/ Dictionary / Index R radiostrontium: Meaning and Definition of Find definitions for: ra•di•o•stron•ti•um Pronunciation: (rā"dē-ō-stron'shē-um, -shum, -tē-um), [key] — n. Chem. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. radio station radiosymmetrical Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language