Half-moon
Pronunciation : Half"-moon`
Part of Speech : n.
Definition : 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.)
Defn: An outwork composed of two faces, forming a salient angle whose gorge resembles a half-moon; -- now called a ravelin.
4. (Zo?l.)
Defn: A marine, sparoid, food fish of California (C?siosoma Californiense). The body is ovate, blackish above, blue or gray below. Called also medialuna.
Source : Webster's Unabridged Dictionary, 1913