sickness caused by irradiation with x-rays or other nuclear radiation as a result of therapeutic treatment, accidental exposure, or a nuclear bomb explosion and characterized by nausea, vomiting, headache, cramps, diarrhea, loss of hair and teeth, destruction of white blood cells, and prolonged hemorrhage.
British Dictionary definitions for radiation sickness
(pathol) illness caused by overexposure of the body or a part of the body to ionizing radiations from radioactive material or X-rays. It is characterized by vomiting, diarrhoea, and in severe cases by sterility and cancer
radiation sicknessn. Illness induced by ionizing radiation, ranging in severity from nausea, vomiting, headache, and diarrhea to loss of hair and teeth, reduction in red and white blood cell counts, extensive hemorrhaging, sterility, and death.