Half"-moon`, n.

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. Zool.

A marine, sparoid, food fish of California (Caesiosoma Californiense). The body is ovate, blackish above, blue or gray below. Called also medialuna.

 

© Webster 1913.

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