/ Dictionary / Index R radiovision: Meaning and Definition of Find definitions for: ra•di•o•vi•sion Pronunciation: (rā'dē-ō-vizh"un), [key] — n. Now Rare. television. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. radio tube radio wave Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language