/ · 1894 Brewer’s · R · Ravelin (The) or demi-lune
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in fortification. A work with two faces, forming a salient angle, placed beyond the main ditch, opposite the curtain (q.v.), and separated from the covered way (q.v.) by a ditch which runs into the main ditch.
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Entry taken from Dictionary of Phrase and Fable, edited by the Rev. E. Cobham Brewer, LL.D. and revised in 1895.
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