neoplasm
C1CEFR level
72/100Rarity: rare
TechnicalRegister
An abnormal mass of tissue arising from uncontrolled cellular proliferation, which may be benign or malignant.
Imaging revealed a well-circumscribed neoplasm in the left lobe that the pathologist later classified as benign.
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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