n. [ Radio- + therapy. ] (Med.) Treatment of disease by means of x-rays or radioactivity. Radiotherapy of cancer is based on the fact that cancer cells are more sensitive to radiation than most other cells in the body. [ Webster 1913 Suppl. +PJC ]
[希沃特, Xī wò tè, ㄒㄧ ㄨㄛˋ ㄊㄜˋ]Sievert (Sv), unit of radiation damage used in radiotherapy; Rolf Maximilian Sievert (1896-1966), Swedish physicist[Add to Longdo]