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Insulator in Irish (Inslitheoir): Meaning, Pronunciation, Usage

The Irish for insulator is inslitheoir, a masculine noun (plural inslitheoirí).
Updated October 2026Report a mistake

How to say “insulator” in Irish

Irish:
inslitheoir
English:
insulator
Word type:
noun
Gender:
masculine, third declension
Pronunciation:
“IN-shlih-hor”  /ˈɪnʲʃlʲɪhoːrʲ/
Various forms
Plural:
inslitheoirí (insulators)
Genitive singular:
inslitheora, an inslitheora (e.g. éifeachtacht an inslitheora, the effectiveness of the insulator)
Genitive plural:
inslitheoirí, na n-inslitheoirí (e.g. tiús na n-inslitheoirí, the thickness of the insulators)

What does “inslitheoir” mean?

insulator
A material or device that does not let electricity, heat or sound pass through easily.Also: insulating material, electrical insulator.

“Inslitheoir” with the article

The plural of insulator in Irish is inslitheoirí. Here is inslitheoir after the article (an t-alt), in the singular and the plural.

an t-inslitheoir
the insulator
Masculine nouns take t before a vowel after an
na hinslitheoirí
the insulators
Plural: na adds h before a vowel

“Inslitheoir” in a sentence: Irish examples

Common Irish sentences using inslitheoir, the Irish word for insulator.

Is inslitheoir maith é an rubar.
Rubber is a good insulator.
Briseadh an t-inslitheoir ar an gcuaille.
The insulator on the pole was broken.
Bíonn adhmad ina inslitheoir in áit miotail.
Wood acts as an insulator instead of metal.
Tá na hinslitheoirí déanta as gloine.
The insulators are made of glass.
Ní sheolann inslitheoir leictreachas go héasca.
An insulator does not conduct electricity easily.
Scrúdaigh an leictreoir dromchla an inslitheora.
The electrician examined the surface of the insulator.
Úsáidtear plaisteach mar inslitheoir sa tsreang.
Plastic is used as an insulator in the wire.

Other nouns in Irish

More everyday Irish nouns to learn next.

Insulator in Irish: frequently asked questions

What is the Irish for insulator?

The Irish for insulator is inslitheoir (pronounced “IN-shlih-hor”). It’s a masculine noun and the plural is inslitheoirí.

How do you pronounce inslitheoir in Irish?

Inslitheoir is said like “IN-shlih-hor” (IPA /ˈɪnʲʃlʲɪhoːrʲ/).

What is the plural of insulator in Irish?

The plural of inslitheoir is inslitheoirí; with the article, na hinslitheoirí means “the insulators”. The genitive plural is inslitheoirí, as in tiús na n-inslitheoirí (the thickness of the insulators).

Why does inslitheoir sometimes have a t or h in front of it?

Irish nouns beginning with a vowel take a prefix after certain words: an t-inslitheoir (the insulator), a hinslitheoir (her insulator), a n-inslitheoir (their insulator), na hinslitheoirí (the insulators).

What is the opposite of inslitheoir?

The opposite is seoltóir, a conductor, which lets electricity or heat pass through.

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