alkaline

[ al-kuh-lahyn, -lin ]

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. Compare acid ( def 5c ).

alkaline

/ ˈælkəˌlaɪn /

adjective

1. having the properties of or containing an alkali

alkaline

/ 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.

Word History and Origins

Origin of alkaline¹

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

Example Sentences

In between, the body and brain are depleted of fluids and serotonin, while everything you bring collects a layer of corrosive alkaline dust that follows you home.

From Los Angeles Times

As baking soda is alkaline, soaking longer than 15 minutes and not rinsing thoroughly may break down the skins of delicate fruits and vegetables, affecting their texture and flavor.

From Salon

Rehydrating the body using alkaline salt neutralizes the acid from alcohol and dehydration; however, this product would benefit from a better balance of all electrolytes, not just high amounts of sodium.”

From Los Angeles Times

If you have acid soil, you might need to add lime to shift to more alkaline conditions.

From Seattle Times

Soda lakes are some of the harshest environments on Earth, being both highly saline and very alkaline.

From Science Daily

Related Words

• salty
• soluble