parallellogramma is the neuter plural definite of parallellogram.

parallellogramN

North Sámi

parallellográmmaN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:2667Edit on GitHub Suggest

Case	Sg	Pl
Indef	parallellogram	parallellogramm
Def	parallellogrammet	parallellogramma