TERATOGEN Scrabble 10 Words With Friends 12 Scrabble letter values: T1E1R1A1T1O1G2E1N1 = 10 Definition noun any agent that interferes with normal embryonic development: alcohol or thalidomide or X-rays or rubella are examples. See all 260 words you can make from TERATOGEN → 9-letter words Words starting with T Words ending with N ← Unscramble different letters