Definitions
Soft metallic element and important nutrient mineral.
Word origin
Coined by British chemist Humphry Davy in 1807, from potassa (a Latinized form of potash) + -ium.
Used in a sentence
“We all need potassium, and green vegetables are a good source.”
“This reaction substitutes a potassium for a sodium.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Banana mineral”9 letters
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