Crossword clue: (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance

The most common answer is irradiation (11 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

irradiation 11 letters wn-def

(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance

radiotherapy 12 letters wn-def

(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance