Breadcrumb Home > Dictionary > Index I intercontinental ballistic missile: Meaning and Definition of Find definitions for: intercontinen'tal ballis'tic mis'sile Pronunciation: [key] any supersonic missile that has a range of at least 3500 nautical mi. (6500 km) and follows a ballistic trajectory after a powered, guided launching. Abbr.: ICBM, I.C.B.M. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. intercontinental interconversion ✖ Related Content Daily Word Quiz: hortatory Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language