- 垂直线 chuízhíxiàn vertical linea line that is perpendicular to another line or plane; also called [[垂线|垂線|chui2 xian4]]
- 垂直面 chuízhímiàn vertical planea plane that is at a right angle to a given line or another plane
- 垂直轴 chuízhízhóu vertical axisvertical shaft or a vertical axis in mathematics
- 垂直平分线 chuízhípíngfēnxiàn perpendicular bisectorA line that is perpendicular to a line segment and passes through its midpoint; midnormal
- 母子垂直感染 mǔzǐchuízhígǎnrǎn mother-to-infant transmissiontransmission of a disease or infection from a mother to her baby during pregnancy, childbirth, or breastfeeding
- 垂直和短距起落飞机 chuízhíhéduǎnjùqǐluòfēijī V/STOL aircraftVertical or short takeoff and landing aircraft
- 垂直尾翼 chuízhíwěiyì tailfin(aviation) tailfin; vertical stabilizer
- 垂直起落飞机 chuízhíqǐluòfēijī VTOL aircraftvertical takeoff and landing aircraft
- 垂直起降飞机 chuízhíqǐjiàngfēijī VTOL aircraftVertical Take-Off and Landing aircraft; a type of plane with fixed wings that can take off, hover, and land vertically while also being capable of horizontal flight
