Definition of Hadean

1. Adjective. Of or relating to or characteristic of Hades or Tartarus.

Exact synonyms: Plutonian, Tartarean
Similar to: Infernal
Derivative terms: Hades, Tartarus

2. 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.

Definition of Hadean

1. Adjective. (geology) Of, or relating to the geologic eon from about 4,600 to 3,800 million years ago; marked by the formation of the solar system, a stable Earth-Moon orbit and the first rocks. ¹

2. Noun. (geology) The Hadean eon. ¹

¹ Source: wiktionary.com

Lexicographical Neighbors of Hadean

Habronema megastoma
Habronema microstoma
Habronema muscae
Habs
Habsburg
Hachiman
Hackelia
Hackintosh
Hackintoshes
Hackney
Hacky-Sack
Hacky-Sacks
Had crime
Hadcock
Haddy
Hadean
Hadean aeon
Hadean eon
Hadean time
Hades
Hadgkiss
Hadhramauti
Hadhramautis
Hadramauti
Hadramautis
Hadrian
Hadrian's Wall
Hadrosauridae
Hadrurus
Hadza

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