SINCE 1828
eu·sta·chian tube
| \ yü-ˈstā-sh(ē-)ən- also -ˈstā-kē-ən-
\
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Definition of eustachian tube
: a bony and cartilaginous tube connecting the middle ear with the nasopharynx and equalizing air pressure on both sides of the tympanic membrane
— called also auditory tube
— see ear illustrationKeep scrolling for more
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