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uranalysis
Urania
uranic
uraninite
uranite
uranium
uranium 235
uranium 238
uranium-lead dating
uranography
uranous
Uranus
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uranium-lead dating
u·ra·ni·um-lead dat·ing


noun 
Definition:
 
determination of age of mineral: the determination of the age of a uranium-containing mineral by measuring the level of lead isotope produced by the radioactive decay of uranium, which occurs at a known rate
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