ravelin
ra
ˈræ
رَ
ve
وی
lin
ˌlɪn
لین
British pronunciation
/ɹˈævɪlˌɪn/

تعریف و معنی "ravelin"در زبان انگلیسی

Ravelin
01

استحکامات مثلثی جلو قلعه

a triangular or polygonal fortification with a raised platform located outside the main defensive walls of a fortress, used to defend the approach and provide additional protection against enemy attacks
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