longshore bar

longshore bar
   1) A low, elongate sand ridge, built chiefly by wave action, occurring at some distance from, and extending generally parallel with, the shoreline. They are submerged at least by high tides and are typically separated from the beach by an intervening trough.
   GG
   2) [ relict ]
   A narrow, elongate, wave-built sand ridge that originally rose near to, or barely above, the surface of a body of water, and extended generally parallel to the shore but was separated from it by an intervening trough.
   SW & GG

Glossary of landform and geologic terms. 2013.

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