/ Dictionary / Index R radiocarbon dating: Meaning and Definition of Find definitions for: radiocar'bon dat"ing Pronunciation: [key] the determination of the age of objects of organic origin by measurement of the radioactivity of their carbon content. Also calledCf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. radiocarbon radiocast Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language