polygon Meaning, Definition & Usage

  1. noun a closed plane figure bounded by straight sides
    polygonal shape.

WordNet

Pol"y*gon noun
Etymology
Gr. polygonal; many + angle: cf. F. polygone.
Definitions
  1. (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.

Webster 1913