You searched for: “neutralization
1. Action intended to nullify the effects of some previous action.
2. An action intended to keep a country politically neutral or to exclude it from a possible war.
3. The removal of a threat by killing or destroying it; especially, in a covert operation or military operation.
4. The process of making a solution neutral (pH = 7) by adding a base to an acid solution, or adding an acid to an alkaline (basic) solution; which is also known as neutralization reaction.
5. A chemical reaction in which an acid and a base interact with the formation of a salt.

With strong acids and bases, the essential reaction is the combination of hydrogen ions with hydroxyl ions to form water.