凸多胞形 tūduōbāoxíng convex polytope 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.多胞形 duōbāoxíng polytope polytope; a geometric object with flat sides that exists in any number of dimensions