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A rapid intermittent eye movement, as that which occurs when the eyes fix on one point after another in the visual field.
[French, jerk, jolt, from Middle French, from Old French dialectal saquer, to jerk, pull, variant of Old French sachier, to pull forcefully, turn over, shake up, from sac, sack (perhaps in reference to the shaking of bags of wheat to settle their contents); see sac1.]
1. (Physiology) the movement of the eye when it makes a sudden change of fixation, as in reading
2. (Horse Training, Riding & Manège) a sudden check given to a horse
[C18: from French: a jerk on the reins of a horse]
a rapid, irregular eye movement that occurs when changing focus from one point to another, as while reading or looking out from a moving train.
[1950–55; < French saccade jerk, jolt < Middle French saqu(er) to pull violently]
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|Noun||1.||saccade - a rapid, jerky movement of the eyes between positions of rest|
eye movement - the movement of the eyes
|2.||saccade - an abrupt spasmodic movement|