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a separate enclosed triangular fortification work, situated in front of the moat, in the interval between the bastions.

The ravelin was designed to cover a section of the fortress wall (curtain), the fortress gates, and other structures from artillery fire and attacks of the enemy. It was also used for cross fire at the approaches to the perimeter of the fortress, for fire support for neighboring bastions, and for an assembly point for troop sallies. Ravelins were used from the 16th to early 20th centuries.

ravelin, demilune

In fortifications, a projecting outwork forming a salient angle.
References in periodicals archive ?
Conservation works at the Ravelin Bastion and the Land Gate, a significant part of Famagusta's cultural heritage, were completed recently and the bicommunal Technical Committee on Cultural Heritage plans to mark the event with a ceremony on June 19.
Revealed during excavation, it led to the ravelin protecting the city gate.