 2 definitions found
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Half-moon \Half"-moon'\ (-m[=oo]n'), noun
1. The moon at the quarters, when half its disk appears
illuminated.
2. The shape of a half-moon; a crescent.
See how in warlike muster they appear,
In rhombs, and wedges, and half-moons, and wings.
--Milton.
3. (Fort.) An outwork composed of two faces, forming a
salient angle whose gorge resembles a half-moon; -- now
called a {ravelin}.
4. (Zo["o]l.) A marine, sparoid, food fish of California
({C[ae]siosoma Californiense}). The body is ovate,
blackish above, blue or gray below. Called also
{medialuna}.
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Ravelin \Rave"lin\ (r[a^]v"l[i^]n; 277), noun [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}.
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