前ぜん庭てい窓そう

noun

oval window; fenestra ovalis; fenestra vestibuli

Anatomical term for the membrane-covered opening between the middle ear and the vestibule of the inner ear.

• 前ぜん庭てい窓そうは中ちゅう耳じと内ない耳じの間あいだにある小ちいさな開かい口こう部ぶです。

  The oval window is a small opening between the middle ear and the inner ear.