Isochron

Acceptable For Game Play - US & UK word lists

This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. A line on a chart linking rock of the same age (especially as measured using the ratios of lead isotopes)
    • Word Usage
    "The most direct means for calculating the Earth's age is a Pb/Pb isochron age, derived from samples of the Earth and meteorites."
     
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