MESOTHELIUM Scrabble 18 Words With Friends 21 Scrabble letter values: M3E1S1O1T1H4E1L1I1U1M3 = 18 Definition noun epithelium originating in the embryonic mesoderm. Examples “lines the primordial body cavity” See all 487 words you can make from MESOTHELIUM → 11-letter words Words starting with M Words ending with M ← Unscramble different letters