Definitions

from The Century Dictionary.

  • noun A detached triangular work in fortification, with two embankments which form a projecting angle.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Fort.) A detached work with two embankments which make a salient angle. It is raised before the curtain on the counterscarp of the place. Formerly called demilune and half-moon.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun 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

Etymologies

Sorry, no etymologies found.

Examples

  • From the land side, it was only approachable by a causeway across the swamp, and this was guarded by a strong ravelin, which is the military name for an outwork erected beyond the ditch of a fortress.

    With Clive in India Or, The Beginnings of an Empire

  • I would also have you acquire a general notion of fortification; I mean so far as not to be ignorant of the terms, which you will often hear mentioned in company, such as ravelin, bastion; glacis, contrescarpe, etc.

    Letters to his son on The Art of Becoming a Man of the World and a Gentleman

  • I would also have you acquire a general notion of fortification; I mean so far as not to be ignorant of the terms, which you will often hear mentioned in company, such as ravelin, bastion; glacis, contrescarpe, etc.

    Letters to His Son on the Art of Becoming a Man of the World and a Gentleman, 1749

  • I would also have you acquire a general notion of fortification; I mean so far as not to be ignorant of the terms, which you will often hear mentioned in company, such as ravelin, bastion; glacis, contrescarpe, etc.

    Complete Project Gutenberg Earl of Chesterfield Works

  • If the Tsar forbore to execute the darkest of the terroristprinces who had been caught up in his nets, Sergei Nechaev, it was perhaps because he could not decide whether it would bemore agreeable to kill him outright or bury him alive in a ravelin of the Fortress of Peter and Paul.1

    FORGE OF EMPIRES 1861-1871

  • If the Tsar forbore to execute the darkest of the terroristprinces who had been caught up in his nets, Sergei Nechaev, it was perhaps because he could not decide whether it would bemore agreeable to kill him outright or bury him alive in a ravelin of the Fortress of Peter and Paul.1

    FORGE OF EMPIRES 1861-1871

  • And he laid his hand, as Drayton might have said, on that stout bastion, hornwork, ravelin, or demilune, which formed the outworks to the citadel of his purple isle of man.

    Westward Ho!

  • If the Tsar forbore to execute the darkest of the terroristprinces who had been caught up in his nets, Sergei Nechaev, it was perhaps because he could not decide whether it would bemore agreeable to kill him outright or bury him alive in a ravelin of the Fortress of Peter and Paul.1

    FORGE OF EMPIRES 1861-1871

  • If the Tsar forbore to execute the darkest of the terroristprinces who had been caught up in his nets, Sergei Nechaev, it was perhaps because he could not decide whether it would bemore agreeable to kill him outright or bury him alive in a ravelin of the Fortress of Peter and Paul.1

    FORGE OF EMPIRES 1861-1871

  • In fact, when I know what is meant by “mamelon” and “ravelin

    Think Progress » Pelosi and Reid say no

Comments

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  • "A detached triangular work in fortification, with two embankments which form a projecting angle. In the figure BB is the ravelin, with A its redout, and CC its ditch. DD is the main ditch of the fortress, and E the passage giving access from the fortress to the ravelin." --CD&C

    January 30, 2012