歐氏管 [欧－－]

Jyutping au1 si6 gun2
Pinyin ōu shì guǎn

Definitions (Wiktionary)
  1. noun
    Eustachian tube
    (syn.) 耳咽管, 耳甕仔, 咽鼓管, 耳瓮仔
Examples (Wiktionary)
  1. Mandarin
    欧氏管
    歐氏管
    ōu shì guǎn
    • Eustachian tube