triantán

See also: triantan

Irish

triantán

Etymology

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Pronunciation

(Munster) IPA^(key): /tʲɾʲiən̪ˠˈt̪ˠɑːn̪ˠ/
(Connacht) IPA^(key): /ˈtʲɾʲiən̪ˠt̪ˠɑːnˠ/
(Ulster) IPA^(key): /ˈtʲɾʲiən̪ˠˈt̪ˠanˠ/

Noun

triantán m (genitive singular triantáin, nominative plural triantáin)

(geometry, music, cue sports) triangle
(electricity) delta
triangular section, wedge (of cake)

Declension

Declension of triantán

First declension

Bare forms:

Case	Singular	Plural
Nominative	triantán	triantáin
Vocative	a thriantáin	a thriantána
Genitive	triantáin	triantán
Dative	triantán	triantáin

Forms with the definite article:

Case	Singular	Plural
Nominative	an triantán	na triantáin
Genitive	an triantáin	na dtriantán
Dative	leis an triantán don triantán	leis na triantáin

Derived terms

triantán comhchosach (“isosceles triangle”)
triantán dronuilleach (“right-angled triangle”)
triantán scailéanach, triantán corrshleasach (“scalene triangle”)
triantán suthain (“love triangle”)
triantánach (“triangular; deltoid”, adjective)
triantánacht (“trigonometry”)
triantánaigh (“triangulate”, transitive verb)
triantánúil (“trigonometrical”, adjective)

Mutation

Irish mutation
Radical	Lenition	Eclipsis
triantán	thriantán	dtriantán
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

Further reading

Ó Dónaill, Niall (1977) “triantán”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN
“triangle”, in New English-Irish Dictionary, Foras na Gaeilge, 2013–2024

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