mucositis
C2CEFR level
90/100Rarity: very rare
TechnicalRegister
Painful inflammation and ulceration of the mucous membranes, a common toxicity of cancer treatment.
Oral mucositis made swallowing so painful that the patient required parenteral nutrition.
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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