heliportene is the masculine plural definite of heliport.

heliportN

Kven

heliporttiN

Norwegian Bokmål – Kvendict-nob-fkv/src/N_nobfkv.xml:24582Edit on GitHub Suggest

Case	Sg	Pl
Indef	heliport	heliporter
Def	heliporten	heliportene