From Wiktionary, the free dictionary
edel + Gas
Edelgas n (strong, genitive Edelgases, plural Edelgase)
- noble gas
Declension of Edelgas [neuter, strong]
- “Edelgas” in Duden online
- “Edelgas”, in Digitales Wörterbuch der deutschen Sprache[1] (in German)