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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.
oxidative ox·i·da·tive (ŏk'sĭ-dā'tĭv)
Of, relating to, or characterized by oxidation.