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