geo-


Origin:
< Greek geō-, combining form of the earth

Dictionary.com Unabridged

Geo.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
geo or gio (ˈdʒiːəʊ)
 
n , pl geos, gios
(esp in Shetland) a small fjord or gully
 
[C18: from Old Norse gjā ravine; related to Old English gionian to yawn]
 
gio or gio
 
n
 
[C18: from Old Norse gjā ravine; related to Old English gionian to yawn]

geo-
 
combining form
indicating earth: geomorphology
 
[from Greek, from earth]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

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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American Heritage
Science Dictionary
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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American Heritage
Abbreviations & Acronyms
GEO
  1. genetically engineered organism

  2. geosynchronous earth orbit

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Maybe even geo nuclear with geothermal and nuclear to give the end boost of
  power to a geothermal plant.
Because it's an extinct geo-political society, there is an added archaeological
  dimension.
Now the age of geopolitics has given way to an age of what be called
  geo-economics.
Alternatively, the high-scorers may simply have relatively fewer interesting
  things to geo-tag.
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