/ Dictionary / Index S seamount: Meaning and Definition of Find definitions for: sea•mount Pronunciation: (sē'mount"), [key] — n. a submarine mountain rising several hundred fathoms above the floor of the sea but having its summit well below the surface of the water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: seamount (Thesaurus) seamoth sea mouse Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language