PYROLYSIS /paɪˈɹɒlɪsɪs/ ► audio Scrabble 17 Words With Friends 17 Scrabble letter values: P3Y4R1O1L1Y4S1I1S1 = 17 Definition noun transformation of a substance produced by the action of heat. See all 103 words you can make from PYROLYSIS → 9-letter words Words starting with P Words ending with S ← Unscramble different letters