eustachian tube

noun, often capitalized E

eu·sta·chian tube | \ yü-ˈstā-sh(ē-)ən- also -ˈstā-kē-ən-

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 illustration

Keep scrolling for more

More Definitions for eustachian tube

eustachian tube

noun, often capitalized E

: 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