(from the article `acid–base reaction`) Certain general principles apply to any solvent with both acidic and basic properties—for example, water, alcohols, ammonia, amines, and acetic acid. ...
In medicine, the state of having the right amount of acid and base in the blood and other body fluids. Keeping a normal acid-base equilibrium is important for the body to work the way it should. Also called acid-base balance.
A condition in which the net rate of acid or alkali production by the body is balanced by the net rate of acid or alkali excretion from the body, resulting in a stable concentration of hydrogen ions in the body fluids. ... (12 Dec 1998) ... 
Type: Term Synonyms: acid-base balance
[n] - (physiology) the normal equilibrium between acids and alkalis in the body
acid-base balance noun (physiology) the normal equilibrium between acids and alkalis in the body; `with a normal acid-base balance in the body the blood is slightly alkaline`