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
Milk also provides major electrolytes, including sodium and potassium, which support hydration, says Ehsani.
—
Kirsten Nunez, Martha Stewart, 4 Apr. 2026
Magnesium, vitamin K, potassium, phosphorus and trace minerals also help maintain healthy bones.
—Hadia Zainab, CNN Money, 2 Apr. 2026
Cauliflower offers slightly more vitamin C, potassium, and protein, while cabbage provides more fiber and calcium.
—Heather Jones, Verywell Health, 2 Apr. 2026
With more than a dozen varieties grown in and around SoCal, in 2026 alone, heads (of cabbage) will roll if Angelenos can’t get their fix of this vitamin-rich, potassium-laden, calcium-blasted antioxidant VIP in 2026.
—Rebecca Leib, Los Angeles Times, 1 Apr. 2026
See All Example Sentences for potassium
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Kirsten Nunez, Martha Stewart, 4 Apr. 2026
Magnesium, vitamin K, potassium, phosphorus and trace minerals also help maintain healthy bones.
—Hadia Zainab, CNN Money, 2 Apr. 2026
Cauliflower offers slightly more vitamin C, potassium, and protein, while cabbage provides more fiber and calcium.
—Heather Jones, Verywell Health, 2 Apr. 2026
With more than a dozen varieties grown in and around SoCal, in 2026 alone, heads (of cabbage) will roll if Angelenos can’t get their fix of this vitamin-rich, potassium-laden, calcium-blasted antioxidant VIP in 2026.
—Rebecca Leib, Los Angeles Times, 1 Apr. 2026
See All Example Sentences for potassium
Cite this Entry
“Potassium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/potassium. Accessed 7 Apr. 2026.
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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