alkali metal


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 In the paper, scientists characterize the meteorites’ material phases as alloys of lead, tin and indium, which is the softest non-alkali metal. Fox News, 24 Mar. 2020 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, 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, 21 Oct. 2018 The calibration is done with the alkali metal cesium. Jay Bennett, Popular Mechanics, 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.

First Known Use of alkali metal

1860, in the meaning defined above

Learn More About alkali metal

Time Traveler for alkali metal

Time Traveler

The first known use of alkali metal was in 1860

See more words from the same year

Dictionary Entries Near alkali metal

alkali mallow

alkali metal


See More Nearby Entries 

Statistics for alkali metal

Cite this Entry

“Alkali metal.” Dictionary, Merriam-Webster, Accessed 8 Aug. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for alkali metal

alkali metal


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 Encyclopedia article about alkali metal


Test Your Vocabulary

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
True or False

Test your knowledge - and maybe learn something along the way.

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

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