WordWeb Online

1. Of or belonging to earlier of two divisions of the Precambrian era
   "archeozoic life forms"
   - archaeozoic

1. The time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
   - Archean [US], Archean eon, Archean aeon, Archaeozoic, Archeozoic eon, Archaeozoic aeon, Archaean

See also: early

Type of: aeon, eon

Part of: Precambrian, Precambrian aeon, Precambrian eon, Precambrian period

Encyclopedia: Archeozoic