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Tangency in Irish (Tadhlaíocht): Meaning, Pronunciation, Usage

The Irish for tangency is tadhlaíocht, a feminine noun.
Updated October 2026Report a mistake

How to say “tangency” in Irish

Irish:
tadhlaíocht
English:
tangency
Word type:
noun
Gender:
feminine
Pronunciation:
“TYE-lee-ukht”  /ˈt̪ˠəilʲiːəxt̪ˠ/
Various forms
Genitive singular:
tadhlaíochta, na tadhlaíochta (e.g. pointe tadhlaíochta, point of tangency)

What does “tadhlaíocht” mean?

tangency
In geometry, the state or quality of touching a curve or surface at a single point without crossing it.Also: tangentiality, being tangent.

“Tadhlaíocht” with the article

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

an tadhlaíocht
the tangency
No change: d and t are not lenited after an

“Tadhlaíocht” in a sentence: Irish examples

Common Irish sentences using tadhlaíocht, the Irish word for tangency.

Is coincheap geoiméadrach í an tadhlaíocht.
Tangency is a geometric concept.
Marcáil pointe tadhlaíochta an chiorcail ar an léaráid.
Mark the circle's point of tangency on the diagram.
Chruthaigh an múinteoir tadhlaíocht na líne leis an gciorcal.
The teacher proved the line's tangency to the circle.
Tá ceist faoi thadhlaíocht ar an scrúdú inniu.
There's a question about tangency on the exam today.
Foghlaimímid faoin tadhlaíocht sa cheimseata.
We learn about tangency in geometry.
Tá coinníoll tadhlaíochta riachtanach anseo.
A condition of tangency is needed here.
Ní thuigim an tadhlaíocht go fóill.
I still don't understand tangency.

Other nouns in Irish

More everyday Irish nouns to learn next.

Tangency in Irish: frequently asked questions

What is the Irish for tangency?

The Irish for tangency is tadhlaíocht (pronounced “TYE-lee-ukht”). It’s a feminine noun.

How do you pronounce tadhlaíocht in Irish?

Tadhlaíocht is said like “TYE-lee-ukht” (IPA /ˈt̪ˠəilʲiːəxt̪ˠ/).

Does tadhlaíocht have a plural?

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

Why does tadhlaíocht change to thadhlaíocht or dtadhlaíocht?

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

How is tadhlaíocht related to tadhlaí?

Tadhlaí means a tangent (the line itself), while tadhlaíocht is the abstract state of being tangent, tangency.

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