Eustachian tube

[ yoo-stey-shuhn, -stey-kee-uhn ]

/ yuˈsteɪ ʃən, -ˈsteɪ ki ən /

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noun Anatomy.

a canal extending from the middle ear to the pharynx; auditory canal.

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Origin of Eustachian tube

1735–45; named after Eustachio; see -an

Words nearby Eustachian tube

Euskera, eusocial, eusol, eusporangiate, Eustace, Eustachian tube, Eustachio, Eustacia, eustasy, eustatic, eustele

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Eustachian tube in a sentence

Eustachian Tube—A tube leading from the side of the throat to the internal ear.
Searchlights on Health: Light on Dark Corners|B.G. Jefferis
Amongst his discoveries were the eustachian tube and the eustachian valve of the heart.
The New Gresham Encyclopedia|Various
The middle ear is connected with the throat by the Eustachian Tube.
The Home Medical Library, Volume II (of VI)|Various

British Dictionary definitions for Eustachian tube

Eustachian tube

/ (juːˈsteɪʃən) /

noun

a tube that connects the middle ear with the nasopharynx and equalizes the pressure between the two sides of the eardrum

Word Origin for Eustachian tube

C18: named after Bartolomeo Eustachio, 16th-century Italian anatomist

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for Eustachian tube

eustachian tube

[ yōō-stā′shən ]

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.

Cultural definitions for Eustachian tube

Eustachian tube

[ (yooh-stay-shuhn, yooh-stay-kee-uhn) ]

A tube made up of bone and cartilage that connects the middle ear to the back of the mouth.

notes for Eustachian tube

Swallowing during airplane takeoffs and landings allows air to move through the Eustachian tube to equalize pressure across the eardrum, causing the ears to “pop.”