radiosurgery
noun [ U or C ] medical specialized uk/ˌreɪ.di.əʊˈsɜː.dʒər.i/ us/ˌreɪ.di.oʊˈsɝː.dʒər.i/
（用辐射摧毁生病的组织的治疗方法）放射外科
a treatment that uses radiation to destroy diseased tissue
Radiosurgery can be used to destroy brain tumours without cutting the skin. 放射外科可以用来摧毁肿瘤而不需要开刀。