a V-shaped outwork outside the main ditch and covering the works between two bastions.
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How to use ravelin in a sentence
ravelin, rav′lin, n. a detached work with two embankments raised before the counterscarp.
On going a little further, we came opposite to the ravelin, which had been my chief annoyance during my last days' piquet.
This had the further advantage of giving great saliency to the ravelin for cross-fire over the terrain of the attack.
The ravelin is here introduced, and made so large that its faces are in prolongation of those of the bastions.
The caponier is the vital point of the front, and is protected in important works by a ravelin and keep.
British Dictionary definitions for ravelin
fortifications an outwork having two embankments at a salient angle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012