/ Dictionary / Index R retroreflective: Meaning and Definition of Find definitions for: ret•ro•re•flec•tive Pronunciation: (re"trō-ri-flek'tiv), [key] — adj. of or pertaining to a surface, material, or devicethat reflects light or other radiation back to its source; reflective. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. retromingent retroreflector Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language