AskDefine | Define ravelin

User Contributed Dictionary

English

Noun

  1. A fortification outside a castle used to split an attacking force; composed of two faces, forming a salient angle whose gorge resembles a half-moon

Extensive Definition

A ravelin is a triangular fortification or detached outwork in front of the bastions of a fortress. Originally called a demi-lune, after lunette, the ravelin is placed outside a castle opposite a fortification curtain. The edges of the ravelin are placed so that the guns there can sweep fire upon the troops that have to run along the fortification curtain. The wall facing the castle/fort is low and the angles of the others such that the ravelin provides no shelter to attacking forces if taken or abandoned by defenders.
ravelin in Belarusian (Tarashkevitsa): Равэлін
ravelin in Danish: Ravelin
ravelin in German: Ravelin
ravelin in Spanish: Revellín
ravelin in French: Demi-lune
ravelin in Croatian: Revelin
ravelin in Italian: Ravellino
ravelin in Lithuanian: Ravelinas
ravelin in Dutch: Ravelijn
ravelin in Polish: Rawelin
ravelin in Portuguese: Revelim
ravelin in Russian: Равелин
ravelin in Swedish: Ravelin
ravelin in Ukrainian: Равелін
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