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Definition of Archaeozoic
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.
Exact synonyms: Archaeozoic Aeon, Archean, Archean Aeon, Archean Eon, Archeozoic, Archeozoic Eon
Group relationships: Precambrian, Precambrian Aeon, Precambrian Eon, Precambrian Period
Generic synonyms: Aeon, Eon
Derivative terms: Archean, Archeozoic
Group relationships: Precambrian, Precambrian Aeon, Precambrian Eon, Precambrian Period
Generic synonyms: Aeon, Eon
Derivative terms: Archean, Archeozoic
2. Adjective. Of or belonging to earlier of two divisions of the Precambrian era. "Archeozoic life forms"
Exact synonyms: Archeozoic
Category relationships: Geology
Similar to: Early
Derivative terms: Archeozoic
Category relationships: Geology
Similar to: Early
Derivative terms: Archeozoic
Definition of Archaeozoic
1. Proper noun. Period of time determined to exist prior to 2.5 thousand million years ago. ¹
2. Adjective. Of or pertaining to the Archaeozoic. ¹
¹ Source: wiktionary.com
Medical Definition of Archaeozoic
1.