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Nu'clear Test'-Ban Trea"ty

an agreement signed by Britain, the Soviet Union, and the U.S. in 1963, committing nations to halt atmospheric tests of nuclear weapons: by the end of 1963, 96 additional nations had signed the treaty.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Nuclear Regulatory Commissionnuclear warhead
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