MYOCLONUS /maɪˈɒklənəs/ Scrabble 16 Words With Friends 20 Scrabble letter values: M3Y4O1C3L1O1N1U1S1 = 16 Definition noun a clonic spasm of a muscle or muscle group. See all 140 words you can make from MYOCLONUS → 9-letter words Words starting with M Words ending with S ← Unscramble different letters