tusenbeina is the neuter plural definite of tusenbein.

tusenbeinN

Kven

pyrnysN; tuhatjalkaN

Norwegian Bokmål – Kvendict-nob-fkv/src/N_nobfkv.xml:59700Edit on GitHub Suggest

duhátjuolggatN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:27743Edit on GitHub Suggest

Case	Sg	Pl
Indef	tusenbein	tusenbein
Def	tusenbeinet	tusenbeina