Closed figure with straight sides.

Alternative spelling of polygon mesh [(computer graphics) A collection of vertices, edges and faces that defines the shape of a polyhedral object.]

a technique of stone wall construction.

Numbers represented by dot polygons.

Numbers representable as polygon vertices.

a type of gun barrel rifling where the traditional sharp-edged "lands and grooves" are replaced by less pronounced "hills and valleys", so the barrel bore has a polygonal (usually hexagonal or octagonal) cross-sectional profile.

In geometry, a polygonal chain is a connected series of line segments.

(historical) A kind of fortification without bastions, and generally arranged in a ring around the protected area, originating in France in the late 18th century and fully developed in Germany in the first half of the 19th century.