radiation
英 [re?d?'e??(?)n]
美[,red?'e??n]
英英釋意
- 1. energy that is radiated or transmitted in the form of rays or waves or particles
- 2. the act of spreading outward from a central source
- 3. 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 an
- "he was suffering from radiation"
- 4. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
- 5. the spread of a group of organisms into new habitats
- 6. a radial arrangement of nerve fibers connecting different parts of the brain
- 7. (medicine) the treatment of disease (especially cancer) by exposure to radiation from a radioactive substance