防ぼう塁るい

noun

bulwark; earthwork; defensive fortification

Refers to a defensive structure, often an earthen rampart or wall, used in military contexts. The term is somewhat technical and may appear in historical or archaeological descriptions.

• 元げん寇こうの際さいに築きずかれた防ぼう塁るいが今いまも残のこっている。

  The bulwarks built during the Mongol invasions still remain today.

• 城しろの周しゅう囲いには土つちの防ぼう塁るいが巡めぐらされていた。

  Earthen bulwarks were constructed around the castle.