Etymology: Potassium derives from the word potassa (potash) with the suffix -ium.
- a soft, waxy, silvery reactive metal that is never found unbound in nature; an element (symbol K) with an atomic number of 19 and atomic weight of 39.0983. The symbol is derived from the Latin kalium.
Supplemental Details:Sponsor an extended definition for potassium for as little as $10 per month. Click here to contact us.
Full Definition of potassium