Wall or embankment, constructed at right angles to the shoreline, that projects out into the water; a shoreline protective device (California Coastal Commission 1987)
The contact between the upstream or downstream face of a dam and the abutments The area along the contact (or intersection) of the face of a dam with the abutments Recreation trails have caused erosion along the groin of Soldier Canyon and Dixon Canyon Dams
(1) A shore-protection structure (built usually to trap littoral drift or retard erosion of the shore) It is narrow in width (measured parallel to the shore) and its length may vary from tens to hundreds of meters (extending from a point landward of the shoreline out into the water) groins may be classified as permeable (with openings through them) or impermeable (a solid or nearly solid structure) (2) (SMP) A barrier-type structure extending from the backshore or stream bank into a water body for the purpose of the protection of a shoreline and adjacent upland by influencing the movement of water and/or deposition of materials
A barrier built on a beach at right angles to the water's edge and entering the sea It reduces local erosion by holding back the currents that tend to carry sediments along the beach, but deprives downshore areas of sand
A low artificial wall-like structure of durable material extending from the land to seaward for a particular purpose, such as to prevent coast erosion (6)
the crease at the junction of the inner part of the thigh with the trunk together with the adjacent region and often including the external genitals build with groins; "The ceiling was groined
A structure that juts out into a body of water perpendicular to the shoreline and is built to restore an eroding beach by intercepting longshore drift and trapping sand