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Definition of Half-moon
1. Noun. The crescent-shaped area at the base of the human fingernail.
2. Noun. The time at which the Moon is at first or last quarter when half its face is illuminated.
Generic synonyms: Phase Of The Moon
Specialized synonyms: First Quarter, Last Quarter
Definition of Half-moon
1. Noun. the moon, in its first or last quarter, when only half the face is illuminated ¹
2. Noun. anything shaped like a crescent, especially the base of a fingernail ¹
¹ Source: wiktionary.com
Medical Definition of Half-moon
1.
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. An outwork composed of two faces, forming a salient angle whose gorge resembles a half-moon; now called a ravelin.
4.