|
|
 |
|
|
|
|
| co·lum·bi·um [ kə lúmbee əm ] |
noun |
|
| Definition: |
| |
niobium: the element niobium
Symbol Cb
(
not in technical use
)
|
| [Early 19th century. < modern Latin Columbia "America"; because discovered in ore from Massachusetts] |
|
 co·lum·bic adjective |
| co·lum·bous adjective |
|
|
|
|
