noun, plural: oxidizing agents
Anysubstancethat has the ability tooxidizeothersubstance.
An oxidizing agent is asubstancethat accepts or receiveselectronfrom anothersubstance, hence, is consequentlyreduced. Since it accepts electrons it is also called anelectron acceptor.
Most of the oxidizing agents have high oxidation numbers or highly electronegative so that they can gain one or two extra electrons by oxidizing a substance.
See also:redox reaction.