What does oxidize mean?
Oxidize means to undergo or cause oxidation, the chemical process in which a substance reacts with oxygen or otherwise loses electrons. The word is especially common in discussions of metals, where exposure to air, moisture, or other substances can produce a surface oxide. It can also describe the gradual deterioration of a material, such as the oxidation of paint, rubber, or food. In figurative English, to oxidize something means to make it steadily worse, usually through neglect, conflict, or a corrosive process. This figurative use is less frequent than the scientific one but can be especially effective when discussing the slow decline of a person, institution, conversation, or situation. The related noun “oxidation” names the process itself, while “oxide” names a compound produced by it.
verbTo combine a substance with oxygen, or to cause it to undergo a chemical reaction involving oxygen. In figurative use, to become or make something progressively worse, especially through a harmful process.
- To combine a substance with oxygen or cause it to undergo oxidation.
- To become oxidized, as a metal surface does when exposed to air or moisture.
- To make something progressively worse, especially through a damaging or corrosive process.
"Heat can oxidize the metal surface, forming a protective layer of oxide."
"Copper oxidizes gradually when exposed to moist air."
"The editor was accused of oxidizing the discussion into a bitter argument."
From oxygen to irony: oxidize can describe both the slow transformation of metal and the steady worsening of a problem.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does oxidize come from?
The word comes from the Latin oxid-, a form of “oxys” meaning “sharp” or “acidic,” together with the suffix -ize, from Greek -izein, “to make like” or “to cause to become.” The term developed from the identification of oxygen as the substance responsible for combustion and corrosion. English also uses the related spelling “oxidise,” especially in British English, while “oxidize” is standard in American English.
Related word forms
How oxidize is actually used
The technical sense is standard in chemistry and materials science. The figurative sense is less common and often suggests a gradual, damaging change rather than a single destructive event.
Easily confused with oxidize
Oxidize is a verb describing the process of reaction with oxygen, whereas oxide is a noun for a compound formed through oxidation or by combining a substance with oxygen.