What does oxidate mean?
To oxidize means to undergo or bring about oxidation, a chemical change in which a substance combines with oxygen or loses electrons. Oxidation is responsible for familiar transformations such as iron becoming rust, silver tarnishing, and copper developing a green patina. The process is also central to combustion, batteries, metallurgy, and many industrial reactions. Although oxygen often participates, oxidation is more precisely defined by an increase in a substance’s oxidation state, and not every oxidation reaction depends on molecular oxygen directly. In everyday language, the word often carries associations of deterioration, discoloration, or corrosion. In scientific contexts, however, oxidation can also be deliberately controlled and useful, as when a metal is treated to improve its surface properties or when oxidation reactions are used to generate energy.
verbTo oxidize is to combine a substance with oxygen or cause it to undergo oxidation, a chemical process involving the loss of electrons and often an increase in oxidation state.
- To undergo or cause a chemical reaction involving oxygen or the loss of electrons.
- To become or cause something to become oxidized, especially rusty or tarnished.
"Moisture and oxygen can oxidize the iron in a nail, gradually turning it into rust."
"Copper oxidizes slowly when exposed to air and moisture, developing a green surface layer."
"The factory uses controlled conditions to oxidize iron before applying a protective coating."
Rust, tarnished silver, and the chemistry inside a battery all reveal the transformative power of oxidation.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does oxidate come from?
The verb entered English in the early 19th century from the French oxyder, formed from oxide with the suffix -er. Oxide itself was created from Greek roots combining oxys, meaning “sharp” or “acidic,” with eidos, meaning “form.” The related oxygen was also coined in the late 18th century from Greek roots meaning “acid-producer,” reflecting an early understanding of acids.
Related word forms
How oxidate is actually used
The standard spelling is oxidize in US English and oxidise in British English. The term is chiefly used in chemistry, metallurgy, and industrial processes, though it is readily understood in general contexts such as rusting and tarnishing.
Easily confused with oxidate
Oxidize is the verb describing the process, whereas oxide is a noun for a compound formed by combining another element with oxygen.
Oxidation names the chemical process, while oxidize names the action of causing or undergoing that process.