Dictionary
back•shore
Pronunciation: (bak'shôr", -shōr"), [key]—
n. Geol.
1. the zone of the shore or beach above the high-water line, acted upon only by severe storms or exceptionally high tides.
2. the area immediately adjacent to a sea cliff.
3. berm (def. 3).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.