brachytherapy
C2CEFR level
92/100Rarity: very rare
TechnicalRegister
Radiotherapy delivered by placing a radioactive source within or close to the tumour.
Prostate brachytherapy implants radioactive seeds directly into the gland, sparing surrounding tissue.
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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