De or het oötheca?

The correct Dutch article is:

de oötheca

Meaning (Dutch) (dierkunde) eicapsule waarin enkele tientallen tot enkele honderden eitjes zitten

How to use oötheca

the oöthecade oötheca
this oöthecadeze oötheca
that oöthecadie oötheca
our oöthecaonze oötheca
your oöthecajouw oötheca
every oöthecaelke oötheca
which oötheca?welke oötheca?
a big oötheca / the big oöthecaeen grote oötheca, de grote oötheca

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).