Definitions

1. adjective

relating to or resembling an alcali; having a pH that is higher than 7

“The prealkalic lake water is not suitable for drinking without proper treatment.”

2. noun

a substance that has a pH higher than 7

“The prealkalic chemical composition of the soil makes it difficult to grow certain crops.”

3. noun

a geological term referring to a type of alkaline rock

“The prealkalic rock formations in the area are a result of ancient volcanic activity.”