1. [ noun ] (chemistry) any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
Synonyms: base

"bases include oxides and hydroxides of metals and ammonia"

Related terms: compound pyridine thymine purine imidazole melamine purine uracil pyrimidine cytosine alkalize
2. [ noun ] (chemistry) a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture
Related terms: salt alkalize
Similar spelling:   alkalic