embankment

Definitions of embankment
  1. noun
    a long artificial mound of stone or earth; built to hold back water or to support a road or as protection
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    examples:
    Antonine Wall
    a fortification 37 miles long across the narrowest part of southern Scotland (between the Firth of Forth and the Firth of Clyde); built in 140 to mark the frontier of the Roman province of Britain
    Great Wall of China
    a fortification 1,500 miles long built across northern China in the 3rd century BC; it averages 6 meters in width
    types:
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    levee
    an embankment that is built in order to prevent a river from overflowing
    bulwark, rampart, wall
    an embankment built around a space for defensive purposes
    bailey
    the outer defensive wall that surrounds the outer courtyard of a castle
    battlement, crenelation, crenellation
    a rampart built around the top of a castle with regular gaps for firing arrows or guns
    earthwork
    an earthen rampart
    fraise
    sloping or horizontal rampart of pointed stakes
    merlon
    a solid section between two crenels in a crenelated battlement
    type of:
    hill, mound
    structure consisting of an artificial heap or bank usually of earth or stones
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