Definition of Hadean in English :
Define Hadean in English
Hadean meaning in English
Meaning of Hadean in English
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Hadean pronunciation in English
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Hadean
see synonyms of hadeanNoun
1. hadean, hadean aeon, hadean eon, hadean time, priscoan, priscoan aeon, priscoan eon
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
Adjective
WordNet Lexical Database for English. Princeton University. 2010.
Hadean
see synonyms of hadeanWebster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
Hadean
see synonyms of hadeanThe American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.