[sac.cade] n [F, twitch, jerk, fr. MF, fr. saquer to pull, draw] (1938): a small rapid jerky movement of the eye esp. as it jumps from fixation on one point to another (as in reading) -- sac.cad.ic adj
SACCADE
Meaning of SACCADE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012