Definition
A painful inflammation of the middle ear caused by a pressure difference between the air trapped inside the middle ear and the air outside the eardrum. It commonly occurs during aircraft descent when outside pressure rises faster than the middle ear can equalize through the Eustachian tube, especially if the tube is partially blocked by a cold, allergy, or sinus congestion.
Plain English
Ear pain and inflammation caused when the pressure inside your ear can't keep up with the pressure changes of flight, usually on the way down.
Context Anchor
Seen in aeromedical discussions of flying with a cold, allergies, sinus congestion, or ear blockage, especially during climbs and descents.
Derivation
From 'baro-' (Greek baros, meaning pressure or weight), 'otitis' (Greek ous/otos, ear, plus '-itis,' inflammation), and 'media' (Latin for middle). Literally 'pressure-caused inflammation of the middle ear,' which is exactly what it describes.
Why Pilots Care
Unresolved pressure differences can cause sharp pain, temporary hearing loss, or dizziness that interferes with safe aircraft control.
Grounding Statement
During descent, outside air pressure increases; if the middle ear cannot equalize, the eardrum can be pulled inward and become painful.
Intuition Check
Do not assume this means a normal ear infection. In this term, the key problem is pressure change, not germs.
Example Sentence 1
The pilot canceled the flight because his head cold made him a likely candidate for barotitis media on descent.
Example Sentence 2
The instructor advised swallowing frequently to prevent barotitis media on the next flight.