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 … The Collaborative International Dictionary of English
archeozoic — adj. 1. 1 (Geol.) same as {archaeozoic}. Syn: archaeozoic [WordNet 1.5] … The Collaborative International Dictionary of English
Archeozoic — [är΄kē ə zō′ik] adj. [ ARCHEO + ZOIC] early Precambrian; Archean the Archeozoic THE ARCHEAN (see phrase under ARCHEAN) … English World dictionary
Archeozoic — 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 • Syn: ↑Archean, ↑Archean eon, ↑Archean aeon, ↑Archaeozoic, ↑Archeozoic eon, ↑Archaeozoic aeon •… … Useful english dictionary
archeozoic — adjective of or belonging to earlier of two divisions of the Precambrian era archeozoic life forms • Syn: ↑archaeozoic • Similar to: ↑early • Derivationally related forms: ↑Archaeozoic (for: ↑ … Useful english dictionary
Archeozoic — also Archaeozoic adjective Date: 1872 Archean 1 • Archeozoic noun … New Collegiate Dictionary
Archeozoic — /ahr kee euh zoh ik/, Geol. adj. 1. noting or pertaining to the earlier half of the Precambrian Era, from about 5 billion to 2.5 billion years ago, during which the earliest datable rocks were formed and from which the oldest known fossil forms,… … Universalium
Archeozoic eon — 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 • Syn: ↑Archean, ↑Archean eon, ↑Archean aeon, ↑Archeozoic, ↑Archaeozoic, ↑Archaeozoic aeon • Derivationally… … Useful english dictionary
Archeozoic — 1. noun The Archaean Eon. 2. adjective Pertaining to the Archaean Eon … Wiktionary
archeozoic — adj. referring to the earliest geological era … English contemporary dictionary