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Isotope in Irish (Iseatóp): Meaning, Pronunciation, Usage

The Irish for isotope is iseatóp, a masculine noun (plural iseatóip).
Updated October 2026Report a mistake

How to say “isotope” in Irish

Irish:
iseatóp
English:
isotope
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“ISH-uh-tohp”  /ˈɪʃət̪ˠoːpˠ/
Various forms
Plural:
iseatóip (isotopes)
Genitive singular:
iseatóip, an iseatóip (e.g. leathré an iseatóip, the half-life of the isotope)
Genitive plural:
iseatóp, na n-iseatóp (e.g. úsáid na n-iseatóp, the use of the isotopes)

What does “iseatóp” mean?

isotope
One of two or more forms of a chemical element that have the same number of protons but a different number of neutrons.Also: radioisotope, atomic variant.

“Iseatóp” with the article

The plural of isotope in Irish is iseatóip. Here is iseatóp after the article (an t-alt), in the singular and the plural.

an t-iseatóp
the isotope
Masculine nouns take t before a vowel after an
na hiseatóip
the isotopes
Plural: na adds h before a vowel

“Iseatóp” in a sentence: Irish examples

Common Irish sentences using iseatóp, the Irish word for isotope.

Is iseatóp de charbón é carbón-14.
Carbon-14 is an isotope of carbon.
Tá an t-iseatóp seo radaighníomhach.
This isotope is radioactive.
Tá iseatóip éagsúla ag an hidrigin.
Hydrogen has various isotopes.
Thomhais siad leathré an iseatóip go cúramach.
They measured the half-life of the isotope carefully.
Úsáidtear iseatóip san ospidéal chun galair a aimsiú.
Isotopes are used in the hospital to detect diseases.
D'fhoghlaimíomar faoi iseatóip sa rang ceimice.
We learned about isotopes in chemistry class.
Bíonn líon difriúil neodrón i ngach iseatóp.
Each isotope has a different number of neutrons.

Other nouns in Irish

More everyday Irish nouns to learn next.

Isotope in Irish: frequently asked questions

What is the Irish for isotope?

The Irish for isotope is iseatóp (pronounced “ISH-uh-tohp”). It’s a masculine noun and the plural is iseatóip.

How do you pronounce iseatóp in Irish?

Iseatóp is said like “ISH-uh-tohp” (IPA /ˈɪʃət̪ˠoːpˠ/).

What is the plural of isotope in Irish?

The plural of iseatóp is iseatóip; with the article, na hiseatóip means “the isotopes”. The genitive plural is iseatóp, as in úsáid na n-iseatóp (the use of the isotopes).

Why does iseatóp sometimes have a t or h in front of it?

Irish nouns beginning with a vowel take a prefix after certain words: an t-iseatóp (the isotope), a hiseatóp (her isotope), a n-iseatóp (their isotope), na hiseatóip (the isotopes).

How do you say 'radioactive isotope' in Irish?

The usual term is 'iseatóp radaighníomhach', with the adjective following the noun as normal in Irish.

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