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Definition of Geochronometer
1. Noun. (geology) Any device used to measure geologic time, especially by measuring radioactive decay, or the relative abundance of isotopes ¹
¹ Source: wiktionary.com
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1. Noun. (geology) Any device used to measure geologic time, especially by measuring radioactive decay, or the relative abundance of isotopes ¹
¹ Source: wiktionary.com