HeyRua Get the app

Prosthesis in Irish (Próistéis): Meaning, Pronunciation, Usage

‘próistéis’ also means: prothesis

The Irish for prosthesis is próistéis, a feminine noun (plural próistéisí).
Updated October 2026Report a mistake

How to say “prosthesis” in Irish

Irish:
próistéis
English:
prosthesis, prothesis
Word type:
noun
Gender:
feminine, second declension
Pronunciation:
“PRAWSH-taysh”  /ˈpɾˠoːʃtʲeːʃ/
Various forms
Plural:
próistéisí (prostheses)
Genitive singular:
próistéise, na próistéise (e.g. feistiú na próistéise, the fitting of the prosthesis)
Genitive plural:
próistéisí, na bpróistéisí (e.g. déantús na bpróistéisí, the manufacture of prostheses)

What does “próistéis” mean?

“Próistéis” has two alternative meanings. The most common comes first.

prosthesis
An artificial body part, such as a limb, fitted to replace a missing one.Also: artificial limb, prosthetic.
1 other meaning: prothesis
2prothesis
In grammar, the addition of a sound or letter at the start of a word.Also: prosthesis (linguistics).

“Próistéis” with the article

The plural of prosthesis in Irish is próistéisí. Here is próistéis after the article (an t-alt), in the singular and the plural.

an phróistéis
the prosthesis
Lenition: p becomes ph after an (feminine noun)
na próistéisí
the prostheses
Plural: no change after na

“Próistéis” in a sentence: Irish examples

Common Irish sentences using próistéis, the Irish word for prosthesis.

Tá próistéis nua ar a chos aige.
He has a new prosthesis on his leg.
Cuireadh an phróistéis air tar éis na timpiste.
The prosthesis was fitted after the accident.
Bhí sí ag foghlaim siúl leis an bpróistéis.
She was learning to walk with the prosthesis.
Déanann an comhlacht sin próistéisí ardchaighdeáin.
That company makes high-quality prostheses.
Tá mo phróistéis an-chompordach anois.
My prosthesis is very comfortable now.
Bhí fadhb le méid na próistéise.
There was a problem with the size of the prosthesis.
Is próistéis é an 't' in 'an t-uisce'.
The 't' in 'an t-uisce' is a prothesis.

Other nouns in Irish

More everyday Irish nouns to learn next.

Prosthesis in Irish: frequently asked questions

What is the Irish for prosthesis?

The Irish for prosthesis is próistéis (pronounced “PRAWSH-taysh”). It’s a feminine noun and the plural is próistéisí. Depending on context it can also mean prothesis.

How do you pronounce próistéis in Irish?

Próistéis is said like “PRAWSH-taysh” (IPA /ˈpɾˠoːʃtʲeːʃ/).

What is the plural of prosthesis in Irish?

The plural of próistéis is próistéisí; with the article, na próistéisí means “the prostheses”. The genitive plural is próistéisí, as in déantús na bpróistéisí (the manufacture of prostheses).

Does próistéis have more than one meaning?

Yes. Próistéis can mean prosthesis or prothesis, depending on context; the first is the most common.

Why does próistéis change to phróistéis or bpróistéis?

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

Is 'próistéis' used for both medicine and grammar?

Yes, 'próistéis' covers both an artificial body part and the grammatical addition of a sound, like the prefixed t- in 'an t-éan'.

Learn Irish by
actually speaking it

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

7-day free trial. Cancel anytime.

The HeyRua app home screen