三棱锥 sānléngzhuī triangular pyramid Origin Definitions Defs Strokes Stroke Words Sentences Sents 三 sān numeral three the number three; 3棱锥 稜錐 léngzhuī pyramid A polyhedron with a polygonal base and triangular sides that meet at a single point; also known as 角锥 jiǎozhuī in Taiwan.