/ Dictionary / Index G geochronology: Meaning and Definition of Find definitions for: ge•o•chro•nol•o•gy Pronunciation: ( jē"ō-kru-nol'u-jē), [key] — n. the chronology of the earth, as based on both absolute and relative methods of age determination. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. geochemistry geochronometry Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language