HeyRua Get the app

Geology in Irish (Geolaíocht): Meaning, Pronunciation, Usage

The Irish for geology is geolaíocht, a feminine noun.
Updated October 2026Report a mistake

How to say “geology” in Irish

Irish:
geolaíocht
English:
geology
Word type:
noun
Gender:
feminine, third declension
Pronunciation:
“gyoh-LEE-ukht”  /ɟoːˈl̪ˠiːəxt̪ˠ/
Various forms
Genitive singular:
geolaíochta, na geolaíochta (e.g. roinn na geolaíochta, the geology department)

What does “geolaíocht” mean?

geology
The science that studies the earth, its rocks and how they were formed.Also: earth science, study of rocks.

“Geolaíocht” with the article

Here is geolaíocht after the article (an t-alt).

an gheolaíocht
the geology
Lenition: g becomes gh after an (feminine noun)

“Geolaíocht” in a sentence: Irish examples

Common Irish sentences using geolaíocht, the Irish word for geology.

Tá suim mhór agam sa gheolaíocht.
I'm very interested in geology.
Rinne sí staidéar ar gheolaíocht san ollscoil.
She studied geology at university.
Is ábhar suimiúil í an gheolaíocht.
Geology is an interesting subject.
Tá léachtóir geolaíochta ag teacht inniu.
A geology lecturer is coming today.
Cheannaigh mé leabhar faoi gheolaíocht na hÉireann.
I bought a book about the geology of Ireland.
Is aoibhinn le mo dheartháir geolaíocht.
My brother loves geology.
Chuamar ar thuras páirce geolaíochta go Boirinn.
We went on a geology field trip to the Burren.

Other nouns in Irish

More everyday Irish nouns to learn next.

Geology in Irish: frequently asked questions

What is the Irish for geology?

The Irish for geology is geolaíocht (pronounced “gyoh-LEE-ukht”). It’s a feminine noun.

How do you pronounce geolaíocht in Irish?

Geolaíocht is said like “gyoh-LEE-ukht” (IPA /ɟoːˈl̪ˠiːəxt̪ˠ/).

Does geolaíocht have a plural?

No plural form is given for geolaíocht in the standard. Many abstract and mass nouns in Irish have no plural.

Why does geolaíocht change to gheolaíocht or ngeolaíocht?

Irish changes the start of some words after certain words. After mo (my) geolaíocht becomes mo gheolaíocht (lenition), and after ár (our) or i (in) it becomes ár ngeolaíocht (eclipsis).

What do you call a geologist in Irish?

A geologist is 'geolaí', and the adjective 'geological' is 'geolaíoch'.

Is 'geolaíocht' the same as 'tíreolaíocht'?

No: 'geolaíocht' is geology, the study of rocks and the earth's structure, while 'tíreolaíocht' is geography.

Learn Irish by
actually speaking it

Learn everyday Irish words like geolaíocht through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen