'ICBM' definitions:

Definition of 'ICBM'

From: WordNet
noun
A ballistic missile that is capable of traveling from one continent to another [syn: intercontinental ballistic missile, ICBM]

Definition of 'ICBM'

From: GCIDE
  • 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]

Definition of 'ICBM'

From: GCIDE