六角形,六邊形
Hexagon \Hex"a*gon\, n. [L. hexagonum, Gr. ? six-cornered; "e`x six (akin to E. six) + ? angle.] (Geom.) A plane figure of six angles. {Regular hexagon}, a hexagon in which the angles are all equal, and the sides are also all equal.
hexagon n : a six-sided polygon