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Oral cavity in Irish (Béalchuas): Meaning, Pronunciation, Usage

The Irish for oral cavity is béalchuas, a masculine noun (plural béalchuasa).
Updated October 2026Report a mistake

How to say “oral cavity” in Irish

Irish:
béalchuas
English:
oral cavity
Word type:
noun
Gender:
masculine
Pronunciation:
“BAYL-khoo-us”  /bʲeːlˠxuəsˠ/
Various forms
Plural:
béalchuasa (oral cavities)
Genitive singular:
béalchuais, an bhéalchuais (e.g. ailse an bhéalchuais, cancer of the oral cavity)
Genitive plural:
béalchuas, na mbéalchuas (e.g. íomhánna na mbéalchuas, the images of the oral cavities)

What does “béalchuas” mean?

oral cavity
The hollow space inside the mouth, behind the lips and teeth.Also: mouth cavity, buccal cavity, inside of the mouth.

“Béalchuas” with the article

The plural of oral cavity in Irish is béalchuasa. Here is béalchuas after the article (an t-alt), in the singular and the plural.

an béalchuas
the oral cavity
No change after an
na béalchuasa
the oral cavities
Plural: no change after na

“Béalchuas” in a sentence: Irish examples

Common Irish sentences using béalchuas, the Irish word for oral cavity.

Tá an teanga suite sa bhéalchuas.
The tongue is located in the oral cavity.
Scrúdaigh an fiaclóir an béalchuas go cúramach.
The dentist examined the oral cavity carefully.
Bhí cneá bheag i mo bhéalchuas.
I had a small sore in my mouth cavity.
Is cuid den chóras díleáite é an béalchuas.
The oral cavity is part of the digestive system.
Coinnigh sláinte an bhéalchuais go maith.
Keep the oral cavity healthy.
Tá béalchuas níos mó ag an ainmhí seo.
This animal has a larger oral cavity.
Rinneadh comparáid idir béalchuasa na n-othar.
The patients' oral cavities were compared.

Other nouns in Irish

More everyday Irish nouns to learn next.

Oral cavity in Irish: frequently asked questions

What is the Irish for oral cavity?

The Irish for oral cavity is béalchuas (pronounced “BAYL-khoo-us”). It’s a masculine noun and the plural is béalchuasa.

How do you pronounce béalchuas in Irish?

Béalchuas is said like “BAYL-khoo-us” (IPA /bʲeːlˠxuəsˠ/).

What is the plural of oral cavity in Irish?

The plural of béalchuas is béalchuasa; with the article, na béalchuasa means “the oral cavities”. The genitive plural is béalchuas, as in íomhánna na mbéalchuas (the images of the oral cavities).

Why does béalchuas change to bhéalchuas or mbéalchuas?

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

How is 'béalchuas' different from 'béal'?

'Béal' is the everyday word for mouth, while 'béalchuas' is the technical term for the cavity inside it, used in medicine and anatomy.

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