eustachian tube | sense examples, Usage and Definition from wordnet dictionary online

Noun eustachian tube has 1 sense

Eustachian tube, auditory tube - either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum
--₁ is a kind of salpinx
--₁ is a part of middle ear, tympanic cavity, tympanum