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Radiation   /rˌeɪdiˈeɪʃən/   Listen
Radiation

noun
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 and some forms of cancer and other diseases; severe exposure can cause death within hours.  Synonyms: radiation sickness, radiation syndrome.
4.
The spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.  Synonym: radioactivity.
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 a radioactive substance.  Synonyms: actinotherapy, irradiation, radiation therapy, radiotherapy.



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"Radiation" Quotes from Famous Books



... flying fragments then they were spent and over. But Carolinum, which belonged to the beta group of Hyslop's so-called 'suspended degenerator' elements, once its degenerative process had been induced, continued a furious radiation of energy and nothing could arrest it. Of all Hyslop's artificial elements, Carolinum was the most heavily stored with energy and the most dangerous to make and handle. To this day it remains the most potent degenerator known. What the earlier twentieth-century ...
— The World Set Free • Herbert George Wells

... pictures. Owen praised the architecture. It was, he said, the most perfectly-constructed little gallery he had ever seen, and he ought to know, for he had seen every gallery in Europe. But he had not been here for many years and had quite forgotten it. "A veritable radiation of masterpieces," he said, stepping aside to see one. But the girl was the greater attraction, and only half satisfied he returned to her, and when the attraction of the pictures grew irresistible he tried to engage her ...
— Evelyn Innes • George Moore

... force of him, radiated like a tower code-beam. No one could be in his presence an instant without feeling it. A power that enwrapped you; made you feel like a child. Helpless. Anxious to placate a possible wrath that would be devastating; anxious—absurdly—for a smile. It was a radiation of genius, humbling ...
— Tarrano the Conqueror • Raymond King Cummings

... rose-colored silk. I borrowed this idea from a fascinating cabinet in an old French palace, and the result is worth the deception. The cabinets are nice in themselves, and they do not interfere with the radiation of ...
— The House in Good Taste • Elsie de Wolfe

... while ago, was now familiar, but to much I was still a stranger, and presently I was wondering concerning the occupants of the houses I was passing. The shabby gentility and dull respectability of the latter was depressing, and to escape the radiation of their dreariness I turned into first one street and then another, and as I walked the girl with the boyish face walked with me, the face with its hunted fear. She had held the baby as if frightened, and when she turned the corner ...
— People Like That • Kate Langley Bosher


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