Crossword clues for the word: GONEFISSION The word GONEFISSION has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for GONEFISSION Showing 1 to 5 of 5 results Clue(s) Nuclear physicist's sign-off? Nuclear-plant sign? Sign at a nuclear reactor? Sign on a nuclear physicist's door? Sign outside a nuclear power plant?