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Pyrolysis in Irish (Pirealú): Meaning, Pronunciation, Usage

The Irish for pyrolysis is pirealú, a masculine noun.
Updated October 2026Report a mistake

How to say “pyrolysis” in Irish

Irish:
pirealú
English:
pyrolysis
Word type:
noun
Gender:
masculine
Pronunciation:
“PIR-uh-loo”  /ˈpʲɪɾʲəl̪ˠuː/
Various forms
Genitive singular:
pirealaithe, an phirealaithe (e.g. próiseas an phirealaithe, the process of pyrolysis)

What does “pirealú” mean?

pyrolysis
The chemical breakdown of a substance by heating it to a very high temperature, usually without oxygen.Also: thermal decomposition, heat decomposition.

“Pirealú” with the article

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

an pirealú
the pyrolysis
No change after an

“Pirealú” in a sentence: Irish examples

Common Irish sentences using pirealú, the Irish word for pyrolysis.

Is próiseas ceimiceach é pirealú.
Pyrolysis is a chemical process.
Tarlaíonn an pirealú nuair a théitear adhmad gan ocsaigin.
Pyrolysis happens when wood is heated without oxygen.
D'fhoghlaimíomar faoi phirealú sa rang ceimice.
We learned about pyrolysis in chemistry class.
Táirgtear gualach trí phirealú adhmaid.
Charcoal is produced by the pyrolysis of wood.
Bhí teocht an phirealaithe an-ard.
The pyrolysis temperature was very high.
Úsáidtear pirealú chun plaisteach a athchúrsáil.
Pyrolysis is used to recycle plastic.
Mhínigh an léachtóir torthaí an phirealaithe.
The lecturer explained the results of the pyrolysis.

Other nouns in Irish

More everyday Irish nouns to learn next.

Pyrolysis in Irish: frequently asked questions

What is the Irish for pyrolysis?

The Irish for pyrolysis is pirealú (pronounced “PIR-uh-loo”). It’s a masculine noun.

How do you pronounce pirealú in Irish?

Pirealú is said like “PIR-uh-loo” (IPA /ˈpʲɪɾʲəl̪ˠuː/).

Does pirealú have a plural?

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

Why does pirealú change to phirealú or bpirealú?

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

Is pirealú the same as burning (dó)?

No. Dó needs oxygen, whereas pirealú is breaking a substance down by heat in the absence of oxygen.

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