放射線療法
Radiotherapy \Ra`di*o*ther"a*py\, n. [Radio- + therapy.] (Med.) Treatment of disease by means of R["o]ntgen rays or other forms of radioactivity.
radiotherapy n : (medicine) the treatment of disease (especially cancer) by exposure to radiation from a radioactive substance [syn: {radiation therapy}, {radiation}, {actinotherapy}, {irradiation}]