archaeozoic
archaeozoic archaeozoic, Archaeozoic Ar`ch[ae]*o*zo"ic, a. [Gr. 'archai^os ancient + zw^,on animal.] (Zo["o]l.) Like or belonging to the earliest forms of animal life. [1913 Webster]

2. (Geol.) formed in or belonging to the earlier of two divisions of the Precambrian era. archaeozoic life forms

Syn: archeozoic [WordNet 1.5]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Archaeozoic — archaeozoic, Archaeozoic Ar ch[ae]*o*zo ic, a. [Gr. archai^os ancient + zw^,on animal.] (Zo[ o]l.) Like or belonging to the earliest forms of animal life. [1913 Webster] 2. (Geol.) formed in or belonging to the earlier of two divisions of the… …   The Collaborative International Dictionary of English

  • Archaeozoic — n. [Gr. archai^os ancient + zw^,on animal.] the time from 1.5 billion to 5 billion years ago; the time when the earth s crust formed; a time when only unicellular organisms and the earliest forms of life are present. Syn: Archeozoic, Archeozoic… …   The Collaborative International Dictionary of English

  • Archaeozoic — [är΄kēə zō′ik] adj. ARCHEOZOIC …   English World dictionary

  • Archaeozoic — 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, ↑Archeozoic eon, ↑Archaeozoic aeon •… …   Useful english dictionary

  • Archaeozoic — 1. noun Period of time determined to exist prior to 2.5 thousand million years ago. 2. adjective Of or pertaining to the Archaeozoic …   Wiktionary

  • Archaeozoic — /ˌakiəˈzoʊɪk / (say .ahkeeuh zohik) adjective 1. relating to the most ancient period of the earth s history, during which the earliest forms of life presumably appeared. –noun 2. the Archaeozoic era. 3. Geology the series of rocks preceding the… …   Australian English dictionary

  • archaeozoic — adjective of or belonging to earlier of two divisions of the Precambrian era archeozoic life forms • Syn: ↑archeozoic • Similar to: ↑early • Derivationally related forms: ↑Archaeozoic, ↑Archeozoic (for: ↑ …   Useful english dictionary

  • Archaeozoic — adjective see Archeozoic …   New Collegiate Dictionary

  • Archaeozoic — /ahr kee euh zoh ik/, adj., n. Geol. Archeozoic. * * * …   Universalium

  • archaeozoic — adj. referring to the earliest geological era …   English contemporary dictionary

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