REFRACTIVITY Scrabble 23 Words With Friends 24 Scrabble letter values: R1E1F4R1A1C3T1I1V4I1T1Y4 = 23 Definition noun the physical property of a medium as determined by its index of refraction. — synonyms: refractiveness See all 359 words you can make from REFRACTIVITY → 12-letter words Words starting with R Words ending with Y ← Unscramble different letters