SIGMOIDAL Scrabble 13 Words With Friends 16 Scrabble letter values: S1I1G2M3O1I1D2A1L1 = 13 Definition adjective of or relating to the sigmoid flexure in the large intestine. — synonyms: sigmoid See all 258 words you can make from SIGMOIDAL → 9-letter words Words starting with S Words ending with L ← Unscramble different letters