Inflammation of the epiglottis, the tissue flap that covers your airway when swallowing, which can be dangerous if severe.
From epiglottis + -itis (suffix meaning inflammation). Medical terminology following the standard Greek pattern for naming inflammatory conditions.
This is different from epiglottitis (which is more common in modern usage)—having both terms shows how medical language evolves as doctors pick shorter, cleaner names!
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