Praseodymium
| Date Released: |
|
|
Nov. 05, 1999 |
praseodymium n. soft silvery metallic element of the lanthanide series. [Greek prasios green] |
Praseodymium | Date Released: |
|
|
Nov. 05, 1999 |
praseodymium n. soft silvery metallic element of the lanthanide series. [Greek prasios green] |