HeyRuaHow to say “half-life” in Irish
- Irish:
- leathré
- English:
- half-life
- Word type:
- noun
- Gender:
- feminine, fourth declension
- Pronunciation:
- “LYAH-ray” /ˈlʲahˌɾˠeː/
Various forms
- Plural:
- leathréanna (half-lives)
- Genitive singular:
- leathré, na leathré (e.g. fad na leathré, length of the half-life)
- Genitive plural:
- leathréanna, na leathréanna (e.g. fad na leathréanna, the length of the half-lives)
What does “leathré” mean?
- half-life
- The time it takes for half of the atoms of a radioactive substance, or half of a quantity of a drug, to decay or be removed.Also: radioactive half-life, decay period.
“Leathré” with the article
The plural of half-life in Irish is leathréanna. Here is leathré after the article (an t-alt), in the singular and the plural.
an leathré
the half-life
No change after an
na leathréanna
the half-lives
Plural: no change after na
“Leathré” in a sentence: Irish examples
Common Irish sentences using leathré, the Irish word for half-life.
Tá leathré an-ghearr ag an iseatóp seo.
This isotope has a very short half-life.
Ríomh an leathré ón ngraf.
Calculate the half-life from the graph.
Is ionann an leathré agus cúig mhilliún bliain.
The half-life is five million years.
Bhí ceist faoin leathré ar an scrúdú.
There was a question about half-life in the exam.
Tá leathréanna difriúla ag na hiseatóip éagsúla.
The different isotopes have different half-lives.
Thomhais na heolaithe fad na leathré go cruinn.
The scientists measured the length of the half-life precisely.
Tar éis leathré amháin, fanann leath an ábhair.
After one half-life, half of the material remains.
Other nouns in Irish
More everyday Irish nouns to learn next.
Half-life in Irish: frequently asked questions
What is the Irish for half-life?
The Irish for half-life is leathré (pronounced “LYAH-ray”). It’s a feminine noun and the plural is leathréanna.
How do you pronounce leathré in Irish?
Leathré is said like “LYAH-ray” (IPA /ˈlʲahˌɾˠeː/).
What is the plural of half-life in Irish?
The plural of leathré is leathréanna; with the article, na leathréanna means “the half-lives”. The genitive plural is leathréanna, as in fad na leathréanna (the length of the half-lives).
How is 'leathré' formed?
It combines 'leath' (half) with 'ré' (period, era), so it literally means 'half-period'. It is the standard term for half-life in physics and chemistry.
