ravelin

名词 n.
中文释义

英文释义

名词 n.
  1. An outwork. A fortification outside a castle used to split an attacking force; composed of two faces, forming a salient angle whose gorge resembles a half-moon
    — It is about 2,500 yards in circuit, is built of red stone, and, according to Von Orlich, is now " a bastioned quinquangle ; the ancient walls with semicircular bastions face the two streams ; the land side is quite regular, and consists of two bastions, and a half-bastion with three ravelins," and stands higher than any ground in face of it.

词形变化

ravelins plural

词源

From French ravelin, from Italian rivellino, of unclear origin: perhaps from Latin re- + vallum.
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