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eustachian tube

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noun, often capitalized E eu·sta·chian tube \yü-ˈstā-sh(ē-)ən- also -ˈstā-kē-ən-\

Definition of eustachian tube

  1. :  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 illustration

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Origin and Etymology of eustachian tube

Bartolommeo Eustachio

Medical Dictionary

eustachian tube

noun , often capitalized E eu·sta·chian tube

Medical Definition of eustachian tube

  1. :  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, pharyngotympanic tube

Illustration of eustachian tube

Learn More about eustachian tube

  1. Britannica.com: Encyclopedia article about eustachian tube

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