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geo-
1- a combining form meaning “the earth,” used in the formation of compound words:
geochemistry.
Geo.
2abbreviation for
- George.
geo
1/ ˈdʒiːəʊ /
noun
- (esp in Shetland) a small fjord or gully
geo-
2combining_form
- indicating earth
geomorphology
geo–
- A prefix that means “earth,” as in geochemistry, the study of the Earth's chemistry.
Word History and Origins
Origin of geo-1
Word History and Origins
Origin of geo-1
Origin of geo-2
Example Sentences
And RT is a delightful way (as geo-politics and professional wrestling are not) to bond with your teenage daughter.
They are imminently necessary given geo-political conditions.
Geo-location services of this sort do not have absolutely foolproof accuracy.
The current geo-political stand-off between Israel, Iran, and the US?
However, geo-strategic fault lines played out as Sunna/Shia sectarianism will feature heavily too.
The remission of punishment was in the discretion of the Governor-in-chief: the 30 Geo.
We visited the celebrated Haviland plant at Limoges, and met Geo.
Geo reached toward the boy's neck where a ceramic disk hung from a leather thong.
The boy's black eyes darted under twin spots of light from the lamp, to Urson, to Geo, then back.
Geo stepped forward, held the boy's chin in his hand and examined the face and peered into the mouth.
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Words That Use geo-
What does geo- mean?
Geo- is a combining form used like a prefix meaning “earth.” It is often used in scientific terms in a variety of fields. In some rare instances, such as the term geocode, geo- is used as an abbreviation of geographical.
Geo- comes from Greek gê, meaning “earth.” A synonym of gê is khthṓn, which is the source of several words related to the underworld, such as chthonic.
What are variants of geo-?
When combined with words or word elements that begin with a vowel, geo- becomes ge-, as in geanticline. Want to know more? Read our Words That Use article for ge-.
Examples of geo-
An example of a word you have likely encountered that features geo- is geology, “the science that deals with the dynamics and physical history of the earth.”
We know geo- means “earth,” so the -logy portion of the word? That’s right, -logy refers to “study,” from the Greek logía. Geology literally translates to “study of the earth.”
What are some words that use the combining form geo-?
- geobotany
- geocarpy
- geocline
- geocentric
- geochemistry
- geochronology
- geochronometry
- geodesic dome
- geodesic line
- geodesy (using the equivalent form of geo- in Greek)
- geodynamics
- geognosy (using the equivalent form of geo- in French)
- geographical (using the equivalent form of geo- in Greek)
- geography (using the equivalent form of geo- in Greek)
- geohydrology
- geological timescale
- geologist
- geomagnetic
- geometry (using the equivalent form of geo- in Greek)
- geomorphic
- geonavigation
- geophone
- geophysics
- geophyte
- geopolitical
- georama
- geoscience
- geoscientist
- geosphere
- geosyncline
- geotag
- geotaxis
- geotectonic
- geotherm
- geothermal
- geothermal energy
- geotropism
What are some other forms that geo- may be commonly confused with?
Not every word that begins with the exact letters ge-, such as gearbox or geoduck, is necessarily using the combining form ge- to denote “earth.” Learn why geoduck is the name of a kind of saltwater clam at our entry for the word.
Break it down!
Given the meaning of geo-, what is another name for the discipline known as geoscience?
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