| Engelsk navneord: atomic number 77 | |||
| 1. | atomic number 77 (om masse el. substans) a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium | ||
| Termer med samme betydning (synonymer) | Ir, iridium | ||
| Mindre specifikke termer | metal, metallic element | ||