ARCHEOZOIC

Definition:

1. [noun] the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
   Synonyms: Archean, Archean eon, Archean aeon, Archeozoic, Archaeozoic, Archeozoic eon, Archaeozoic aeon
   
   
2. [adjective] formed in the earlier of two divisions of the Precambrian era; "archeozoic life forms"
   Synonyms: archaeozoic
   
   

Synonyms:

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