A flat tablet or ledge of any material set horizontally at a distance from the floor, to hold objects of use or ornament.
A sand bank in the sea, or a rock, or ledge of rocks, rendering the water shallow, and dangerous to ships.
A stratum lying in a very even manner; a flat, projecting layer of rock.
The wide, flat underwater regions at the edges of many continents.
a projecting ridge on a mountain or submerged under water
an offshore extension of a continent, gently sloping (with a gradient of less than one degree)
a thin, flat component fastened at intervals within the cabinet
The shallower, marginal part of a sedimentary basin.
English shelf "border, edge" Continental shelf, the edge of continents below the surface of the ocean, which expand from the coast to the start of the continental slope (from about 200 metres depth), which are strongly steep and extend towards the deep-sea. It has an increasing role in the world's rock oil and natural gas supplement.
a zone adjacent to a continent (or around an island) that extends from the low water line to a depth at which there is usually a marked increase of slope towards oceanic depths SHFU
The edges of continental land masses, now covered with sea water; generally the most productive part of the sea.
a ledge of land or rock, especially a submerged ledge or bedrock; continental shelf [AHDOS