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Potassium

//pəˈtæsiəm// noun

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."

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

Unscramble this word: potassium