Crossword clues for the word: RADIATION The word RADIATION has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for RADIATION Showing 1 to 7 of 7 results Clue(s) Kryptonite emanation Nuclear dispersal Outspreading energy Thing counted by Geiger Waves off? What a Geiger counter measures What roentgens measure