alkaline

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).

adjective

1. having the properties of or containing an alkali

adj.

1670s, “pertaining to alkalis,” from alkali + -ine (1). Of soils, attested from 1850.

adj.

1. Of, relating to, or containing an alkali.
2. Having a pH greater than 7.

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.