alkaline

American  

[al-kuh-lahyn, -lin] / ˈæl kəˌlaɪn, -lɪn /

adjective

Chemistry.

1. of or like an alkali.

2. containing an alkali.

3. having the properties of an alkali.

4. having a pH value greater than 7.

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alkaline British  

/ ˈælkəˌlaɪn /

adjective

1. having the properties of or containing an alkali

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alkaline Scientific  

/ ăl′kə-lĭn,-līn′ /

1. Capable of neutralizing an acid. Bases are alkaline.

2. Relating to an alkali compound.

3. Having a pH greater than 7.

4. Having a relatively low concentration of hydrogen ions.

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Etymology

Origin of alkaline

First recorded in 1670–80; alkal(i) + -ine ¹

Example Sentences

But as aqueduct inflows washed over the playa, they dissolved alkaline minerals there, creating a vast corrosive brine pool that could ruin some of the dust control projects, officials said.

From Los Angeles Times

It was just before sunrise in July when the botanists Naomi Fraga and Maria Jesus threw on backpacks and crunched their way across a brittle alkaline flat in the hottest corner of the Mojave Desert.

From Los Angeles Times

For soft stains, she recommends a strong alkaline solution with a pH of 11 to 14.

From Washington Post

Many of the store’s alkaline batteries from in-house brand Insignia are over half off their usual price.

From The Verge

It is alkaline, which means it has a pH above the neutral 7 and reacts with acidic ingredients.

From Washington Post

Related Words

• salty
• soluble