INTERFEROMETER Scrabble 19 Words With Friends 21 Scrabble letter values: I1N1T1E1R1F4E1R1O1M3E1T1E1R1 = 19 Definition noun any measuring instrument that uses interference patterns to make accurate measurements of waves. See all 409 words you can make from INTERFEROMETER → 14-letter words Words starting with I Words ending with R ← Unscramble different letters