radiation (n.)energy that is radiated or transmitted in the form of rays or waves or particles;
radiation (n.)the act of spreading outward from a central source;
radiation (n.)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;
he was suffering from radiation
Synonyms: radiation sickness / radiation syndrome
radiation (n.)the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay;
radiation (n.)the spread of a group of organisms into new habitats;
radiation (n.)a radial arrangement of nerve fibers connecting different parts of the brain;
radiation (n.)(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance;