卵らん円えん窓そうらんえんそうじ字FuriganaMeanings1nounoval window; fenestra ovalisanatomy›Anatomical term for the membrane-covered opening between the middle ear and the inner ear. Related to 前庭窓 (vestibular window).See also: 前庭窓卵らん円えん窓そうは中ちゅう耳じと
