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Definition 2025

tiach

tiach

Irish

Noun

tiach f ‎(genitive singular téiche, nominative plural tiacha)

(microbiology) theca

Declension

Declension of tiach

Second declension

Bare forms

Case	Singular	Plural
Nominative	tiach	tiacha
Vocative	a thiach	a thiacha
Genitive	téiche	tiach
Dative	tiach	tiacha

Forms with the definite article

Case	Singular	Plural
Nominative	an tiach	na tiacha
Genitive	na téiche	na dtiach
Dative	leis an tiach don tiach	leis na tiacha

Derived terms

hipithiach

Mutation

Irish mutation
Radical	Lenition	Eclipsis
tiach	thiach	dtiach
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.