/ Dictionary / Index B backshore: Meaning and Definition of Find definitions for: back•shore Pronunciation: (bak'shôr", -shōr"), [key] — n. Geol. the zone of the shore or beach above the high-water line, acted upon only by severe storms or exceptionally high tides. the area immediately adjacent to a sea cliff. berm (def. 3). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. back shaft backside Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language