角锥 jiǎozhuī pyramid Origin Definitions Defs Strokes Stroke Words Sentences Sents 三角锥 sānjiǎozhuī triangular pyramid a three-dimensional shape with four triangular faces, any of which can serve as the base; also called a tetrahedron角锥体 jiǎozhuītǐ pyramid A solid shape with a polygon for a base and triangular sides that meet at a single point.