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Oxidation in Irish (Ocsaídiú): Meaning, Pronunciation, Usage

The Irish for oxidation is ocsaídiú, a masculine noun. Ag ocsaídiú is oxidizing, from the verb ocsaídigh.
Updated October 2026Report a mistake

How to say “oxidation” in Irish

Irish:
ocsaídiú
English:
oxidation
Word type:
noun (verbal noun)
Verbal noun of:
ocsaídigh, to oxidize (ag ocsaídiú, oxidizing)
Gender:
masculine
Pronunciation:
“OK-see-dyoo”  /ˈɔksiːdʲuː/
Various forms
Genitive singular:
ocsaídithe, an ocsaídithe (e.g. próiseas an ocsaídithe, the process of oxidation)

What does “ocsaídiú” mean?

oxidation
The chemical process in which a substance combines with oxygen or loses electrons; it is the verbal noun of the verb ocsaídigh.Also: oxidising, oxidizing, rusting.

“Ocsaídiú” as a verbal noun

After ag, ocsaídiú means oxidizing: it is the verbal noun of the verb ocsaídigh (to oxidize). A noun that follows it goes into the genitive.

agat
+
ocsaídiúverbal noun
=
ag ocsaídiúoxidizing

“Ocsaídiú” with the article

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

an t-ocsaídiú
the oxidation
Masculine nouns take t before a vowel after an

“Ocsaídiú” in a sentence: Irish examples

Common Irish sentences using ocsaídiú, the Irish word for oxidation.

Is cineál ocsaídithe í meirg ar iarann.
Rust on iron is a kind of oxidation.
Tarlaíonn ocsaídiú nuair a mheascann ocsaigin le miotal.
Oxidation happens when oxygen combines with a metal.
Mhínigh an múinteoir an t-ocsaídiú dúinn inniu.
The teacher explained oxidation to us today.
Cuireann péint cosc ar ocsaídiú an chairr.
Paint prevents the car from oxidising.
Bíonn teas i gceist san ocsaídiú seo.
Heat is involved in this oxidation.
Rinneamar staidéar ar ráta an ocsaídithe sa tsaotharlann.
We studied the rate of oxidation in the lab.
Is ocsaídiú tapa é an dó.
Burning is rapid oxidation.

Other nouns in Irish

More everyday Irish nouns to learn next.

Oxidation in Irish: frequently asked questions

What is the Irish for oxidation?

The Irish for oxidation is ocsaídiú (pronounced “OK-see-dyoo”). It’s a masculine noun.

How do you pronounce ocsaídiú in Irish?

Ocsaídiú is said like “OK-see-dyoo” (IPA /ˈɔksiːdʲuː/).

Does ocsaídiú have a plural?

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

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

Irish nouns beginning with a vowel take a prefix after certain words: an t-ocsaídiú (the oxidation), a hocsaídiú (her oxidation), a n-ocsaídiú (their oxidation).

What is the opposite of ocsaídiú in chemistry?

The opposite process, reduction, is called laghdú, and together they are spoken of as ocsaídiú agus laghdú.

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