/ Dictionary / Index S seafloor: Meaning and Definition of Find definitions for: sea•floor Pronunciation: (sē'flôr", -flōr"), [key] — n. the solid surface underlying a sea or an ocean. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sea fire sea foam Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language