Meaning of angle of lag

an'gle of lag'

Pronunciation: [key]
— Physics, Elect. Physics,Elect.
  1. the phase difference, expressed in degrees, by which one sinusoidal function moves behind a second having the same period, as alternating current moving behind the alternating voltage.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.