In chemistry, any reaction in which electrons are transferred. Originally referred to the chemical combination of oxygen atoms with the atoms of other elements. Oxidation always occurs simultaneously with reduction (redox reactions). The substance which gains electrons is called the oxidizing agent.

Commonly seen examples of oxidation include fire or burning, and rusting.

To be a pedant, Golly Gee, it is only oxidation if loss of electrons takes place.

We have learnt a little sort-of-acronym: LEO says GER.

Lose Elecrons: Oxidation (Oh, how I love recursive hardlinking), Gain Electrons: Reduction. These two reaction types form the two halves of redox chemistry.

Yes, the one that gains electrons IS an oxidising agent, but it is the other one which is actually oxidised.

Ox`i*da"tion (?), n. [Cf. F. oxidation.] Chem.

The act or process of oxidizing, or the state or result of being oxidized.

 

© Webster 1913.