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Hadean time   Listen
Hadean time

noun
1.
The earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life.  Synonyms: Hadean, Hadean aeon, Hadean eon, Priscoan, Priscoan aeon, Priscoan eon.






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Words linked to "Hadean time" :   aeon, eon



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