Coupure

//kuːˈpjʊɚ// noun

Definitions

Noun
  1. 1
    A passage cut through the glacis to facilitate sallies by the besieged.

    "It will be observed here, that the coupure is not cut through the scarp revetment of the face of the bastion, although it is necessary for it to go through the thickness of the parapet"

Etymology

French, from couper (“to cut”).

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