控ひかえ壁かべ

noun

buttress

Architectural term for a projecting support built against a wall to strengthen it.

• ゴシック建けん築ちくでは、高たかい壁かべを支ささえるために控ひかえ壁かべがよく使つかわれる。

  In Gothic architecture, buttresses are often used to support tall walls.