垂线

垂線
chuíxiàn
  1. (math.) perpendicular line
  2. vertical line

CEDICT

math

Entry Composition

1 垂 chuí
  1. to hang (down)
  2. droop
  3. dangle
  4. bend down
  5. hand down
  6. bequeath
  7. nearly
  8. almost
  9. to approach
=2 线 xiàn variant of 线 xiàn
=2 线 xiàn
  1. thread
  2. string
  3. wire
  4. line
  5. (after a number) tier (unofficial ranking of a Chinese city)

classifiers: 條, 股, 根