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Eustachian tube

Pronunciation: /juːˈsteɪʃ(ə)n/

Definition of Eustachian tube

noun

Anatomy
  • a narrow passage leading from the pharynx to the cavity of the middle ear, permitting the equalization of pressure on each side of the eardrum.

Origin:

mid 18th century: named after Bartolomeo Eustachio (died 1574), the Italian anatomist who identified and described it

Eustachian tube in other Oxford dictionaries

Definition of Eustachian tube in the US English dictionary

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