polygon
poly.gon \'pa:l-i-.ga:n\ \p*-'lig-*n-*l\ \-*l-e-\ n [LL polygonum, fr. Gk polygo-non, fr. neut. of polygo-nos)X polygonal, fr. poly- + go-nia angle - more at -GON 1: a closed plane figure bounded by straight lines 2: a closed figure on a sphere bounded by arcs of great circles - po.lyg.o.nal aj