priscoan : Idioms & Phrases

Index

priscoan aeon

  • 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
    Priscoan; Hadean aeon; Hadean; Hadean time; Hadean eon; Priscoan aeon.
WordNet

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
    Priscoan; Hadean aeon; Hadean; Hadean time; Hadean eon; Priscoan aeon.
WordNet