[ an-tee-pruh-lif-uh-rey-shuh n ]
/ ˌæn ti prəˌlɪf əˈreɪ ʃən /
opposing an increase in nuclear weapons, especially in allowing additional countries to obtain them.
taking or containing measures to curb nuclear proliferation: to sign the antiproliferation treaty.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019