1. The act of decreasing or reducing something
   "The reduction in production helped conserve resources";
   - decrease, diminution, step-down
    
2. Any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen); always occurs accompanied by oxidation of the reducing agent
   "The reduction of iron oxide to pure iron is an important industrial process";
   - reducing
    
3. The act of reducing complexity
   "The reduction of the problem to its basic elements helped in finding a solution";
   - simplification

Derived forms: reductions

Type of: change, change of magnitude, chemical reaction, reaction

Encyclopedia: Reduction, Pennsylvania