01 adj. same as archaeozoic.
- 1.
Syn.
archaeozoic
Entry
2 senses · 2 variants
Webster, 1913
archeozoic
· IPA
02 n. the time from 1.5 billion to 5 billion years ago, when the earth's crust was formed; the time when only unicellular organisms and the earli…
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1.
the time from 1.5 billion to 5 billion years ago, when the earth's crust was formed; the time when only unicellular organisms and the earliest forms of life are present. Same as Archaeozoic. See: Archaeozoic
Syn.
Archaeozoic, Archeozoic era, Archaeozoic era