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geochronology

American  
[jee-oh-kruh-nol-uh-jee] / ˌdʒi oʊ krəˈnɒl ə dʒi /

noun

  1. the chronology of the earth, as based on both absolute and relative methods of age determination.

geochronology British  
/ ˌdʒiːəʊkrəˈnɒlədʒɪ, ˌdʒiːəʊˌkrɒnəˈlɒdʒɪkəl /

noun

  1. the branch of geology concerned with ordering and dating of events in the earth's history, including the origin of the earth itself

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • geochronologic adjective
  • geochronological adjective
  • geochronologist noun

Etymology

Origin of geochronology

First recorded in 1890–95; geo- + chronology

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"It is the first geochronology study to come from the Chang’e-6 samples, and will be of immense importance to the lunar and planetary science community."

From BBC

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.