07439883-n
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radiation
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the spread of a group of organisms into new habitats |
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13545184-n
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radiation, radioactivity
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the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay |
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01252918-n
(15)
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radiation
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the act of spreading outward from a central source |
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14308472-n
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radiation, radiation sickness, radiation syndrome
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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 |
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00705580-n
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radiotherapy, radiation therapy, radiation, actinotherapy, irradiation
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[in medicine] the treatment of disease (especially cancer) by exposure to a radioactive substance |
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11499284-n
(31)
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radiation
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energy that is radiated or transmitted in the form of rays or waves or particles |
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05503555-n
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radiation
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a radial arrangement of nerve fibers connecting different parts of the brain |
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