potassium
noun
po·tas·si·um
pə-ˈta-sē-əm 
often attributive
: a silver-white soft light low-melting monovalent metallic element of the alkali metal group that occurs abundantly in nature especially combined in minerals see Chemical Elements Table
Examples of potassium in a Sentence
Recent Examples on the Web
Water softeners remove calcium and magnesium ions from your home’s water supply and replace them with sodium or potassium ions.
—
Nafeesah Allen, Better Homes & Gardens, 2 June 2025
Those minerals include salt (sodium chloride) and potash (mostly potassium oxide), which farmers prize as a fertilizer.
—Christopher Helman, Forbes.com, 30 May 2025
And the drink’s high potassium levels may be harmful for those with kidney failure or chronic kidney disease.
—Paul McClure 24, New Atlas, 24 May 2025
Plus, a small handful of sunflower seeds packs a high punch of this nutrient for those who don't meet the daily potassium requirement.2
11.
—Cristina Mutchler, Verywell Health, 23 May 2025
See All Example Sentences for potassium
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Nafeesah Allen, Better Homes & Gardens, 2 June 2025
Those minerals include salt (sodium chloride) and potash (mostly potassium oxide), which farmers prize as a fertilizer.
—Christopher Helman, Forbes.com, 30 May 2025
And the drink’s high potassium levels may be harmful for those with kidney failure or chronic kidney disease.
—Paul McClure 24, New Atlas, 24 May 2025
Plus, a small handful of sunflower seeds packs a high punch of this nutrient for those who don't meet the daily potassium requirement.2
11.
—Cristina Mutchler, Verywell Health, 23 May 2025
See All Example Sentences for potassium
Cite this Entry
“Potassium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/potassium. Accessed 8 Jun. 2025.
Copy CitationKids Definition
potassium
noun
po·tas·si·um
pə-ˈtas-ē-əm
: a silver-white soft light metallic element that has a low melting point and occurs abundantly in nature especially combined in minerals see element
Medical Definition
potassium
noun
po·tas·si·um
pə-ˈtas-ē-əm
: a silver-white soft light low-melting monovalent metallic element of the alkali metal group that occurs abundantly in nature especially combined in minerals
—symbol K
see Chemical Elements Table
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