cinclisis

cin·cli·sis

(sing'kli-sis),
Rapid repetition of a movement, for example, rapidly repeated winking.
[G. kingklizō, to wag the tail, change constantly]

cinclisis

(sĭn′klĭ-sĭs) [Gr. kinklisis, a wagging]
Swift spasmodic movement of any part of the body.