De or het hygrologie?

The correct Dutch article is:

de hygrologie

Rule Words ending in -logie: always de. See the rule
Meaning (Dutch) leer van de luchtvochtigheid

How to use hygrologie

the hygrologiede hygrologie
this hygrologiedeze hygrologie
that hygrologiedie hygrologie
our hygrologieonze hygrologie
your hygrologiejouw hygrologie
every hygrologieelke hygrologie
which hygrologie?welke hygrologie?
a big hygrologie / the big hygrologieeen grote hygrologie, de grote hygrologie

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