plasten is the masculine singular definite of plast.

plastN

Kven

plastikkiN

Norwegian Bokmål – Kvendict-nob-fkv/src/N_nobfkv.xml:57207Edit on GitHub Suggest

plástaN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:124589Edit on GitHub Suggest

Case	Sg	Pl
Indef	plast	plaster
Def	plasten	plastene