/ Dictionary / Index R radio range beacon: Meaning and Definition of Find definitions for: ra'dio range' bea"con Pronunciation: [key] a radio transmitter that utilizes two or more directional antennas and transmits signals differing with direction, permitting a flier receiving a signal to determine his or her approximate bearing from the transmitter without a radio compass. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. radiophotograph radioscopy Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language