What does "potassium" mean?

A soft, waxy, silvery reactive metal that is never found unbound in nature; an element with atomic number 19 and atomic weight of 39.0983.

Potassium

Common synonyms include: alkali metal, atomic number 19, chemical element, dietary mineral, element, essential mineral.

/pəˈtæsiəm/ noun

noun ·Rare ·Advanced level

Noun

1
A soft, waxy, silvery reactive metal that is never found unbound in nature; an element with atomic number 19 and atomic weight of 39.0983. uncountable, usually
"We all need potassium, and green vegetables are a good source."
2
a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite wordnet
3
A single atom of this element. countable, usually
"This reaction substitutes a potassium for a sodium."

"Berries are high in minerals such as potassium."

Coined by British chemist Humphry Davy in 1807, from potassa (a Latinized form of potash) + -ium.