HISTIDINE Scrabble 13 Words With Friends 13 Scrabble letter values: H4I1S1T1I1D2I1N1E1 = 13 Definition noun an essential amino acid found in proteins that is important for the growth and repair of tissue. See all 165 words you can make from HISTIDINE → 9-letter words Words starting with H Words ending with E ← Unscramble different letters