- 等分线 děngfēnxiàn bisectora line that divides something into equal parts; specifically a bisectrix in geometry
- 三等分 sānděngfēn to trisectto divide something into three equal parts
- 三等分角 sānděngfēnjiǎo to trisect an angle(math.) to divide an angle into three equal parts
- 二等分 èrděngfēn to bisect; bisectionto divide, or the act of dividing, something into two equal parts (as a line, surface, or solid)
- 二等分线 èrděngfēnxiàn bisectora straight line that divides a geometric figure, such as an angle or a line segment, into two equal parts
