Voir les mots dérivés de ravelin.
Aucune définition officielle pour le moment...
(Military / Fortifications) Fortifications an outwork having two embankments at a salient angle. [from Italian ravellino a little bank, from riva bank, from Latin r?pa].
http://www.thefreedictionary.com/ravelin
a detached work formerly used in fortifications and consisting of two embankments forming a salient angle in front of the curtain of the fortified position ...
http://www.thefreedictionary.com/ravelin
A ravelin is a triangular fortification or detached outwork, located in front of the innerworks of a fortress (the curtain walls and bastions). Originally called a ...
http://www.merriam-webster.com/dictionary/ravelin
A ravelin is a small outwork used to protect the inner defenses of a fortification.
http://www.merriam-webster.com/dictionary/ravelin
ravelin définition, synonymes, conjugaison, voir aussi 'ravélien',ravélienne',ravin', ravine', expression, exemple, usage, synonyme, antonyme, contraire, ...
http://militaryhistory.about.com/od/glossaryofmilitaryterms/g/Ravelin.htm
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http://militaryhistory.about.com/od/glossaryofmilitaryterms/g/Ravelin.htm