geochronology

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌdʒiːəʊkrəˈnɒlədʒɪ/US:USA pronunciation: respellingUSA pronunciation: respelling( jē′ō krə nol′ə jē)


WordReference Random House Unabridged Dictionary of American English © 2026
ge•o•chro•nol•o•gy  ( jē′ō krə nol′ə jē),USA pronunciation n. 
  1. Geologythe chronology of the earth, as based on both absolute and relative methods of age determination.
  • 1890–95; geo- + chronology
ge•o•chron•o•log•ic  ( jē′ō kron′l oj′ik),USA pronunciation ge′o•chron′o•log′i•cal, adj.  ge′o•chro•nol′o•gist, n. 

Collins Concise English Dictionary © HarperCollins Publishers::
geochronology / ˌdʒiːəʊkrəˈnɒlədʒɪ/
  1. the branch of geology concerned with ordering and dating of events in the earth's history, including the origin of the earth itself
geochronological / ˌdʒiːəʊˌkrɒnəˈlɒdʒɪkəl/, geochronologic / ˌdʒiːəʊˌkrɒnəˈlɒdʒɪk/
'geochronology' also found in these entries (note: many are not synonyms or translations):
law of superposition

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