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Casein in Irish (Cáiséin): Meaning, Pronunciation, Usage

The Irish for casein is cáiséin, a feminine noun.
Updated October 2026Report a mistake

How to say “casein” in Irish

Irish:
cáiséin
English:
casein
Word type:
noun
Gender:
feminine
Pronunciation:
“KAW-shayn”  /ˈkɑːʃeːnʲ/
Various forms
Genitive singular:
cáiséine, na cáiséine (e.g. leibhéal cáiséine, level of casein)

What does “cáiséin” mean?

casein
Casein is the main protein found in milk, used in making cheese and some glues and paints.Also: milk protein, caseinogen.

“Cáiséin” with the article

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

an cháiséin
the casein
Lenition: c becomes ch after an (feminine noun)

“Cáiséin” in a sentence: Irish examples

Common Irish sentences using cáiséin, the Irish word for casein.

Is próitéin é cáiséin a fhaightear i mbainne.
Casein is a protein found in milk.
Tá an cháiséin riachtanach chun cáis a dhéanamh.
Casein is essential for making cheese.
Tá ailléirge aige le cáiséin.
He is allergic to casein.
Bíonn go leor cáiséine i mbainne bó.
Cow's milk contains a lot of casein.
Úsáidtear cáiséin i ngliú agus i bpéint.
Casein is used in glue and paint.
Níl aon cháiséin sa deoch seo.
There is no casein in this drink.
Rinne na mic léinn staidéar ar an gcáiséin.
The students studied casein.

Other nouns in Irish

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Casein in Irish: frequently asked questions

What is the Irish for casein?

The Irish for casein is cáiséin (pronounced “KAW-shayn”). It’s a feminine noun.

How do you pronounce cáiséin in Irish?

Cáiséin is said like “KAW-shayn” (IPA /ˈkɑːʃeːnʲ/).

Does cáiséin have a plural?

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

Why does cáiséin change to cháiséin or gcáiséin?

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

Is cáiséin related to the word cáis?

The words look alike and both connect to cheese: cáiséin is the milk protein, while cáis is cheese itself.

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