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archaeozoic

 - 6 dictionary results

Ar⋅chae⋅o⋅zo⋅ic

  [ahr-kee-uh-zoh-ik]
Use archaeozoic in a Sentence
–adjective, noun Geology.
Archeozoic.

Ar⋅che⋅o⋅zo⋅ic

  [ahr-kee-uh-zoh-ik] Geology
–adjective
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, blue-green algae and bacteria, have been recovered.
–noun
2. the Archeozoic division of geologic time or the rock systems formed then.
Also, Archaeozoic.

Origin:
1870–75; archeo- + Gk zō() life + -ic
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To archaeozoic
Ar·chae·o·zo·ic   (är'kē-ə-zō'ĭk)   
adj.   & n.
Variant of Archeozoic.
Ar·che·o·zo·ic also Ar·chae·o·zo·ic   (är'kē-ə-zō'ĭk)   
n.  See Archean.
Ar'che·o·zo'ic adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Science Dictionary
Archaeozoic   (är'kē-ə-zō'ĭk)  Pronunciation Key 
Another spelling of Archeozoic.
Archeozoic also Archaeozoic   (är'kē-ə-zō'ĭk)  Pronunciation Key 
See Archean.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
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