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Selenium in Irish (Seiléiniam): Meaning, Pronunciation, Usage

The Irish for selenium is seiléiniam, a masculine noun.
Updated October 2026Report a mistake

How to say “selenium” in Irish

Irish:
seiléiniam
English:
selenium
Word type:
noun
Gender:
masculine
Pronunciation:
“sheh-LAY-nee-um”  /ʃɛˈlʲeːnʲiəmˠ/
Various forms
Genitive singular:
seiléiniam, an tseiléiniam (e.g. uimhir adamhach an tseiléiniam, the atomic number of selenium)

What does “seiléiniam” mean?

selenium
Selenium is a chemical element, a non-metal used in electronics, glass-making and as a trace nutrient.Also: se, chemical element.

“Seiléiniam” with the article

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

an seiléiniam
the selenium
No change after an

“Seiléiniam” in a sentence: Irish examples

Common Irish sentences using seiléiniam, the Irish word for selenium.

Is dúil cheimiceach é seiléiniam.
Selenium is a chemical element.
Tá seiléiniam le fáil i gcnónna Brasaíleacha.
Selenium is found in Brazil nuts.
Úsáidtear an seiléiniam i ngléasanna leictreonacha.
Selenium is used in electronic devices.
Is é Se siombail an tseiléiniam.
Se is the symbol for selenium.
Bíonn beagán seiléiniam de dhíth ar an gcorp.
The body needs a little selenium.
Tá an iomarca seiléiniam nimhiúil.
Too much selenium is poisonous.
D'fhoghlaimíomar faoin seiléiniam sa rang ceimice.
We learned about selenium in chemistry class.

Other nouns in Irish

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Selenium in Irish: frequently asked questions

What is the Irish for selenium?

The Irish for selenium is seiléiniam (pronounced “sheh-LAY-nee-um”). It’s a masculine noun.

How do you pronounce seiléiniam in Irish?

Seiléiniam is said like “sheh-LAY-nee-um” (IPA /ʃɛˈlʲeːnʲiəmˠ/).

Does seiléiniam have a plural?

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

Why does seiléiniam change to sheiléiniam?

After words like mo (my) and do (your) the first letter is lenited: mo sheiléiniam. After ár (our) it stays ár seiléiniam, because s does not take eclipsis.

Does 'seiléiniam' take the article?

Element names often take the article in Irish, as in 'an seiléiniam', with genitive 'an tseiléiniam', though the bare form 'seiléiniam' is also used.

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