MICROSOME /ˈmaɪk.ɹə.səʊm/ Scrabble 15 Words With Friends 18 Scrabble letter values: M3I1C3R1O1S1O1M3E1 = 15 Definition noun a tiny granule in the cytoplasm that is where protein synthesis takes place under the direction of mRNA. See all 166 words you can make from MICROSOME → 9-letter words Words starting with M Words ending with E ← Unscramble different letters