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
Both juices provide potassium, but pomegranate juice is a better source, offering about 64% more than beet juice.
—
Jillian Kubala, Health, 20 Apr. 2026
However, when applied as a top dressing to existing peony beds, compost is usually not enough to fix any phosphorus or potassium deficiencies.
—Andy Wilcox, Better Homes & Gardens, 20 Apr. 2026
Cade realized the players were sweating out electrolytes — another word for minerals like sodium, potassium and magnesium — and upsetting the body’s chemical balance.
—Dee-Ann Durbin, Los Angeles Times, 17 Apr. 2026
As a result, prices for three major fertilizers farmers use (nitrogen, phosphorus, and potassium) have all increased by double digits, according to Josh Linville, vice president of fertilizer at financial services firm StoneX Group.
—Marco Quiroz-Gutierrez, Fortune, 16 Apr. 2026
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Jillian Kubala, Health, 20 Apr. 2026
However, when applied as a top dressing to existing peony beds, compost is usually not enough to fix any phosphorus or potassium deficiencies.
—Andy Wilcox, Better Homes & Gardens, 20 Apr. 2026
Cade realized the players were sweating out electrolytes — another word for minerals like sodium, potassium and magnesium — and upsetting the body’s chemical balance.
—Dee-Ann Durbin, Los Angeles Times, 17 Apr. 2026
As a result, prices for three major fertilizers farmers use (nitrogen, phosphorus, and potassium) have all increased by double digits, according to Josh Linville, vice president of fertilizer at financial services firm StoneX Group.
—Marco Quiroz-Gutierrez, Fortune, 16 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 24 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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