barotitis media

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an inflammatory condition of the ear due to exposure to differing atmospheric pressures, such as those experienced when in an airplane.
barotitis me´dia a symptom complex consisting of ear pain, dizziness, and muffled hearing, caused by difference between the atmospheric pressure of the environment and air pressure in the middle ear.

bar·o·ti·tis me·di·a

(bar'ō-tī'tis mē'dē-ă),
Inflammation of the mucous membrane of the middle ear caused by pressure difference within the middle ear relative to ambient pressure, secondary to obstruction of the auditory tube or its failure to open; often occurs on descent in altitude.
Synonym(s): aerotitis media

aer·o·ti·tis me·di·a

(ār'ō-tī'tis mē'dē-ă)
An acute or chronic inflammation of the middle ear caused by a reduction in pressure in the tympanic cavity relative to ambient pressure, due to auditory tube obstruction; often occurs on descent from high altitude.
Synonym(s): barotitis media.
[aero- + G. ous, ear, + -itis, inflammation]