\Pol"y*gon\, n. [Gr. poly`gwnos polygonal; poly`s many +
gwni`a angle: cf. F. polygone.] (Geom.)
A plane figure having many angles, and consequently many
sides; esp., one whose perimeter consists of more than four
sides; any figure having many angles.
{Polygon of forces} (Mech.), a polygonal figure, the sides of
   which, taken successively, represent, in length and
   direction, several forces acting simultaneously upon one
   point, so that the side necessary to complete the figure
   represents the resultant of those forces. Cf.
   {Parallelogram of forces}, under {Parallelogram}.