耳咽管 [－－－]

Jyutping ji5 jin3 gun2
Pinyin ěr yān guǎn

Definitions (Wiktionary)
  1. noun
    Eustachian tube
    (syn.) 欧氏管, 耳瓮仔, 歐氏管, 咽鼓管, 耳甕仔