eustachitis

eu·sta·chi·tis

(yū'stā-kī'tis),
Inflammation of the mucous membrane of the eustachian tube.

eustachitis

(ū″stā-kī′tĭs)
Inflammation of the eustachian tube.

eustachitis

inflammation of the pharyngotympanic tube; not likely to be made as a clinical diagnosis in animals but is a common accompaniment of the more severe syndrome of otitis media.