The meaning of LUNE is the part of a plane surface bounded by two intersecting arcs or of a spherical surface bounded by two great circles.

Formally, a lune is the relative complement of one disk in another (where they intersect but neither is a subset of the other). Alternatively, if and are disks, then is a lune.

LUNE definition: anything shaped like a crescent or a half moon. See examples of lune used in a sentence.

lune in American English (lun ) noun Origin: Fr < L luna, the moon: see light 1 a crescent-shaped figure on a plane or spherical surface

lune (lun) n. a crescent-shaped figure bounded by two arcs of circles, either on a flat or spherical surface.

Dec 25, 2025 · lune (uncountable) (astronomy, sometimes capitalised) The celestial body closest to the Earth, considered to be a planet in the Ptolemic system as well as the boundary between the Earth …

Lune definition: A crescent-shaped portion of a plane or sphere bounded by two arcs of circles.

Definition of LUNE in the Definitions.net dictionary. Meaning of LUNE. What does LUNE mean? Information and translations of LUNE in the most comprehensive dictionary definitions resource on …

lune (n.) "figure formed by two arcs of circles; anything in the shape of a crescent or half-moon," 1704, from Latin luna "moon; crescent-shaped badge" (see luna).

lune: A crescent-shaped portion of a plane or sphere bounded by two arcs of circles.