/ Dictionary / Index R refractor: Meaning and Definition of Find definitions for: re•frac•tor Pronunciation: (ri-frak'tur), [key] — n. a person or thing that refracts. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. refractometer refractory Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language