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Heat insulation in Irish (Teasdíonadh): Meaning, Pronunciation, Usage

The Irish for heat insulation is teasdíonadh, a masculine noun. Ag teasdíonadh is insulating, from the verb teasdíon.
Updated October 2026Report a mistake

How to say “heat insulation” in Irish

Irish:
teasdíonadh
English:
heat insulation
Word type:
noun (verbal noun)
Verbal noun of:
teasdíon, to insulate (ag teasdíonadh, insulating)
Gender:
masculine
Pronunciation:
“TYAS-dee-uh-noo”  /tʲasˠdʲiːənˠə/
Various forms
Genitive singular:
teasdíonta, an teasdíonta (e.g. ábhar teasdíonta, insulation material)

What does “teasdíonadh” mean?

heat insulation
The act or process of insulating something so that heat does not escape or enter; it is the verbal noun of the verb teasdíon.Also: thermal insulation, insulating, lagging.

“Teasdíonadh” as a verbal noun

After ag, teasdíonadh means insulating: it is the verbal noun of the verb teasdíon (to insulate). A noun that follows it goes into the genitive.

agat
+
teasdíonadhverbal noun
=
ag teasdíonadhinsulating

“Teasdíonadh” with the article

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

an teasdíonadh
the heat insulation
No change after an

“Teasdíonadh” in a sentence: Irish examples

Common Irish sentences using teasdíonadh, the Irish word for heat insulation.

Tá teasdíonadh maith ag teastáil sa teach seo.
This house needs good insulation.
Rinneadh an teasdíonadh san áiléar anuraidh.
The attic insulation was done last year.
Laghdaíonn teasdíonadh an bille teasa go mór.
Insulation cuts the heating bill a lot.
Cheannaíomar ábhar teasdíonta sa siopa crua-earraí.
We bought insulation material in the hardware shop.
Tá deontas ar fáil le haghaidh teasdíonta.
There is a grant available for insulation.
Níl aon teasdíonadh ar na píopaí fós.
There is no lagging on the pipes yet.
Is fiú airgead a chaitheamh ar theasdíonadh na mballaí.
It is worth spending money on insulating the walls.

Other nouns in Irish

More everyday Irish nouns to learn next.

Heat insulation in Irish: frequently asked questions

What is the Irish for heat insulation?

The Irish for heat insulation is teasdíonadh (pronounced “TYAS-dee-uh-noo”). It’s a masculine noun.

How do you pronounce teasdíonadh in Irish?

Teasdíonadh is said like “TYAS-dee-uh-noo” (IPA /tʲasˠdʲiːənˠə/).

Does teasdíonadh have a plural?

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

Why does teasdíonadh change to theasdíonadh or dteasdíonadh?

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

What is the difference between teasdíonadh and insliú?

Teasdíonadh refers specifically to heat or thermal insulation, while insliú is a more general word for insulation, often used for electrical insulation.

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