saccade [
sæ'kɑ:d]
n. 急速勒马, 眼睛飞快扫视
saccade[ noun ]- a rapid, jerky movement of the eyes between positions of rest
<noun.act>
- an abrupt spasmodic movement
<noun.act>
Saccade \Sac*cade"\, n. [F.] (Man.)
A sudden, violent check of a horse by drawing or twitching
the reins on a sudden and with one pull.