synovitis
C2CEFR level
85/100Rarity: very rare
TechnicalRegister
Inflammation of the synovial membrane lining a joint, typically producing swelling, warmth and effusion.
Ultrasound confirmed active synovitis with hypervascularity on power Doppler in the affected wrist.
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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