radiometric

🇺🇸 /ˌreɪdiəʊˈmetrɪk/ 🇬🇧 /ˌreɪdiəʊˈmetrɪk/
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adjective
R

involving the measurement of radiation, such as radioactivity, to determine the age of materials or the properties of objects

The geologist used radiometric dating to determine the age of the ancient rock layers.

translation

adj. involving the measurement of radiation, such as radioactivity, to determine the age of materials or the properties of objects