断裂だんれつ Noun Irregular Transitive Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb intransitive verb snapping apart ひどくなると、亀裂が生じたり、断裂することもあります。 In severe cases, cracks can form or it can snap apart.