Make Our Dictionary Yours
Sign up for our weekly newsletters and get:
By signing in, you agree to our Terms and Conditions and Privacy Policy.
Success!
We'll see you in your inbox soon.
A system proposed by U.S. President Ronald Reagan on March 23, 1983, to use ground-based and space-based systems to protect the United States from attack by strategic nuclear ballistic missiles. Abbreviation: SDI.
Find similar words to strategic-defense-initiative using the buttons below.
