首页英语词典radiationradiation英英释意

radiation

英 [reɪdɪ'eɪʃ(ə)n] 美[,redɪ'eʃən]
  • n. 辐射;发光;放射物

英英释意


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