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Rarefaction in Irish (Éadlúthú): Meaning, Pronunciation, Usage

The Irish for rarefaction is éadlúthú, a masculine noun.
Updated October 2026Report a mistake

How to say “rarefaction” in Irish

Irish:
éadlúthú
English:
rarefaction
Word type:
noun (verbal noun)
Gender:
masculine
Pronunciation:
“AID-loo-hoo”  /ˈeːdˌl̪ˠuːhuː/
Various forms
Genitive singular:
éadlúthaithe, an éadlúthaithe (e.g. próiseas an éadlúthaithe, the process of rarefaction)

What does “éadlúthú” mean?

rarefaction
The verbal noun of éadlúthaigh: the act or process of making something less dense, such as a gas or air.Also: rarefying, making less dense, decompression.

“Éadlúthú” with the article

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

an t-éadlúthú
the rarefaction
Masculine nouns take t before a vowel after an

“Éadlúthú” in a sentence: Irish examples

Common Irish sentences using éadlúthú, the Irish word for rarefaction.

Is éard is éadlúthú ann ná dlús a laghdú.
Rarefaction means reducing density.
Tarlaíonn éadlúthú an aeir ar bharr sléibhe.
The air becomes rarefied at the top of a mountain.
Tá comhbhrú agus éadlúthú i dtonn fuaime.
A sound wave has compression and rarefaction.
Mhínigh an múinteoir an t-éadlúthú dúinn inniu.
The teacher explained rarefaction to us today.
Thaispeáin sí limistéar an éadlúthaithe ar an léaráid.
She showed the area of rarefaction on the diagram.
Bíonn brú íseal i gceantar an éadlúthaithe.
Pressure is low in the region of rarefaction.
Le linn an éadlúthaithe, scaipeann na móilíní.
During rarefaction, the molecules spread out.

Other nouns in Irish

More everyday Irish nouns to learn next.

Rarefaction in Irish: frequently asked questions

What is the Irish for rarefaction?

The Irish for rarefaction is éadlúthú (pronounced “AID-loo-hoo”). It’s a masculine noun.

How do you pronounce éadlúthú in Irish?

Éadlúthú is said like “AID-loo-hoo” (IPA /ˈeːdˌl̪ˠuːhuː/).

Does éadlúthú have a plural?

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

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

Irish nouns beginning with a vowel take a prefix after certain words: an t-éadlúthú (the rarefaction), a héadlúthú (her rarefaction), a n-éadlúthú (their rarefaction).

What is the opposite of éadlúthú?

The opposite is comhbhrú (compression) or dlúthú (condensing, making dense); the prefix éa- negates dlúthú.

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