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Archeozoic

[ahr-kee-uh-zoh-ik]

adjective

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

the Archeozoic division of geologic time or the rock systems formed then.

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Archeozoic is always a great word to know.

So is porosity. Does it mean:

ratio of the volume of the pores of a substance to the total volume of the mass

portion of the earth's surface consisting of disintegrated rock and humus

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Also, Archaeozoic.

Origin:
1870–75; archeo- + Greek zō(ḗ) life + -ic

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Collins

World English Dictionary

Archaeozoic or esp (US) Archeozoic (ˌɑːkɪəˈzəʊɪk)

—*adj*
	a former word for Archaean

Archeozoic or esp (US) Archeozoic

—*adj*

Archeozoic (ˌɑːkɪəˈzəʊɪk)

—*adj*
	a variant spelling (esp US) of Archaeozoic

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage

Science Dictionary

Archeozoic also Archaeozoic

(är'kē-ə-zō'ĭk) Pronunciation Key
See Archean.

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Related Words

Archean archeo-

Keewatin Laurentian

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Archeozoic

Ar·che·o·zo·ic