Engelsk navneord: rare-earth element | |||
| 1. | rare-earth element (om masse el. substans) any element of the lanthanide series (atomic numbers 57 through 71) | ||
| Termer med samme betydning (synonymer) | lanthanide, lanthanoid, lanthanon, rare earth | ||
| Mindre specifikke termer | group, grouping | ||
| Mere specifikke termer | terbium metal | ||