等边三角形 děngbiānsānjiǎoxíng equilateral triangle Origin Definitions Defs Strokes Stroke Words Sentences Sents 等 děng adjective equal (bound form) equal to; same as边 邊 biān noun side (geometry) side of a geometric shape; a line segment forming a polygon三角形 sānjiǎoxíng noun triangle three-sided shape in geometry; also describes things with a similar shape, such as a delta