al·​ka·​line | \ ˈal-kə-lən, -ˌlīn \

Definition of alkaline

: of, relating to, containing, or having the properties of an alkali or alkali metal : basic especially, of a solution : having a pH of more than 7

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Other Words from alkaline

alkalinity \ ˌal-​kə-​ˈli-​nə-​tē \ noun

Examples of alkaline in a Sentence

Recent Examples on the Web

Viewers must decide if everyday foodstuffs, such as tomatoes, lemons, eggs and broccoli are classed as acidic or alkaline. Casey Quackenbush, Time, "Google Doodle Celebrates S.P.L. Sørensen, the Trailblazing Chemist Behind the pH Scale," 29 May 2018 Alkaline Diet The goal of an alkaline diet is to reduce the acidity in the body—which will supposedly aid in treating or preventing diseases—by nixing foods that are on the acidic side, like meat, dairy, eggs, and grains. The Editors, Marie Claire, "Every Type of Diet, Explained," 19 June 2017 The program there is really intense: one week of an alkaline diet (which means for me no coffee and no cigarettes), daily yoga and massages, chakra healing workshops, cooking classes, promenades on the beach, etc. Lola Rykiel, Harper's BAZAAR, "The Love Detox," 15 Apr. 2014 River sand, pump sand, batture sand and spillway sand are all fertile, alluvial soils with a slightly alkaline pH. Dan Gill,, "What is the optimal soil pH level for New Orleans lawns?," 25 May 2018 Carolyn Murphy: The Alkaline Diet An alkaline diet, which limits acidic foods in an effort to alter the body’s pH level, is high in fruits, vegetables, nuts, and legumes and low in meat, fish, dairy, eggs, grains, and alcohol. Elizabeth Inglese, Vogue, "Eat Like a Supermodel! 5 Healthy Food Plans Behind the World’s Best Bodies," 28 June 2018 There are cheaper places to camp around the area, but WellSprings camping includes a swim in the 103-degree naturally alkaline pool free of charge. Joe Jackson, San Francisco Chronicle, "Bard-land on a budget: Experiencing Ashland with 2 people for 2 days on $200," 24 May 2018 The Konjac Sponge combines naturally alkaline konjac root and exfoliating, purifying French clay to clear out pores and balance skin with each use. Melanie Yates, Woman's Day, "Clear Your Skin With a Mini-Facial Every Day," 25 Feb. 2015 After a few years, this severe iron deficiency starts to develop if it’s planted in alkaline soils. Neil Sperry, San Antonio Express-News, "Once vincas succumb to fungus, that bed is dead to them," 22 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'alkaline.' 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 alkaline

1682, in the meaning defined above

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Statistics for alkaline

Last Updated

11 Dec 2018

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Time Traveler for alkaline

The first known use of alkaline was in 1682

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More Definitions for alkaline



English Language Learners Definition of alkaline

: containing an alkali

: having the qualities of an alkali


al·​ka·​line | \ ˈal-kə-ˌlīn, -lən\

Kids Definition of alkaline

1 : having the properties of an alkali alkaline solutions
2 : containing an alkali Some plants grow better in alkaline soils.


al·​ka·​line | \ ˈal-kə-lən, -ˌlīn \

Medical Definition of alkaline

: of, relating to, containing, or having the properties of an alkali or alkali metal : basic especially, of a solution : having a pH of more than 7

Other Words from alkaline

alkalinity \ ˌal-​kə-​ˈlin-​ət-​ē \ noun, plural -ties

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More from Merriam-Webster on alkaline

Rhyming Dictionary: Words that rhyme with alkaline

Spanish Central: Translation of alkaline

Nglish: Translation of alkaline for Spanish Speakers

Britannica English: Translation of alkaline for Arabic Speakers

Comments on alkaline

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


to settle judicially or to act as judge

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