凸多边形 tūduōbiānxíng convex polygon Definitions Defs Origin Strokes Stroke Words Sentences Sents 凸 tū verb protruding to stick out or protrude; convex; describes a male connector. This is the opposite of 凹 āo.多边形 多邊形 duōbiānxíng polygon A closed plane figure with three or more sides, such as a triangle or a square
