harmonic motion

English Thesaurus

1. a periodic motion in which the displacement is either symmetrical about a point or is the sum of such motions (noun.event)

hypernym	:	periodic motion, periodic movement,
definition	:	motion that recurs over and over and the period of time required for each recurrence remains the same (noun.event)

hyponym	:	simple harmonic motion,
definition	:	periodic motion in which the restoring force is proportional to the displacement (noun.event)