Ruthenium
| Date Released: |
|
|
Nov. 05, 1999 |
ruthenium n. rare hard white metallic element from platinum ores. [medieval Latin Ruthenia Russia] |
Ruthenium | Date Released: |
|
|
Nov. 05, 1999 |
ruthenium n. rare hard white metallic element from platinum ores. [medieval Latin Ruthenia Russia] |