De or het druppelsmering?

The correct Dutch article is:

de druppelsmering

Rule Words ending in -ing: almost always de. See the rule
Meaning (Dutch) (motortechniek) smering door regelmatig olie te druppelen

How to use druppelsmering

the druppelsmeringde druppelsmering
this druppelsmeringdeze druppelsmering
that druppelsmeringdie druppelsmering
our druppelsmeringonze druppelsmering
your druppelsmeringjouw druppelsmering
every druppelsmeringelke druppelsmering
which druppelsmering?welke druppelsmering?
a big druppelsmering / the big druppelsmeringeen grote druppelsmering, de grote druppelsmering

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