Crossword clues for the word: MUONS The word MUONS has appeared as an answer to at least 10 crossword clues on different crossword puzzles. Crossword clues for MUONS Showing 1 to 10 of 10 results Clue(s) Catalyzing subatomic particles Charge leptons Electrons' heavier cousins Elementary lepton particles Forms of leptons Negative charged particles Particles with mass about 200 times that of electrons They're 209 times more massive than electrons Unstable electrons Unstable particles