ICBM

from WordNet (r) 3.0 (2006)

ICBM
    n 1: a ballistic missile that is capable of traveling from one
         continent to another [syn: {intercontinental ballistic
         missile}, {ICBM}]

from The Collaborative International Dictionary of English v.0.48

ICBM \ICBM\ n. [acronym intercontinental ballistic missile]
   An intercontinental ballistic missile, a long-range ballistic
   missile that is capable of traveling from one continent to
   another. Contrasted with {IRBM}.

   Syn: intercontinental ballistic missile.
        [WordNet 1.5]

from The Collaborative International Dictionary of English v.0.48

ballistic missile \bal*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]