alkali metal

noun

Definition of alkali metal

: any of the monovalent mostly basic metals of group I of the periodic table comprising lithium, sodium, potassium, rubidium, cesium, and francium — see Periodic Table

Examples of alkali metal in a Sentence

Recent Examples on the Web

The first group, known as the alkali metals, has just one such electron, easy to lose when reacting with an element that has more electrons, such as one from the 17th group, the halogens. Bill Andrews, Discover Magazine, "Everything Worth Knowing About The Periodic Table," 26 June 2019 The brine water that has been accumulating for millennia under the Atacama is lithium-rich, and companies pump it out and send the brine to evaporation ponds where heat extracts the water and leaves the reactive alkali metal behind. Megan Geuss, Ars Technica, "Lithium giants feud over competition, brine in Chile’s Atacama Desert," 21 Oct. 2018 The calibration is done with the alkali metal cesium. Jay Bennett, Popular Mechanics, "The Centuries-Long Quest to Measure One Second," 24 Mar. 2017

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

See More

First Known Use of alkali metal

1860, in the meaning defined above

Keep scrolling for more

Learn More about alkali metal

Statistics for alkali metal

Last Updated

9 Jul 2019

Look-up Popularity

Time Traveler for alkali metal

The first known use of alkali metal was in 1860

See more words from the same year

Keep scrolling for more

More Definitions for alkali metal

alkali metal

noun

Medical Definition of alkali metal

: any of the univalent mostly basic metals of group I of the periodic table comprising lithium, sodium, potassium, rubidium, cesium, and francium

More from Merriam-Webster on alkali metal

Britannica.com: Encyclopedia article about alkali metal

Comments on alkali metal

What made you want to look up alkali metal? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a period when something is suspended

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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