radiation

noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about radiation at Wordnik → Where our words come from →

1. Energy that is radiated or transmitted in the form of rays or waves or particles.
2. The act of spreading outward from a central source.
3. 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