Synonyms: jerk, jerking, jolt, saccade
Definition: an abrupt spasmodic movement
Similar words: motility, motion, move, movement
Definition: a change of position that does not entail a change of location
Usage: the reflex motion of his eyebrows revealed his surprise; movement is a sign of life; an impatient move of his hand; gastrointestinal motility
Synonyms: saccade
Definition: a rapid, jerky movement of the eyes between positions of rest
Similar words: eye movement
Definition: the movement of the eyes