noun
a condition resulting from exposure to ionizing radiation, causing symptoms such as nausea, vomiting, and hair loss
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Radiation sickness is a serious medical condition caused by exposure to high levels of radiation.
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If you get radiation sickness, you'll feel really sick from being exposed to too much radiation.
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Dude, if you don't wear your protective gear, you're gonna end up with radiation sickness!
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The toxic relationship left her with emotional radiation sickness, draining her energy and happiness.