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Radiator in Irish (Radaitheoir): Meaning, Pronunciation, Usage

The Irish for radiator is radaitheoir, a masculine noun (plural radaitheoirí).
Updated October 2026Report a mistake

How to say “radiator” in Irish

Irish:
radaitheoir
English:
radiator
Word type:
noun
Gender:
masculine, third declension
Pronunciation:
“RAD-ee-hore”  /ˈrˠadˠiˌhoːɾʲ/
Various forms
Plural:
radaitheoirí (radiators)
Genitive singular:
radaitheora, an radaitheora (e.g. teas an radaitheora, the heat of the radiator)
Genitive plural:
radaitheoirí, na radaitheoirí (e.g. suiteáil na radaitheoirí, the installation of the radiators)

What does “radaitheoir” mean?

“Radaitheoir” has two alternative meanings. The most common comes first.

radiator
A device, usually metal, that gives out heat to warm a room, often filled with hot water.Also: heater, central heating radiator.
1 other meaning:
2radiator
The part of a car engine that cools it by passing water or coolant through thin metal tubes.Also: car radiator, engine radiator.

Other Irish words for radiator: téitheoir (heater), teasaire (heater)

“Radaitheoir” with the article

The plural of radiator in Irish is radaitheoirí. Here is radaitheoir after the article (an t-alt), in the singular and the plural.

an radaitheoir
the radiator
No change after an
na radaitheoirí
the radiators
Plural: no change after na

“Radaitheoir” in a sentence: Irish examples

Common Irish sentences using radaitheoir, the Irish word for radiator.

Tá an radaitheoir fuar arís ar maidin.
The radiator is cold again this morning.
Cuir do stocaí ar an radaitheoir le triomú.
Put your socks on the radiator to dry.
Tá uisce ag sileadh as an radaitheoir sa chistin.
Water is leaking from the radiator in the kitchen.
Chas sé suas an radaitheoir.
He turned up the radiator.
Cheannaíomar radaitheoirí nua don teach.
We bought new radiators for the house.
Níl mo radaitheoir ag obair ar chor ar bith.
My radiator isn't working at all.
Tá poll i radaitheoir an chairr.
There is a hole in the car's radiator.

Other nouns in Irish

More everyday Irish nouns to learn next.

Radiator in Irish: frequently asked questions

What is the Irish for radiator?

The Irish for radiator is radaitheoir (pronounced “RAD-ee-hore”). It’s a masculine noun and the plural is radaitheoirí.

How do you pronounce radaitheoir in Irish?

Radaitheoir is said like “RAD-ee-hore” (IPA /ˈrˠadˠiˌhoːɾʲ/).

What is the plural of radiator in Irish?

The plural of radaitheoir is radaitheoirí; with the article, na radaitheoirí means “the radiators”. The genitive plural is radaitheoirí, as in suiteáil na radaitheoirí (the installation of the radiators).

What is the difference between 'radaitheoir' and 'téitheoir'?

A 'radaitheoir' is a fixed radiator, usually part of central heating, while a 'téitheoir' is any heater, such as a portable electric one.

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