MESODERM Scrabble 13 Words With Friends 15 Scrabble letter values: M3E1S1O1D2E1R1M3 = 13 Definition noun the middle germ layer that develops into muscle and bone and cartilage and blood and connective tissue. — synonyms: mesoblast See all 137 words you can make from MESODERM → 8-letter words Words starting with M Words ending with M ← Unscramble different letters