radiation
英音: [reidi'eiʃən] 美音: [reidi'eiʃən]名词
1.[U,C]辐射；放射线
2.不可数名词：辐射的热（或能量等）
3.不可数名词：（也作radiation therapy）放射疗法
英英释义
- syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours
- energy that is radiated or transmitted in the form of rays or waves or particles
- (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
- the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
- a radial arrangement of nerve fibers connecting different parts of the brain
- the spread of a group of organisms into new habitats
- the act of spreading outward from a central source
