English dictionary



Hint: Question mark (?) is a wildcard. Question mark substitutes one character.

English noun: atomic number 77

1. atomic number 77 (substance) a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium


SynonymsIr, iridium


Broader (hypernym)metal, metallic element









Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
2026 onlineordbog.dk