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See more synonyms for geochronometry on Thesaurus.com
  1. the determination of the absolute age of earth materials, as by radiometric dating.
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Origin of geochronometry

First recorded in 1920–25; geo- + chronometry
Related formsge·o·chron·o·met·ric [jee-oh-kron-uh-me-trik] /ˌdʒi oʊˌkrɒn əˈmɛ trɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

geochronometry in Science


  1. The measurement of geologic time using absolute measures, such as radiometric dating, or relative measures, such as determining the sequence of deposition of rock strata.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.