sodium
//ˈsoʊdiəm//
Noun
1
A soft, silvery-white, highly reactive metallic chemical element with the symbol Na and atomic number 11, belonging to the alkali metal group.
Sodium reacts violently with water.
2
A component of table salt (sodium chloride) and many other compounds, essential for various biological functions in living organisms.
Sodium is an essential mineral that helps regulate fluid balance in the body.