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Definition 2025

aildéad

aildéad

Irish

Noun

aildéad m ‎(genitive singular aildéid, nominative plural aildéid)

(organic chemistry) aldehyde

Declension

Declension of aildéad

First declension

Bare forms:

Case	Singular	Plural
Nominative	aildéad	aildéid
Vocative	a aildéid	a aildéada
Genitive	aildéid	aildéad
Dative	aildéad	aildéid

Forms with the definite article:

Case	Singular	Plural
Nominative	an t-aildéad	na haildéid
Genitive	an aildéid	na n-aildéad
Dative	leis an aildéad don aildéad	leis na haildéid

Derived terms

aicéataildéad ‎(“acetaldehyde”)

Mutation

Irish mutation
Radical	Eclipsis	with h-prothesis	with t-prothesis
aildéad	n-aildéad	haildéad	unchanged
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

References

"aildéad" in Foclóir Gaeilge-Béarla, An Gúm, 1977, by Niall Ó Dónaill.