De or het vinologie?

The correct Dutch article is:

de vinologie

Rule Words ending in -logie: always de. See the rule
Meaning (Dutch) de biochemische aspecten van wijnbereiding.

How to use vinologie

the vinologiede vinologie
this vinologiedeze vinologie
that vinologiedie vinologie
our vinologieonze vinologie
your vinologiejouw vinologie
every vinologieelke vinologie
which vinologie?welke vinologie?
a big vinologie / the big vinologieeen grote vinologie, de grote vinologie

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