重じゅう積せき分ぶんMeaningsNoun1. multiple integralKanji used重heavy積pile up and accumulate分partPitch accentじゅうせきぶんComposed of重じゅうjūbako; multi-tiered food box; heavy; serious; extreme; -fold; -plyNoun積せき分ぶんintegration; integralNoun