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Cortex in Irish (Coirtéis): Meaning, Pronunciation, Usage

The Irish for cortex is coirtéis, a feminine noun (plural coirtéisí).
Updated October 2026Report a mistake

How to say “cortex” in Irish

Irish:
coirtéis
English:
cortex
Word type:
noun
Gender:
feminine
Pronunciation:
“KOR-tchaysh”  /ˈkoɾʲtʲeːʃ/
Various forms
Plural:
coirtéisí (cortices)
Genitive singular:
coirtéise, na coirtéise (e.g. cealla na coirtéise, cells of the cortex)
Genitive plural:
coirtéisí, na gcoirtéisí (e.g. struchtúr na gcoirtéisí, the structure of the cortices)

What does “coirtéis” mean?

cortex
The outer layer of an organ or structure, especially the outer layer of the brain or of the kidney.Also: cerebral cortex, outer layer, bark.

“Coirtéis” with the article

The plural of cortex in Irish is coirtéisí. Here is coirtéis after the article (an t-alt), in the singular and the plural.

an choirtéis
the cortex
Lenition: c becomes ch after an (feminine noun)
na coirtéisí
the cortices
Plural: no change after na

“Coirtéis” in a sentence: Irish examples

Common Irish sentences using coirtéis, the Irish word for cortex.

Is cuid den inchinn í an choirtéis.
The cortex is part of the brain.
Tá coirtéis ar an duán freisin.
The kidney has a cortex too.
Rinne siad staidéar ar chealla na coirtéise.
They studied the cells of the cortex.
Bhí damáiste beag sa choirtéis.
There was slight damage in the cortex.
Tá na coirtéisí seo an-tanaí.
These cortices are very thin.
Smaoinímid leis an gcoirtéis den chuid is mó.
We think mostly with the cortex.
Taispeánann an scanadh gníomhaíocht i gcoirtéis an othair.
The scan shows activity in the patient's cortex.

Other nouns in Irish

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Cortex in Irish: frequently asked questions

What is the Irish for cortex?

The Irish for cortex is coirtéis (pronounced “KOR-tchaysh”). It’s a feminine noun and the plural is coirtéisí.

How do you pronounce coirtéis in Irish?

Coirtéis is said like “KOR-tchaysh” (IPA /ˈkoɾʲtʲeːʃ/).

What is the plural of cortex in Irish?

The plural of coirtéis is coirtéisí; with the article, na coirtéisí means “the cortices”. The genitive plural is coirtéisí, as in struchtúr na gcoirtéisí (the structure of the cortices).

Why does coirtéis change to choirtéis or gcoirtéis?

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

Is 'coirtéis' the same as 'cortex' in English?

Yes, 'coirtéis' is the scientific term for cortex, as in the outer layer of the brain or kidney; it is used mainly in biology and medicine.

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