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radiation Definition

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radiation
noun(ra-di-a-tion)
the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
Synonyms: radioactivity,
radiation
noun(ra-di-a-tion)
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,
Examples:
He was suffering from radiation.
radiation
noun(ra-di-a-tion)
(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
Synonyms: actinotherapy, irradiation, radiation therapy, radiotherapy,
radiation
noun(ra-di-a-tion)
a radial arrangement of nerve fibers connecting different parts of the brain
radiation
noun(ra-di-a-tion)
energy that is radiated or transmitted in the form of rays or waves or particles
radiation
noun(ra-di-a-tion)
the act of spreading outward from a central source
radiation
noun(ra-di-a-tion)
the spread of a group of organisms into new habitats

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