pol·y·gon
noun/ˈpɒlɪɡən/
/ˈpɑːliɡɑːn/
(geometry)- a flat shape with at least three straight sides and angles, and usually five or more
enlarge image多边形；多角形 Word Originlate 16th cent.: via late Latin from Greek polugōnon, neuter (used as a noun) of polugōnos ‘many-angled’.