/ Dictionary / Index S sea-launched ballistic missile: Meaning and Definition of Find definitions for: sea'-launched ballis'tic mis'sile Pronunciation: (sē'lôncht", -läncht"), [key] a ballistic missile designed for launch by a submarine or surface ship. Abbr.: SLBM, S.L.B.M. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sealant sea-launched cruise missile Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language