回帰かいき Common Noun Irregular Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verb return (to);revolution;recurrence 2 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verb mathematics regression
永劫回帰えいごうかいき Noun English jmdict 1 noun (common) (futsuumeishi) yojijukugo eternal recurrence;eternal return in Nietzsche's philosophy 'ewige Wiederkunft'