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Stories We Like: A Guide to the Comma

geo-

1.
a combining form meaning “the earth,” used in the formation of compound words:
geochemistry.
Origin
< Greek geō-, combining form of the earth
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for geo-

geo-

combining form
1.
indicating earth geomorphology
Word Origin
from Greek, from earth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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geo- in Medicine

geo- or ge-
pref.
Earth: geophagia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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geo- in Science
geo- or ge-  
A prefix that means "earth," as in geochemistry, the study of the Earth's chemistry.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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