De or het pericardium?

The correct Dutch article is:

het pericardium

Rule Words ending in -um and -ium: usually het. See the rule
Meaning (Dutch) (anatomie) hartzakje

How to use pericardium

the pericardiumhet pericardium
this pericardiumdit pericardium
that pericardiumdat pericardium
our pericardiumons pericardium
your pericardiumjouw pericardium
every pericardiumelk pericardium
which pericardium?welk pericardium?
a big pericardium / the big pericardiumeen groot pericardium, het grote pericardium

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