Eustachian tube(redirected from Eustacian)
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Related to Eustacian: Eustachian valve, eustachian salpingitis
eu·sta·chian tubeor Eu·sta·chian tube (yo͞o-stā′shən, -shē-ən, -kē-ən)
A slender tube that connects the tympanic cavity with the nasal part of the pharynx and serves to equalize air pressure on either side of the eardrum.
[After Bartolomeo Eustachio.]
(Anatomy) a tube that connects the middle ear with the nasopharynx and equalizes the pressure between the two sides of the eardrum
[C18: named after Bartolomeo Eustachio, 16th-century Italian anatomist]
Eu•sta′chian tube`(yuˈsteɪ ʃən, -ˈsteɪ ki ən)
(often l.c.) a canal extending from the middle ear to the pharynx.
A slender tube that connects the middle ear with the upper part of the pharynx, serving to equalize air pressure on either side of the eardrum.
(or auditory tube) A tube between the middle ear and the throat. It helps to equalize air pressure.
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|Noun||1.||Eustachian 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