geo-
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a combining form meaning “the earth,” used in the formation of compound words: geochemistry.
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Origin of geo-
<Greek geō-, combining form of gê the earth
Other definitions for geo- (2 of 2)
Geo.
abbreviation
George.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use geo- in a sentence
British Dictionary definitions for geo- (1 of 2)
geo
gio
/ (ˈdʒiːəʊ) /
noun plural geos or gios
(esp in Shetland) a small fjord or gully
Word Origin for geo
C18: from Old Norse gjā ravine; related to Old English gionian to yawn
British Dictionary definitions for geo- (2 of 2)
geo-
combining form
indicating earthgeomorphology
Word Origin for geo-
from Greek, from gē 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
Medical definitions for geo-
geo-
pref.
Earth:geophagia.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for geo-
geo-
ge-
A prefix that means earth, as in geochemistry, the study of the Earth's chemistry.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.