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Definition of Priscoan aeon
1. Noun. 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.
Exact synonyms: Hadean, Hadean Aeon, Hadean Eon, Hadean Time, Priscoan, Priscoan Eon
Generic synonyms: Aeon, Eon
Generic synonyms: Aeon, Eon
Lexicographical Neighbors of Priscoan Aeon
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