柯林斯詞典radiology /?re?d???l?d??/ 1. N-UNCOUNT Radiology is the branch of medical science that uses X-rays and radioactive substances to treat diseases. 放射醫(yī)學(xué) 返回 radiology劍橋詞典the scientific study of the medical use of radiation , especially X-rays （尤指研究X射線輻射的）放射學(xué)；放射醫(yī)學(xué) 返回 radiology