ˈ ̷ ̷ˌ ̷ ̷ also ˈ ̷ ̷ˈ ̷ ̷ noun
1. : the moon at the quarters when half its disk appears illuminated — see moon illustration
2. : a figure or object that is pointed at both ends, is about a fourth as wide as it is long, and in plane outline is half of a circle with the straight section curved in so that one side is concave while the other is convex
an island half-moon
3. : the lunule of a fingernail
4.
a. : a bluish black California marine food fish ( Medialuna californiensis ) of the family Scorpididae — called also blue perch
b. : scalare