noun, noun or participle which takes 'suru', intransitive verb
rhythm; rhythmic movement
Often used in technical, musical, or poetic contexts to describe a regular, patterned motion or flow. Can also be used as a suru-verb to mean 'to move rhythmically'.
心臓の律動が規則的だ。
The rhythm of the heartbeat is regular.
波が岸辺で律動して
The waves are moving rhythmically on the shore.