ballistic missile al*lis"tic mis`sile, n. 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}.

Note: Ballistic missiles are sometimes referred to by their range, such as an

{intercontinental ballistic missile} ({ICBM}) or an

{intermediate range ballistic missile} ({IRBM}). [PJC]

The Collaborative International Dictionary of English. 2000.