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radiant heat
radiant heating
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radiation biology
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radiation sickness
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radiation sickness

ra·di·a·tion sick·ness


noun 
Definition:
 
overexposure to radiation: a medical condition caused by overexposure to X-rays or to emissions from radioactive material. Symptoms include fatigue, headache, vomiting, diarrhea, loss of hair and teeth, and in severe cases, hemorrhaging and death.

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