1. To make normal, especially to cause to conform to a standard or norm: normalize a patient's temperature; normalizing relations with a former enemy nation.

2. To cause (something previously regarded as anomalous) to be accepted as normal, thereby altering the accepted norm: “The increased visibility of Iraq War amputees has helped normalize the use of prostheses” (Bruce Barcott).

3. To make (a text or language) regular and consistent, especially with respect to spelling or style.

4. To remove strains and reduce coarse crystalline structures in (metal), especially by heating and cooling.