De or het hydrostatica?

The correct Dutch article is:

de hydrostatica

Rule Words ending in -ica: usually de. See the rule
Meaning (Dutch) (natuurkunde) leer van het evenwicht van de vloeistoffen

How to use hydrostatica

the hydrostaticade hydrostatica
this hydrostaticadeze hydrostatica
that hydrostaticadie hydrostatica
our hydrostaticaonze hydrostatica
your hydrostaticajouw hydrostatica
every hydrostaticaelke hydrostatica
which hydrostatica?welke hydrostatica?
a big hydrostatica / the big hydrostaticaeen grote hydrostatica, de grote hydrostatica

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