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/berrm/, n.1. Also, berme. Fort. a horizontal surface between the exterior slope of a rampart and the moat.2. Also called bench. any level strip of ground at the summit or sides, or along the base, of a slope.3. Also called backshore, beach berm. a nearly flat back portion of a beach, formed of material deposited by the action of the waves.4. Chiefly Indiana, Ohio, Pennsylvania, and West Virginia. the bank of a canal or the shoulder of a road.5. Chiefly Alaska. a mound of snow or dirt, as formed when clearing land.6. a bank of earth placed against an exterior wall or walls of a house or other building as protection against extremes of temperature.v.t.7. to cover or protect with a berm: The side walls were bermed to a height of three feet.[1720-30; < F berme < D berm; akin to BRIM1]
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▪ geologyterrace of a beach that has formed in the backshore, above the water level at high tide. Berms are commonly found on beaches that have fairly coarse sand and are the result of the deposition of material by low-energy waves. They have a marked change of slope at their seaward edge and a flat or reverse-sloped platform that lies slightly higher than the mean high-water level. On broad beaches there may be three or more subparallel berms, each formed under different wave conditions. On some beaches a berm several metres wide may be laid down each summer and destroyed each winter by high storm waves.* * *
Universalium. 2010.