線せん積せき分ぶんMeaningsNoun1. line integral; path integral; contour integral; curve integralKanji used線line積pile up and accumulate分partComposed of線せんline; stripe; stria; line (e.g. telephone line); wire; ray (e.g. X-ray); beam; line (e.g. of a railroad); track; route; …Noun積せき分ぶんintegration; integralNoun