potassium

noun

po·​tas·​si·​um pə-ˈta-sē-əm How to pronounce potassium (audio)
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In other cases, medications prescribed after surgery may generate high levels of potassium in the blood, causing irregular heartbeats, said Dr. Elliot Tapper, an associate professor of hepatology at the University of Michigan. Aria Bendix, NBC News, 27 Feb. 2025 Magnesium deficiency can disrupt normal levels of potassium and calcium. Jennifer Lefton, Ms, Rd/n, Cnsc, Fand, Verywell Health, 26 Feb. 2025 They were created by a team of Brazilian scientists, who started by producing a solid piece of water-soluble oxide glass containing common fertilizer nutrients such as phosphorus, calcium, and potassium. Ben Coxworth, New Atlas, 24 Feb. 2025 In addition, by limiting the amount of potassium that can be absorbed, calcium helps the grapes maintain a higher level of acidity. Mike Desimone and Jeff Jenssen, Robb Report, 24 Feb. 2025 See All Example Sentences for potassium

Word History

Etymology

New Latin, from potassa potash, from English potash

First Known Use

circa 1807, in the meaning defined above

Time Traveler
The first known use of potassium was circa 1807

Cite this Entry

“Potassium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/potassium. Accessed 3 Mar. 2025.

Kids Definition

potassium

noun
po·​tas·​si·​um pə-ˈtas-ē-əm How to pronounce potassium (audio)
: 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 How to pronounce potassium (audio)
: 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

More from Merriam-Webster on potassium

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!