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Thorium in Irish (Tóiriam): Meaning, Pronunciation, Usage

The Irish for thorium is tóiriam, a masculine noun.
Updated October 2026Report a mistake

How to say “thorium” in Irish

Irish:
tóiriam
English:
thorium
Word type:
noun
Gender:
masculine
Pronunciation:
“TOH-ree-um”  /ˈt̪ˠoːɾʲiəmˠ/
Various forms
Genitive singular:
tóiriam, an tóiriam (e.g. uimhir adamhach an tóiriam, the atomic number of thorium)

What does “tóiriam” mean?

thorium
Thorium is a radioactive metallic chemical element with the symbol Th, used as a nuclear fuel.Also: th, radioactive element, chemical element.

“Tóiriam” with the article

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

an tóiriam
the thorium
No change after an

“Tóiriam” in a sentence: Irish examples

Common Irish sentences using tóiriam, the Irish word for thorium.

Is dúil radaighníomhach é tóiriam.
Thorium is a radioactive element.
Is é Th an tsiombail cheimiceach atá ag tóiriam.
Th is the chemical symbol for thorium.
Úsáidtear an tóiriam mar bhreosla núicléach.
Thorium is used as a nuclear fuel.
Tá tóiriam le fáil i roinnt mianraí.
Thorium is found in some minerals.
D'fhoghlaimíomar faoi airíonna an tóiriam inniu.
We learned about the properties of thorium today.
Ainmníodh an tóiriam as dia Lochlannach.
Thorium was named after a Norse god.
Níl mórán tóiriam sa charraig seo.
There isn't much thorium in this rock.

Other nouns in Irish

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Thorium in Irish: frequently asked questions

What is the Irish for thorium?

The Irish for thorium is tóiriam (pronounced “TOH-ree-um”). It’s a masculine noun.

How do you pronounce tóiriam in Irish?

Tóiriam is said like “TOH-ree-um” (IPA /ˈt̪ˠoːɾʲiəmˠ/).

Does tóiriam have a plural?

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

Why does tóiriam change to thóiriam or dtóiriam?

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

Is 'tóiriam' related to the god Thor?

Yes, the element was named after Thor, the Norse god, and the Irish 'tóiriam' is simply an adaptation of the international name thorium.

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