geo·​chro·​nol·​o·​gy | \ ˌjē-ō-krə-ˈnä-lə-jē How to pronounce geochronology (audio) \

Definition of geochronology

1 : the chronology of the past as indicated by geologic data
2 : the study of geochronology

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Other Words from geochronology

geochronological \ ˌjē-​ō-​ˌkrä-​nə-​ˈlä-​ji-​kəl How to pronounce geochronological (audio) , -​ˌkrō-​ \ or less commonly geochronologic \ ˌjē-​ō-​ˌkrä-​nə-​ˈlä-​jik How to pronounce geochronologic (audio) , -​ˌkrō-​ \ adjective
geochronologically \ ˌjē-​ō-​ˌkrä-​nə-​ˈlä-​ji-​k(ə-​)lē How to pronounce geochronologically (audio) , -​ˌkrō-​ \ adverb
geochronologist \ ˌjē-​ō-​krə-​ˈnä-​lə-​jist How to pronounce geochronologist (audio) \ noun

Examples of geochronology in a Sentence

Recent Examples on the Web

As a result of her work, the world would learn fundamental details of the behavior of atoms and how radioactivity could be used as a clock in studying the earth’s history, informing the modern practice of geochronology. New York Times, "Overlooked No More: Elizabeth Rona, Pioneering Scientist Amid Dangers of War," 28 Aug. 2019 The next generation of rovers are gonna half to brush up on their geochronology. Brian Romans, WIRED, "Inverted depositional features on Mars," 12 Apr. 2007

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'geochronology.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of geochronology

1893, in the meaning defined at sense 1

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Statistics for geochronology

Last Updated

6 Sep 2019

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Time Traveler for geochronology

The first known use of geochronology was in 1893

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More from Merriam-Webster on geochronology

Nglish: Translation of geochronology for Spanish Speakers Encyclopedia article about geochronology

Comments on geochronology

What made you want to look up geochronology? Please tell us where you read or heard it (including the quote, if possible).


to wander slowly or to speak indistinctly

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