hadean
Kelime Anlamı :
1. hadeyan (prekambriyen'in ilk sistemi).
Tanımlar :
1.
of or relating to or characteristic of hades or tartarus
2. 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
2. 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
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.