Found 2 items, similar to Archeozoic.
English → English (WordNet) Definition: Archeozoic Archeozoic n : 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 , Archaeozoic, Archeozoic eon, Archaeozoic aeon]
English → English (gcide) Definition: Archeozoic 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]