/ Dictionary / Index S sea-level pressure: Meaning and Definition of Find definitions for: sea'-lev•el pres"sure Pronunciation: (sē'lev"ul), [key] the atmospheric pressure, at any elevation, reduced by formula to a value approximating the pressure at sea level. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sea level sealift Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language