|
|
| so·di·um [ sṓdee əm ] |
noun |
|
| Definition: |
| |
abundantly occurring chemical element: a soft silver white metallic element that reacts readily with other substances and is essential to the body's fluid balance. Source: common salt, calcium chloride. Use: catalyst, tracer, in chemical processes.
Symbol Na
|
| [Early 19th century. <soda; from its being isolated from caustic soda] |
|
