De or het urinelozing?

The correct Dutch article is:

de urinelozing

Rule Words ending in -ing: almost always de. See the rule

How to use urinelozing

the urinelozingde urinelozing
this urinelozingdeze urinelozing
that urinelozingdie urinelozing
our urinelozingonze urinelozing
your urinelozingjouw urinelozing
every urinelozingelke urinelozing
which urinelozing?welke urinelozing?
a big urinelozing / the big urinelozingeen grote urinelozing, de grote urinelozing