noun
either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum
• Syn: ↑Eustachian tube
• Hypernyms: ↑salpinx
• Part Holonyms: ↑middle ear, ↑tympanic cavity, ↑tympanum
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nounUseful english dictionary. 2012.