Ravelin

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Half-moon \Half"-moon`\ (-m[=oo]n`), n.
     1. The moon at the quarters, when half its disk appears
        illuminated.
        [1913 Webster]
  
     2. The shape of a half-moon; a crescent.


        [1913 Webster]
  
              See how in warlike muster they appear,
              In rhombs, and wedges, and half-moons, and wings.
                                                    --Milton.
        [1913 Webster]
  
     3. (Fort.) An outwork composed of two faces, forming a
        salient angle whose gorge resembles a half-moon; -- now
        called a {ravelin}.
        [1913 Webster]
  
     4. (Zool.) A marine, sparoid, food fish of California
        ({C[ae]siosoma Californiense}). The body is ovate,
        blackish above, blue or gray below. Called also
        {medialuna}.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Ravelin \Rave"lin\ (r[a^]v"l[i^]n; 277), n. [F.; cf. Sp.
     rebellin, It. revellino, rivellino; perhaps fr. L. re- again
     + vallum wall.] (Fort.)
     A detached work with two embankments which make a salient
     angle. It is raised before the curtain on the counterscarp of
     the place. Formerly called {demilune} and {half-moon}.
     [1913 Webster]