SPALLATION /spəˈleɪʃ(ə)n/ ► audio Scrabble 12 Words With Friends 16 Definition noun (physics) a nuclear reaction in which a bombarded nucleus breaks up into many particles. Anagrams of SPALLATION altiplanos See all 452 words you can make from SPALLATION → 10-letter words Words starting with S Words ending with N ← Unscramble different letters