archeozoic | ||
1. | [ adjective ] (geology) formed in the earlier of two divisions of the Precambrian era | |
Synonyms: | archaeozoic | |
Examples: | "archeozoic life forms" |
|
Related terms: | geology early | |
2. | [ noun ] (geology) the time prior to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life | |
Synonyms: | archaeozoic_era archean archean_era archeozoic_era archaeozoic | |
Related terms: | era Precambrian | |
3. | [ noun ] (geology) the time from 1.5 billion to 5 billion years ago; earth's crust formed; unicellular organisms are earliest forms of life | |
Synonyms: | Archeozoic_era Archaeozoic_era archaeozoic_aeon archean archean_aeon archean_eon archeozoic_eon Archaeozoic | |
Related terms: | eon era Precambrian | |
Similar spelling: |
Archaeozoic archegonium archegonial archesporium archesporial archegoniate archespore archaic |