Eustachian tube

Từ điển WordNet v3.1 - WordNet Dictionary

noun

either of the paired tubes connecting the middle ears to the nasopharynx;
equalizes air pressure on the two sides of the eardrum
• Syn:
auditory tube
• Hypernyms:
salpinx
• Part Holonyms:
middle ear, tympanic cavity, tympanum

• Từ đồng nghĩa / Synonyms:
  Eustachian tube, auditory tube