凸とつ状じょう

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

convex shape; protrusion

Describes something that bulges outward or has a raised surface. Often used in technical or descriptive contexts.

• このレンズは凸とつ状じょうになっている。

  This lens has a convex shape.

• 壁かべに凸とつ状じょうの装そう飾しょくが施ほどこされている。

  The wall is decorated with protruding ornaments.