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Definitions

alkali

[al-kuh-lahy] / ˈæl kəˌlaɪ /
NOUN
soluble base; opposite of an acid
Synonyms


Example Sentences

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Lynn Boulton, the Sierra Club’s local conservation chair, walked along a dirt road to what was once a marshy alkali meadow.

From Los Angeles Times Oct. 18, 2025

The low-carbon seawater then has alkali added to it – to neutralise the acid that was added – and is then pumped back out into a stream that flows into the sea.

From BBC Apr. 17, 2025

Another Los Angeles Times report on a roundup of immigrants begins by noting, “Human misery was compounded here today by a blistering desert sun and swirls of alkali dust.”

From Salon Sep. 21, 2024

Using the proposed method, larger alkali metal ions such as cesium could be incorporated into the perovskite structure, leading to ferroelectrics with desirable dielectric properties.

From Science Daily Apr. 25, 2024

Experiments of the German Gerhard Schramm, first published in 1944, reported that TMV particles in mild alkali fell apart into free RNA and a large number of similar, if not identical, protein molecules.

From "Double Helix" by James D. Watson

Pots, pans, vats, machines exposed to corrosives will be protected by a skin of aluminum, metal highly resistant to mos.t acids and alkalies.

From Time Magazine Archive

Glu′coside, any of those vegetable products which, on treatment with acids or alkalies, yield a sugar or some closely allied carbohydrate; Glucosūr′ia, the presence of glucose in the urine.

From Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) by Various

In 1800 Nicholson and Carlisle decomposed water by passing the electric current through the same; Ritter decomposed copper sulphate, and Davy decomposed the alkalies, potash and soda.

From Inventions in the Century by William Henry Doolittle

Second, they must not be easily affected by acids or alkalies; hence, it has been difficult to produce colors that are reasonably permanent and at the same time harmless.

From Frye's Practical Candy Maker Comprising Practical Receipts for the Manufacture of Fine "Hand-Made" Candies by George V. Frye

At one time, he longs for acids; at another, alkalies; now, he wants stimulants; then, refrigerants, &c.

From The American Reformed Cattle Doctor by George Dadd

In addition, the scientists substituted ammonium and tetramethyl ammonium, the former of which is mildly acidic, for the alkalis.

From Science Daily Feb. 12, 2024

Fermenting encompasses a range of processes through which microorganisms — yeasts, molds, bacteria — break down compounds in food to create alcohols, acids or alkalis, which in turn prevent the growth of harmful pathogens.

From Salon Dec. 6, 2023

Coal provided the power; the nascent chemical industry supplied the acids and alkalis essential to these enterprises.

From Nature Aug. 30, 2020

Alkalis were extracted from ashes, and soaps were prepared by combining these alkalis with fats.

From Textbooks Feb. 14, 2019

The amount of water in the rock increases and part of the alkalis is carried away in solution; they form valuable sources of mineral food to plants.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" by Various




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