The term depolarizer is defined as a substance, especially a chemical, that removes the polarization of light or electrical charge. Some synonyms for depolarizer include discharger, neutralizer, and equalizer. A discharger is a device or substance that removes or neutralizes an electrical charge, such as a capacitor. A neutralizer is a substance or device that neutralizes a chemical reaction or substance, such as an alkaline solution. An equalizer is a device or substance that balances or equalizes differences or discrepancies between two or more things, such as in an audio system. These synonyms are often used interchangeably depending on the context and field of study.