垂直平分线 chuízhípíngfēnxiàn perpendicular bisector Origin Definitions Defs Strokes Stroke Words Sentences Sents 垂直 chuízhí adjectiveadverb perpendicular vertical; to be perpendicular, intersecting at a right angle平分线 平分線 píngfēnxiàn bisector line that divides a geometric figure into two equal parts