otitis media with effusion
C2CEFR level
85/100Rarity: very rare
TechnicalRegister
The presence of fluid behind an intact eardrum without the signs of acute infection.
Otitis media with effusion is the commonest cause of acquired conductive hearing loss in children.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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