Crossword clues for the word: BETARAY The word BETARAY has appeared as an answer to at least 12 crossword clues on different crossword puzzles. Crossword clues for BETARAY Showing 1 to 12 of 12 results Clue(s) Atomic discharge Electron particle emission Electron stream Emission from radioactive decay Geiger counter detection Product of a radioactive substance. Product of some decay Radioactive decay stream Radioactive emission Stream of atomic particles Stream of electrons Tritium output