A widely used moat with sides that slope like an earthen embankment. The name is derived from the moat having a bottom with a lateral section in the form of a triangular shaped mortar, yagen ς€, used for pulverizing medicine. Some moats kata yagenbori Πς€x (lopsided yagenbori), have a bottom section with the point of triangulation moved off center to increase the angle of the interior slope of the moat. |