EXOTOXIN Scrabble 22 Words With Friends 23 Scrabble letter values: E1X8O1T1O1X8I1N1 = 22 Definition noun a toxin that is secreted by microorganisms into the surrounding medium. See all 44 words you can make from EXOTOXIN → 8-letter words Words starting with E Words ending with N ← Unscramble different letters