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geochronology

The English word “geochronology” has 3 meanings listed here.

noun

  1. The science of dating samples of rock or sediment.
  2. Any one of the methods by which the age of different samples of rock can be determined.
  3. The division of ancient time into named subdivisions / periods

Etymology

From geo- + chronology.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.