Meaning of broken line

bro'ken line'

Pronunciation: [key]
  1. a discontinuous line or series of line segments, as a series of dashes, or a figure made up of line segments meeting at oblique angles.
  2. a highway marking consisting of a series of disconnected line segments painted between lanes of a roadway, indicating that crossing from one to the other is permissible.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.