Hadean

[adj] - of or relating to or characteristic of Hades or Tartarus
Found on http://www.webdictionary.co.uk/definition.php?query=Hadean

Hadean

Plutonian adjective of or relating to or characteristic of Hades or Tartarus
Found on https://www.encyclo.co.uk/local/20974

Hadean

Hadean A descriptive word meaning place of the dead or hellish.
Found on http://www.wordinfo.info/words/index/info/view_unit/950/

Hadean

Geologic eon that occurred from 3800 to 4600 million years ago. The Earth's oldest rocks date to the end of this time period.
Found on http://www.physicalgeography.net/physgeoglos/h.html

Hadean

The earliest subdivision of the Precambrian, spanning the time between the formation of the Earth, about 4.5 billion years ago, and the start of the Archaean era, 3.8 billion years ago. This interval predates the period of true geologic time since no rocks of this age are known on Earth, with the exception of a few meteorites.
Found on https://www.encyclo.co.uk/local/21202

Hadean

The Hadean n is the first geologic eon of Earth and lies before the Archean. It began with the formation of the Earth about 4.5 billion years ago and ended, as defined by the ICS, {Ma|Eoarchean}. The name `Hadean` comes from Hades, the ancient Greek god of the underworld, in reference to the hellish conditions on Earth at the time: the planet ha.....
Found on http://en.wikipedia.org/wiki/Hadean

Hadean

The oldest eon in Earth history, extending from the origin of the Earth to about 3.9 billion years ago.
Found on https://www.encyclo.co.uk/local/22327
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