erysipelas
C2CEFR level
96/100Rarity: very rare
TechnicalRegister
A superficial streptococcal skin infection producing a sharply demarcated, raised, red plaque.
The well-defined, indurated border of the facial rash was characteristic of erysipelas.
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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