equation movement: Meaning and Definition of

equa'tion move"ment

Pronunciation: [key]
— Horol. Horol.
  1. a movement in certain clocks for driving a hand that shows the relation of the mean day of 24 hours to the length of the current solar day.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.