auditory tube

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Noun1.auditory tube - either of the paired tubes connecting the middle ears to the nasopharynxauditory tube - either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum
salpinx - a tube in the uterus or the ear
middle ear, tympanic cavity, tympanum - the main cavity of the ear; between the eardrum and the inner ear