rolled longitudinally upon itself; "a convolute petal"それ自体の上を縦方向に転がされる回旋状
highly complex or intricate and occasionally devious; "the Byzantine tax structure"; "Byzantine methods for holding on to his chairmanship"; "convoluted legal language"; "convoluted reasoning"; "the plot was too involved"; "a knotty problem"; "got his way by labyrinthine maneuvering"; "Oh, what a tangled web we weave"- Sir Walter Scott; "tortuous legal procedures"; "tortuous negotiations lasting for months"非常に複雑な、または入り組んで、そして、時折率直でない難解