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
Stewed apples are a good source of pectin, vitamin C, B vitamins, potassium, and antioxidants, including quercetin, Johnson said.
—
Maggie O'Neill, Verywell Health, 17 Oct. 2025
Broccoli is high in fiber and essential nutrients like potassium, vitamin A, folate, and vitamin C.
—Jillian Kubala, Health, 17 Oct. 2025
If a soil test indicates that your soil is low in potassium, apply at a rate of 1 pound of potash per 1000 square feet of lawn.
—Mary Marlowe Leverette, Southern Living, 17 Oct. 2025
The electrolyte surrounding the negative electrode contained glucose and active riboflavin, while the positive side used either potassium ferricyanide or oxygen.
—Aamir Khollam, Interesting Engineering, 16 Oct. 2025
See All Example Sentences for potassium
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Maggie O'Neill, Verywell Health, 17 Oct. 2025
Broccoli is high in fiber and essential nutrients like potassium, vitamin A, folate, and vitamin C.
—Jillian Kubala, Health, 17 Oct. 2025
If a soil test indicates that your soil is low in potassium, apply at a rate of 1 pound of potash per 1000 square feet of lawn.
—Mary Marlowe Leverette, Southern Living, 17 Oct. 2025
The electrolyte surrounding the negative electrode contained glucose and active riboflavin, while the positive side used either potassium ferricyanide or oxygen.
—Aamir Khollam, Interesting Engineering, 16 Oct. 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 20 Oct. 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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