1. a chemical reaction in which a substance combines with oxygen or loses electrons
Usage: chemistry
2. the process of rusting or deterioration caused by exposure to oxygen

Examples

• The oxidation of iron produces rust.
• Antioxidants help prevent oxidation in the body.
• The metal showed signs of oxidation after being left outside.
• Oxidation is a key process in cellular respiration.
• The apple turned brown due to oxidation when exposed to air.
• Scientists studied the oxidation of various metals in the laboratory.