triantánúil

Irish

Etymology

From triantán (“triangle”) +‎ -úil (adjectival suffix).

Adjective

triantánúil (genitive singular masculine triantánúil, genitive singular feminine triantánúla, plural triantánúla, comparative triantánúla)

1. trigonometric, trigonometrical

Declension

Declension of triantánúil

	singular		plural (m/f)
Positive	masculine	feminine	(strong noun)	(weak noun)
nominative	triantánúil	thriantánúil	triantánúla; thriantánúla2
vocative	thriantánúil		triantánúla
genitive		triantánúla	triantánúla	triantánúil
dative	triantánúil; thriantánúil1	thriantánúil	triantánúla; thriantánúla2
Comparative	níos triantánúla
Superlative	is triantánúla

¹ When the preceding noun is lenited and governed by the definite article.
² When the preceding noun ends in a slender consonant.

Related terms

• triantánacht (“trigonometry”)

Mutation

Mutated forms of triantánúil

radical	lenition	eclipsis
triantánúil	thriantánúil	dtriantánúil

Note: Certain mutated forms of some words can never occur in standard Modern Irish.
All possible mutated forms are displayed for convenience.

Further reading

• Ó Dónaill, Niall (1977) “triantánúil”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN