CYCLOSERINE Scrabble 18 Words With Friends 21 Scrabble letter values: C3Y4C3L1O1S1E1R1I1N1E1 = 18 Definition noun an antibiotic that is especially active against the tubercle bacillus. See all 567 words you can make from CYCLOSERINE → 11-letter words Words starting with C Words ending with E ← Unscramble different letters