ˈælkəˌlɪn, ˈælkəˌlin

Definitions

1. adjective

having the properties of an alkali, especially a pH of above 7.

“The alkaline water helped to neutralize the acidity in her stomach.”

2. noun

a compound that is soluble in water, has a characteristic bitter taste, and turns red litmus blue.

“The laboratory used the alkalin to analyze the chemical composition of the sample.”

3. verb

to make or become alkaline.

“The soil was alkalized by the addition of lime.”