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).
- synonyms: Hadean, Hadean eon, Hadean aeon, Priscoan, Priscoan eon, Priscoan aeon
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). hadean time. Retrieved September 23, 2026, from http://smartdefine.org/hadean_time/definitions/1283719 |
| Chicago | WordNet. 2010. "hadean time" http://smartdefine.org/hadean_time/definitions/1283719 (accessed September 23, 2026). |
| Harvard | WordNet 2010, hadean time, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/hadean_time/definitions/1283719>. |
| MLA | WordNet. "hadean time" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/hadean_time/definitions/1283719> |