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Proton in Irish (Prótón): Meaning, Pronunciation, Usage

The Irish for proton is prótón, a masculine noun (plural prótóin).
Updated October 2026Report a mistake

How to say “proton” in Irish

Irish:
prótón
English:
proton
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“PROH-tohn”  /ˈpˠɾˠoːt̪ˠoːnˠ/
Various forms
Plural:
prótóin (protons)
Genitive singular:
prótóin, an phrótóin (e.g. lucht an phrótóin, the charge of the proton)
Genitive plural:
prótón, na bprótón (e.g. líon na bprótón, the number of protons)

What does “prótón” mean?

proton
A particle with a positive electric charge found in the nucleus of every atom.Also: positive particle, subatomic particle.

“Prótón” with the article

The plural of proton in Irish is prótóin. Here is prótón after the article (an t-alt), in the singular and the plural.

an prótón
the proton
No change after an
na prótóin
the protons
Plural: no change after na

“Prótón” in a sentence: Irish examples

Common Irish sentences using prótón, the Irish word for proton.

Tá lucht dearfach ar phrótón.
A proton has a positive charge.
Tá an prótón i núicléas an adaimh.
The proton is in the nucleus of the atom.
Tá prótóin agus neodróin sa núicléas.
There are protons and neutrons in the nucleus.
Is ionann líon na bprótón agus an uimhir adamhach.
The number of protons equals the atomic number.
Tá prótón amháin i núicléas na hidrigine.
There is one proton in the hydrogen nucleus.
Tá mais an phrótóin níos mó ná mais an leictreoin.
The mass of the proton is greater than the mass of the electron.
D'fhoghlaimíomar faoi phrótóin sa rang eolaíochta inniu.
We learned about protons in science class today.

Other nouns in Irish

More everyday Irish nouns to learn next.

Proton in Irish: frequently asked questions

What is the Irish for proton?

The Irish for proton is prótón (pronounced “PROH-tohn”). It’s a masculine noun and the plural is prótóin.

How do you pronounce prótón in Irish?

Prótón is said like “PROH-tohn” (IPA /ˈpˠɾˠoːt̪ˠoːnˠ/).

What is the plural of proton in Irish?

The plural of prótón is prótóin; with the article, na prótóin means “the protons”. The genitive plural is prótón, as in líon na bprótón (the number of protons).

Why does prótón change to phrótón or bprótón?

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

What are the other particles of the atom called in Irish?

Alongside prótón there is neodrón (neutron) and leictreon (electron), all found in an t-adamh (the atom).

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