+An **oxidizer**, or oxidizing agent, is a chemical species that readily accepts electrons from another substance, causing that substance to be [oxidized](/wiki/oxidation). In this fundamental [redox reaction](/wiki/redox_reaction), the oxidizer itself is reduced, playing a critical role in processes like combustion and corrosion.
+## See also
+- [Reductant](/wiki/reductant)
+- [Combustion](/wiki/combustion)
+- [Electron](/wiki/electron)