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Noun: Hadean eon
  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
    - Hadean, Hadean time, Hadean aeon, Priscoan, Priscoan eon, Priscoan aeon

Type of: aeon, eon

Encyclopedia: Hadean eon

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hackwork
had best
had better
Had crime
hadal
haddock
hade
Hadean
Hadean aeon
Hadean eon
Hadean time
Hades
Hadith
hadith
hadj
hadji
hadn't
Hadrian
Hadrian's Wall
hadron