In fortification, a ravelin is the work constructed beyond the main ditch, opposite the curtain, composed of two faces, forming a salient angle, and two demi-gorges, formed by a counterscarp. It is separated from the covered way by a ditch which runs into the main ditch. See 'demi-lune.'
Related term(s): Curtain; Angle, Salient; Demi-gorge; Counterscarp; Demi-lune; Half-moon
Category: Castles and Fortifications
Source information: Wilhelm, Thomas. A Military Dictionary and Gazetteer. Philadelphia: L.R. Hamersly & Co., 1881. 477.
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