三さんの丸まる

noun

outermost bailey; third bailey

In Japanese castle architecture, the outermost defensive enclosure, outside the 二の丸 (second bailey) and 本丸 (inner bailey). A historical term; modern usage is mainly in historical descriptions or place names.

See also: 本丸 · 二の丸

• 江え戸ど城じょうの三さんの丸まるに