折線 [－线]

Jyutping zit3 sin3
Pinyin zhé xiàn

Definitions (CC-CEDICT)
  1. broken line (continuous figure made up of straight line segments)
  2. polygonal line
  3. dog leg
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. noun
    polygonal chain; broken lines