plastra is the neuter plural definite of plaster.

plasterN

Kven

laastariN

Norwegian Bokmål – Kvendict-nob-fkv/src/N_nobfkv.xml:8653Edit on GitHub Suggest

loasttarN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:53618Edit on GitHub Suggest

Case	Sg	Pl
Indef	plaster	plastre
Def	plasteret	plastra