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Periodicity in Irish (Tréimhsiúlacht): Meaning, Pronunciation, Usage

The Irish for periodicity is tréimhsiúlacht, a feminine noun.
Updated October 2026Report a mistake

How to say “periodicity” in Irish

Irish:
tréimhsiúlacht
English:
periodicity
Word type:
noun
Gender:
feminine
Pronunciation:
“TRAYV-shoo-lukht”  /ˈtɾʲeːvʲʃuːl̪ˠəxt̪ˠ/
Various forms
Genitive singular:
tréimhsiúlachta, na tréimhsiúlachta (e.g. anailís na tréimhsiúlachta, the analysis of the periodicity)

What does “tréimhsiúlacht” mean?

periodicity
The quality of happening or recurring at regular intervals, as in a repeating cycle or periodic function.Also: regular recurrence, cyclicity.

“Tréimhsiúlacht” with the article

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

an tréimhsiúlacht
the periodicity
No change: d and t are not lenited after an

“Tréimhsiúlacht” in a sentence: Irish examples

Common Irish sentences using tréimhsiúlacht, the Irish word for periodicity.

Tá tréimhsiúlacht shoiléir sna sonraí seo.
There is clear periodicity in this data.
Míníonn an múinteoir tréimhsiúlacht na n-eilimintí.
The teacher explains the periodicity of the elements.
Is sampla de thréimhsiúlacht í an taoide.
The tide is an example of periodicity.
Rinneamar staidéar ar an tréimhsiúlacht sa rang ceimice.
We studied periodicity in chemistry class.
Tá tréimhsiúlacht ag baint leis an bhfeidhm sin.
That function has periodicity.
Thug sí faoi deara tréimhsiúlacht an phatrúin.
She noticed the periodicity of the pattern.
Is tábhachtach an tréimhsiúlacht sa tábla peiriadach.
Periodicity is important in the periodic table.

Other nouns in Irish

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Periodicity in Irish: frequently asked questions

What is the Irish for periodicity?

The Irish for periodicity is tréimhsiúlacht (pronounced “TRAYV-shoo-lukht”). It’s a feminine noun.

How do you pronounce tréimhsiúlacht in Irish?

Tréimhsiúlacht is said like “TRAYV-shoo-lukht” (IPA /ˈtɾʲeːvʲʃuːl̪ˠəxt̪ˠ/).

Does tréimhsiúlacht have a plural?

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

Why does tréimhsiúlacht change to thréimhsiúlacht or dtréimhsiúlacht?

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

How is 'tréimhsiúlacht' related to 'tréimhse'?

'Tréimhse' means a period of time; the adjective 'tréimhsiúil' means periodic, and 'tréimhsiúlacht' is the abstract noun, periodicity.

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