Definitions for hadeanheɪˈdi ən, ˈheɪ di ən
Random House Webster's College Dictionary
Ha•desˈheɪ diz(n.)
(in Greek myth) the underworld inhabited by the spirits of the dead.
Category: Mythology
the ancient Greek god ruling over the underworld.
Category: Peoples
(in the Revised Version of the New Testament) the abode of the dead.
Category: Bible
(often l.c.) hell.
Ha•de•anheɪˈdi ən, ˈheɪ di ən(adj.)
Princeton's WordNet
Hadean, Hadean time, Hadean eon, Hadean aeon, Priscoan, Priscoan eon, Priscoan aeon(adj)
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, Plutonian, Tartarean(adj)
of or relating to or characteristic of Hades or Tartarus
Wiktionary
Hadean(Noun)
The Hadean eon.
Hadean(Adjective)
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.
Origin: From ᾍδης
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