Dictionary
sac•cade
Pronunciation: (sa-käd', su-), [key]—
n.
1. the act of checking a horse quickly with a single strong pull of the reins.
2. Ophthalm.the series of small, jerky movements of the eyes when changing focus from one point to another.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.