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noun, Chemistry.
the process or result of oxidizing.
the deposit that forms on the surface of a metal as it oxidizes.

the act or process of oxidizing
(as modifier): an oxidation state, an oxidation potential

oxidation ox·i·da·tion (ŏk’sĭ-dā’shən)

The combination of a substance with oxygen.

A reaction in which the atoms in an element lose electrons and the valence of the element is correspondingly increased.


The chemical combination of a substance with oxygen.

A chemical reaction in which an atom or ion loses electrons, thus undergoing an increase in valence. Removing an electron from an iron atom having a valence of +2 changes the valence to +3. Compare reduction.

oxidative adjective

oxidation definition

Any chemical reaction in which a material gives up electrons, as when the material combines with oxygen. Burning is an example of rapid oxidation; rusting is an example of slow oxidation. (See combustion and reduction.)


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