Share this entry

Share this page


Line breaks: geol|ogy
Pronunciation: /dʒɪˈɒlədʒi

Definition of geology in English:


[mass noun]
1The science which deals with the physical structure and substance of the earth, their history, and the processes which act on them.
Example sentences
  • Physical sciences, particularly earth sciences such as geology and hydrology, are popular subjects for study and research in Oman's university.
  • The country has produced important work in biology, medicine, geology, mathematics, physics, genetics, psychology, and anthropology.
  • John, who left school at 16, learned in early March that he would receive his BSc degree in geology and earth sciences just a month before 25-year-old Alyson's own graduation.
1.1The geological features of a district: the geology of the Outer Hebrides
More example sentences
  • I have tried to cover the basic geology and mineralogy of the district and hit a few of the district's highlights.
  • Some of this stems from a poor understanding of wetland geology and what wetland landforms are.
  • The details of regional geology together with extensional folds in the Alasehir graben are enough to refute a short lived contractional tectonics in late Miocene to Pliocene in western Turkey.
1.2The geological features of a planetary body: an article on the Moon’s geology
More example sentences
  • The seven science instruments on the piano-sized probe would shed light on the bodies' surface properties, geology, interior makeup and atmospheres.
  • Paper-based fieldwork methods have made fundamental contributions to our current state of knowledge of the Earth's surface and subsurface geology.
  • These use remote sensing and instruments that can scratch away surfaces to analyse the geology of the Red Planet.


late 18th century: from modern Latin geologia, from Greek 'earth' + -logia (see -logy).



Pronunciation: /dʒiːəˈlɒdʒɪk/
Example sentences
  • Water release from volcanic eruptions through geologic time has produced the Earth's oceans and atmosphere.
  • The book also provides a geologic overview of Wyoming, stressing the uplifted mountainous areas of the state.
  • This is the first map of Wadi Sikait to combine topographic and geologic information, and also to show the distribution of ancient mine workings.


Pronunciation: /dʒiːəˈlɒdʒɪk(ə)l/
Example sentences
  • There is no stratigraphic or other geological evidence here for a break between the two volcanic episodes.
  • It is noteworthy that this map closely matches the petrographic contours of the geological map.
  • We then present new geological and geomorphological data from the eastern tip of the fault.


Pronunciation: /dʒiːəˈlɒdʒɪk(ə)li/
Example sentences
  • The proposed names for six geologically distinct terranes are given, and events are listed in chronological order.
  • Geothermal energy can be harnessed from the Earth's natural heat associated with active volcanoes or geologically young inactive volcanoes still giving off heat at depth.
  • The net effect of plate-tectonics forces acting on this geologically complicated region is to squeeze parts of Asia eastward toward the Pacific Ocean.


Example sentences
  • Canadian geologists are contributing a broad Earth science approach to an ever-widening list of needs.
  • Modeling is not necessary for most practical questions that a petroleum geologist is concerned with in a study of diagenesis.
  • Wetlands have not gained as much attention as they ought to by geologists despite being so prevalent in the Canadian landscape.


(also geologise) verb
Example sentences
  • It was the only day on Scott's final arduous march homewards from the pole that they were to devote to ‘geologizing.’
  • The problem of doing on-the-spot lunar geologising in an efficient way awaited the electric Rover.
  • It's great to finally be working back in Appalachia after 25 years of geologizing in so many other parts of the world.

Definition of geology in:

Share this entry

Share this page


What do you find interesting about this word or phrase?

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day prepotent
Pronunciation: ˌprēˈpōtnt
greater than others in power or influence