凹おう状じょう

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

concave shape; concavity

Technical or descriptive term for a surface or form that curves inward. Often used in scientific, medical, or design contexts.

• このレンズは凹おう状じょうになっている。

  This lens has a concave shape.

• 地ち形けいが凹おう状じょうに窪くぼんでいる。

  The terrain is depressed in a concave shape.