WordNet (r) 3.0 (2006):

radiation sickness
    n 1: 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; "he was suffering from radiation" [syn: radiation
         sickness, radiation syndrome, radiation]

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "radiation sickness":
   Minamata disease, altitude sickness, anoxemia, anoxia,
   anoxic anoxia, anthrax, black lung, caisson disease, chilblain,
   decompression sickness, frostbite, immersion foot, itai, jet lag,
   lead poisoning, mercury poisoning, motion sickness, pneumoconiosis,
   radionecrosis, red-out, sunstroke, the bends, trench foot