A form of high-energy electromagnetic radiation emitted from the atomic nuclei of radioactive elements; also known as [[丙种射线|丙種射線|bing3 zhong3 she4 xian4]].

A medical device that uses gamma rays to perform surgery, allowing doctors to precisely destroy or remove tumors without damaging surrounding tissue; also called a [[γ刀|γ刀|ga1 ma3 dao1]] or [[光刀|光刀|guang1 dao1]].