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Fluorescence in Irish (Fluaraiseacht): Meaning, Pronunciation, Usage

The Irish for fluorescence is fluaraiseacht, a feminine noun.
Updated October 2026Report a mistake

How to say “fluorescence” in Irish

Irish:
fluaraiseacht
English:
fluorescence
Word type:
noun
Gender:
feminine
Pronunciation:
“FLOO-uh-rash-ukht”  /ˈfl̪ˠuəɾˠəʃəxt̪ˠ/
Various forms
Genitive singular:
fluaraiseachta, na fluaraiseachta (e.g. déine na fluaraiseachta, the intensity of the fluorescence)

What does “fluaraiseacht” mean?

fluorescence
The giving off of light by a substance when it absorbs radiation such as ultraviolet light.Also: fluorescent glow, luminescence.

“Fluaraiseacht” with the article

Here is fluaraiseacht after the article (an t-alt).

an fhluaraiseacht
the fluorescence
Lenition: f becomes fh after an (feminine noun)

“Fluaraiseacht” in a sentence: Irish examples

Common Irish sentences using fluaraiseacht, the Irish word for fluorescence.

Is cineál solais í an fhluaraiseacht.
Fluorescence is a kind of light.
Chonaiceamar fluaraiseacht ghlas faoin solas ultraivialait.
We saw a green fluorescence under the ultraviolet light.
Rinne an rang staidéar ar fhluaraiseacht inniu.
The class studied fluorescence today.
Míníonn an múinteoir cúis na fluaraiseachta.
The teacher explains the cause of fluorescence.
Tá fluaraiseacht láidir sa mhianra seo.
This mineral has strong fluorescence.
Úsáidtear fluaraiseacht i dtrialacha leighis.
Fluorescence is used in medical tests.
Thomhais an t-eolaí déine na fluaraiseachta.
The scientist measured the intensity of the fluorescence.

Other nouns in Irish

More everyday Irish nouns to learn next.

Fluorescence in Irish: frequently asked questions

What is the Irish for fluorescence?

The Irish for fluorescence is fluaraiseacht (pronounced “FLOO-uh-rash-ukht”). It’s a feminine noun.

How do you pronounce fluaraiseacht in Irish?

Fluaraiseacht is said like “FLOO-uh-rash-ukht” (IPA /ˈfl̪ˠuəɾˠəʃəxt̪ˠ/).

Does fluaraiseacht have a plural?

No plural form is given for fluaraiseacht in the standard. Many abstract and mass nouns in Irish have no plural.

Why does fluaraiseacht change to fhluaraiseacht or bhfluaraiseacht?

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

What is the difference between fluaraiseacht and fosfaraiseacht?

Fluaraiseacht (fluorescence) stops almost as soon as the light source is removed, while fosfaraiseacht (phosphorescence) continues to glow afterwards.

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