Also found in: Thesaurus, Encyclopedia, Wikipedia.


n. pl. ge·ol·o·gies
1. The scientific study of the origin, history, and structure of the earth.
2. The structure of a specific region of the earth's crust.
3. A book on geology.
4. The scientific study of the origin, history, and structure of the solid matter of a celestial body.

[Medieval Latin geōlogia, study of earthly things : Greek geō-, geo- + Greek -logiā, -logy.]

ge′o·log′ic (jē′ə-lŏj′ĭk), ge′o·log′i·cal adj.
ge′o·log′i·cal·ly adv.
ge·ol′o·gist n.


(dʒiˈɒl ə dʒɪst)

a person who specializes in geologic research and study.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.geologist - a specialist in geologygeologist - a specialist in geology    
geophysicist - a geologist who uses physical principles to study the properties of the earth
hydrologist - a geologist skilled in hydrology
oil geologist, petroleum geologist - a specialist in petroleum geology
scientist - a person with advanced knowledge of one or more sciences
عالم جيولوجي


[dʒɪˈɒlədʒɪst] Ngeólogo/a m/f


[dʒiˈɒlədʒɪst] ngéologue mf


nGeologe m, → Geologin f


[dʒɪˈɒlədʒɪst] ngeologo/a


(dʒiˈolədʒi) noun
the science of the history and development of the Earth as shown by rocks etc. He is studying geology.
geological (dʒiəˈlodʒikəl) adjective
a geological survey.
ˌgeoˈlogically adverb
geˈologist noun
References in classic literature ?
It is hardly possible for me even to recall to the reader, who may not be a practical geologist, the facts leading the mind feebly to comprehend the lapse of time.
Ere entering upon the subject of Fossil Whales, I present my credentials as a geologist, by stating that in my miscellaneous time i have been a stone-mason, and also a great digger of ditches, canals, and wells, wine-vaults, cellars, and cisterns of all sorts.
We look forward with impatience for some able geologist to explore this sublime but almost unknown region.
He is also our local geologist and natural historian.
Harris 1 Butler 17 Guides 12 Waiters 4 Surgeons 1 Footman 1 Geologist 1 Barber 1 Botanist 1 Head Cook 3 Chaplains 9 Assistants
The neighbourhood of the upper Thames is rich in Roman relics, and my surmise seemed to me a very probable one; but our serious young man, who is a bit of a geologist, pooh-poohed my Roman relic theory, and said it was clear to the meanest intellect (in which category he seemed to be grieved that he could not conscientiously include mine) that the thing the boy had found was the fossil of a whale; and he pointed out to us various evidences proving that it must have belonged to the preglacial period.
Indeed so very striking was the resemblance between the water and the land, that, however much the geologist might sneer at so simple a theory, it would have been difficult for a poet not to have felt, that the formation of the one had been produced by the subsiding dominion of the other.
No one can make an affidavit to the contrary, and therefore I still say nothing against the supposition: indeed, were geologists to assert that the whole continent of America had in like manner been formed by the simultaneous explosion of a train of Etnas laid under the water all the way from the North Pole to the parallel of Cape Horn, I am the last man in the world to contradict them.
It spreads forth into undulating and treeless plains, and desolate sandy wastes wearisome to the eye from their extent and monotony, and which are supposed by geologists to have formed the ancient floor of the ocean, countless ages since, when its primeval waves beat against the granite bases of the Rocky Mountains.
I have shown specimens of this incrustation to several geologists, and they all thought that they were of volcanic or igneous origin
It is a truly grotesque vegetation, whose forms and color we see imitated in bronze, a sort of architectural foliage more ancient and typical than acanthus, chiccory, ivy, vine, or any vegetable leaves; destined perhaps, under some circumstances, to become a puzzle to future geologists.
There are almost as many conjectures as to that as there are geologists," was his answer.