noun, often attributive
po·​tas·​si·​um | \ pə-ˈta-sē-əm How to pronounce potassium (audio) \

Definition of potassium

: 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

The grains incorporated trace amounts of radioactive potassium, which has steadily decayed into argon ever since, providing a clock that shows the landscape formed 60 million to 70 million years ago. Paul Voosen, Science | AAAS, "Dinosaur-age landscapes lurk in Southern Hemisphere," 26 June 2019 Avery Brewing has Go Play IPA, a lower alcohol IPA with added salt and potassium, and Boulevard Brewing has Easy Sport Recreation Ale, which is brewed with tangerine peel, sea salt and added electrolytes. Jay R. Brooks, The Mercury News, "Sierra Nevada Brewing ventures into wellness beer," 17 June 2019 But this still couldn't explain the unusual excess of potassium in the diamond's salty slurries, Förster says. Maya Wei-haas, National Geographic, "Earth's seafloor may be destined to become diamonds," 30 May 2019 Fruits and veggies serve up potassium, a mineral that promotes healthy blood pressure by keeping sodium levels in check. Marygrace Taylor, Woman's Day, "4 Heart-Healthy Diet Changes Every Woman Should Make," 1 May 2019 Corry suspected Lisa was hypokalemic, dangerously low on potassium. Eli Saslow, Washington Post, "‘Urgent needs from head to toe’: This clinic had two days to fix a lifetime of needs," 22 June 2019 NuTek Salt is salt with less sodium (and more potassium). Elizabeth Lopatto, The Verge, "Beyond Meat’s success may mean more fake food is on the way," 6 June 2019 Leaky crystal Metals like potassium are fairly straightforward on a microscopic level. Adam Mann, National Geographic, "Confirmed: New phase of matter is solid and liquid at the same time," 8 Apr. 2019 Elements like phosphorus, nitrogen, and potassium could be salvaged from such waste. David Grossman, Popular Mechanics, "What If Animal Feces Could Be Recycled for Metals and Valuable Elements?," 29 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'potassium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of potassium

circa 1807, in the meaning defined above

History and Etymology for potassium

New Latin, from potassa potash, from English potash

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Statistics for potassium

Last Updated

13 Jul 2019

Look-up Popularity

Time Traveler for potassium

The first known use of potassium was circa 1807

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More Definitions for potassium



English Language Learners Definition of potassium

: a soft, silver-white metal that is used especially in farming and industry


po·​tas·​si·​um | \ pə-ˈta-sē-əm How to pronounce potassium (audio) \

Kids Definition of potassium

: a silvery soft light metallic chemical element found especially in minerals


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

Medical Definition of potassium

: 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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More from Merriam-Webster on potassium

Spanish Central: Translation of potassium

Nglish: Translation of potassium for Spanish Speakers

Britannica English: Translation of potassium for Arabic Speakers

Britannica.com: Encyclopedia article about potassium

Comments on potassium

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characterized by aphorism

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