Synonyms of Hadean Eon in English :
Antonyms of Hadean Eon in English
Thesaurus of Hadean Eon in English
Hadean Eon
see definition of hadean eonSynonyms of hadean eon
1. (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