[syn: archeozoic, archaeozoic]
The Collaborative International Dictionary of English v.0.48:
archeozoic \archeozoic\ adj.
1. 1 (Geol.) same as archaeozoic.
Syn: archaeozoic
[WordNet 1.5]
The Collaborative International Dictionary of English v.0.48:
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]
WordNet (r) 3.0 (2006):
archeozoic
adj 1: of or belonging to earlier of two divisions of the
Precambrian era; "archeozoic life forms" [syn:
archeozoic, archaeozoic]
n 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 [syn: Archean, Archean eon,
Archean aeon, Archeozoic, Archaeozoic, Archeozoic
eon, Archaeozoic aeon]