Backshore

(1) The upper part of the active BEACH above the normal reach of the tides (high water), but affected by large waves occurring during a high. (2) (SMP) The accretion or erosion zone, located landward of ordinary high tide, which is normally wetted only by storm tides.
Found on http://www.ecy.wa.gov/programs/sea/swces/products/glossary.htm

Backshore

The area of a beach between normal high tide level and the highest point reached by marine action such as storm waves.
Found on http://www.quartznall.co.uk/azhealthguide.htm

backshore

(from the article `coastal landforms`) ...profile typically can be divided into two distinct parts: (1) the seaward and relatively steep sloping foreshore, which is essentially the ...
Found on http://www.britannica.com/eb/a-z/b/4

Backshore

The backshore area of a beach extending from the limit of high water foam lines to dunes or extreme inland limit of the beach. It is only affected by waves during exceptional high tides or severe storms. Sediments in this area are well-sorted and well rounded.Its grain sizes are mainly coarse sand and medium sand, which are larger than that in lit...
Found on http://en.wikipedia.org/wiki/Backshore

Backshore

Area behind the shore. This coastal feature is located between the beach berm and the backshore slope.
Found on http://www.physicalgeography.net/physgeoglos/b.html

backshore

backshore: see beach.
Found on http://www.infoplease.com/ce6/sci/A0910592.html

backshore

The portion of a beach that extends from the high-tide line inland to the sea cliff or vegetation line. Swash reaches the backshore only during major storms.
Found on http://www.inlandlapidary.com/user_area/glossaryB.asp

Backshore

The upper part of the active Beach above the normal reach of the tides (high water), but affected by large waves occurring during a high.
Found on http://www.stripers247.com/Fishing-Glossary.php
No exact match found