半はん円えん

noun, noun which may take the genitive case particle 'no'

semicircle; half circle

Refers to a half-circle shape or a semicircular object. Commonly used in geometry, design, and everyday descriptions.

• 子こ供どもたちは半はん円えんになって座すわった。

  The children sat in a semicircle.

• この建たて物ものの窓まどは半はん円えんの形かたちをしている。

  The windows of this building are semicircular in shape.