De or het wondgenezing?

The correct Dutch article is:

de wondgenezing

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

How to use wondgenezing

the wondgenezingde wondgenezing
this wondgenezingdeze wondgenezing
that wondgenezingdie wondgenezing
our wondgenezingonze wondgenezing
your wondgenezingjouw wondgenezing
every wondgenezingelke wondgenezing
which wondgenezing?welke wondgenezing?
a big wondgenezing / the big wondgenezingeen grote wondgenezing, de grote wondgenezing