n. 早期前寒武纪

Archeozoic \Archeozoic\ n.
1. 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}.

Syn: Archaeozoic, Archeozoic era, Archaeozoic era
[WordNet 1.5]

archeozoic \archeozoic\ adj.
1. 1 (Geol.) same as {archaeozoic}.

Syn: archaeozoic
[WordNet 1.5]