precambrian_eon | ||
1. | [ noun ] (geology) the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago | |
Synonyms: | Precambrian_period precambrian_aeon Precambrian | |
Related terms: | geological_time era eon Archeozoic archaeozoic Proterozoic | |
Similar spelling: |
precambrian_aeon Precambrian_period |