凸多面体 tūduōmiàntǐ convex polyhedron Origin Definitions Defs 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.多面体 多面體 duōmiàntǐ polyhedron a solid figure with many flat faces