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Priscoan
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
synonym
Hadean
Hadean aeon
Hadean eon
Hadean time
Priscoan aeon
Priscoan eon
instance hypernym
aeon
eon
Priscoan vs Hadean
Priscoan vs Hadean aeon
Priscoan vs Hadean eon
Priscoan vs Hadean time
Priscoan vs Priscoan aeon
Priscoan vs Priscoan eon
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