/ Dictionary / Index R Radin: Meaning and Definition of Find definitions for: Ra•din Pronunciation: (rād'n), [key] 1883–1959, U.S. anthropologist, born in Poland. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. radii radio Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language