thoracentesis
C2CEFR level
95/100Rarity: very rare
TechnicalRegister
The insertion of a needle into the pleural space to aspirate fluid for diagnosis or relief.
Ultrasound-guided thoracentesis drained a litre of straw-coloured effusion.
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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