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

词形变化

形容词radiant

动词radiate

英语解释

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