Definition of ravelin in English:

ravelin

noun

historical
  • An outwork of fortifications, with two faces forming a salient angle, constructed beyond the main ditch and in front of the curtain.

    • ‘Madam, we require your presence on the north-western ravelin immediately.’
    • ‘A ravelin is a V shaped fortification used to protect the entrance of a fort.’
    • ‘Detached works called ravelins or (from their appearance) demi-lunes (half-moons) often stood out in front of the curtain between the bastions, and sometimes extra works formed an extra outer skin of fortifications.’
    rampart, defensive wall, defences, bulwark, palisade, stockade, redoubt, earthwork, outwork, bastion, parapet, battlement, blockhouse, barricade, buttress, stronghold
    View synonyms

Origin

Late 16th century: from French, from obsolete Italian ravellino, of unknown origin.

Pronunciation

ravelin

/ˈravlɪn/