ulceration
B2CEFR level
45/100Rarity: uncommon
TechnicalRegister
The formation of an open sore where skin or tissue has broken down.
Repeated pressure over the deformed joint eventually led to ulceration of the overlying skin.
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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