緩かん和わ振しん動どうMeaningsNoun1. relaxation oscillationKanji used緩become loose和harmony振to wave動moveComposed of緩かん和わrelief; mitigation; alleviation; relaxation (of restrictions, tensions, etc.); easing; softeningNoun振しん動どうoscillation; vibration; swing (e.g. of a pendulum)Noun