ballistic missile(n = noun.artifact) - a missile that is guided in the first part of its flight but falls freely as it approaches target;
is a kind of missile
has particulars: icbm, intercontinental ballistic missile

   A rocket-propelled missile of long range which is guided only during the powered portion of its flight, which usually takes only a small part of the total flight time; -- contrasted with guided missile.
"Ballistic missiles are sometimes referred to by their range, such as an intercontinental ballistic missile (ICBM) or an intermediate range ballistic missile (IRBM)." [PJC]

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