鼓室 [ㄍㄨˇ ㄕˋ; gu3 shi4] tympanic cavity (of the middle ear) ◄ ►
鼓室 こしつ noun (common) (futsuumeishi) nouns which may take the genitive case particle `no' see: 鼓膜 tympanic cavity ◄ ►