a missile that is guided in the first part of its flight but falls freely as it approaches target
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
of the motion of objects moving under their own momentum
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
a weapon that is forcibly thrown or projected at a target
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
a former communist country in eastern Europe and northern Asia; established in 1922; included Russia and 14 other soviet socialist republics (Ukraine and Byelorussia and others); officially dissolved 31 December 1991
The concept was to form a defensive shield against a nuclear missile attack from the Soviet Union (U.S.S.R.).
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
relating to an elaborate and systematic plan of action
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
the federal department responsible for safeguarding national security of the United States; created in 1947
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
progress or evolve through a process of natural growth
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
being changed over time, as to be stronger or more complete
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
the federal department in the United States that sets and maintains foreign policies
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
a group of independent elements comprising a unified whole
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.
at or near the beginning of a period of time or course of events or before the usual or expected time
The Strategic Defense Initiative (SDI) was an anti-ballistic missile system developed by the United States in the 1980s and early 1990s during the Reagan administration.