1Designating an agreement or other measure intended to limit or halt the proliferation of nuclear weapons.

  • 2Of or designating a person or group opposed to the proliferation of nuclear weapons, especially their acquisition by countries currently without them.

Origin

1960s; earliest use found in The Times. From anti- + proliferation.

Pronunciation

anti-proliferation

/ˌantiprəlɪfəˈreɪʃn/