実じつ親おや

noun

biological parent

Refers to one's birth parent, as opposed to adoptive or foster parents. Often used in legal or formal contexts.

• 彼かれは実じつ親おやの顔かおを知しらない。

  He doesn't know the face of his biological parents.

• 養よう子し縁えん組ぐみでは、実じつ親おやの同どう意いが必ひつ要ような場ば合あいがある。

  In adoption, the consent of the biological parents may be required.