alkaline

/ˈælkəlaɪn/

/ˈælkəlaɪn/

Definitions of alkaline

1. adjective

   relating to or containing an alkali; having a pH greater than 7
   “alkaline soils derived from chalk or limestone”

   synonyms: alkalic

   alcalescent, alkalescent

   tending to become alkaline; slightly alkaline

   basic

   of or denoting or of the nature of or containing a base

   base-forming

   yielding a base in aqueous solution

   saltlike

   resembling a compound formed by replacing hydrogen in an acid by a metal

   antonyms:

   acidic

   being or containing an acid; of a solution having an excess of hydrogen atoms (having a pH of less than 7)

   amphoteric

   having characteristics of both an acid and a base and capable of reacting as either

   acid

   having the characteristics of an acid

   acid-forming

   yielding an acid in aqueous solution