HeyRua Get the app

Cetacean in Irish (Céiticeach): Meaning, Pronunciation, Usage

The Irish for cetacean is céiticeach, a masculine noun (plural céiticigh).
Updated October 2026Report a mistake

How to say “cetacean” in Irish

Irish:
céiticeach
English:
cetacean
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“KAY-tik-yokh”  /ˈceːtʲɪcəx/
Various forms
Plural:
céiticigh (cetaceans)
Genitive singular:
céiticigh, an chéiticigh (e.g. eireaball an chéiticigh, the tail of the cetacean)
Genitive plural:
céiticeach, na gcéiticeach (e.g. cosaint na gcéiticeach, the protection of the cetaceans)

What does “céiticeach” mean?

cetacean
A cetacean is a sea mammal of the order that includes whales, dolphins and porpoises.Also: whale, dolphin, porpoise, marine mammal.

“Céiticeach” with the article

The plural of cetacean in Irish is céiticigh. Here is céiticeach after the article (an t-alt), in the singular and the plural.

an céiticeach
the cetacean
No change after an
na céiticigh
the cetaceans
Plural: no change after na

“Céiticeach” in a sentence: Irish examples

Common Irish sentences using céiticeach, the Irish word for cetacean.

Is céiticeach é an míol mór.
The whale is a cetacean.
Chonaiceamar céiticigh amach ón gcósta inné.
We saw cetaceans off the coast yesterday.
Tá an céiticeach ag snámh in aice leis an mbád.
The cetacean is swimming near the boat.
Rinne sí staidéar ar iompar na gcéiticeach.
She studied the behaviour of cetaceans.
Is céiticeach beag í an deilf.
The dolphin is a small cetacean.
Bhí céiticeach marbh ar an trá ar maidin.
There was a dead cetacean on the beach this morning.
Caithfidh céiticigh teacht aníos chun análú.
Cetaceans must come to the surface to breathe.

Other nouns in Irish

More everyday Irish nouns to learn next.

Cetacean in Irish: frequently asked questions

What is the Irish for cetacean?

The Irish for cetacean is céiticeach (pronounced “KAY-tik-yokh”). It’s a masculine noun and the plural is céiticigh.

How do you pronounce céiticeach in Irish?

Céiticeach is said like “KAY-tik-yokh” (IPA /ˈceːtʲɪcəx/).

What is the plural of cetacean in Irish?

The plural of céiticeach is céiticigh; with the article, na céiticigh means “the cetaceans”. The genitive plural is céiticeach, as in cosaint na gcéiticeach (the protection of the cetaceans).

Why does céiticeach change to chéiticeach or gcéiticeach?

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

Is 'céiticeach' the everyday word for a whale?

No, 'céiticeach' is the scientific term for the whole group; a whale is usually 'míol mór' and a dolphin 'deilf'.

Learn Irish by
actually speaking it

Learn everyday Irish words like céiticeach through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen