半はん円えんアーチ

noun

semicircular arch; Roman arch; round arch

Architectural term for an arch whose intrados forms a perfect semicircle. Common in Roman and Romanesque architecture.

• ロマネスク建けん築ちくでは半はん円えんアーチがよく使つかわれた。

  Semicircular arches were often used in Romanesque architecture.

• この教きょう会かいの入いり口ぐちには美うつくしい半はん円えんアーチがある。

  There is a beautiful semicircular arch at the entrance of this church.