1. having undergone oxidation; combined with oxygen or having lost electrons in a chemical reaction
Usage: British spelling; American English uses 'oxidized'

1. past tense and past participle of oxidise; to combine with oxygen or cause to lose electrons
Usage: British spelling; American English uses 'oxidized'; chemistry

Examples

• The metal surface became oxidised after prolonged exposure to air and moisture.
• Iron oxidises quickly when left in damp conditions.
• The oxidised copper turned a distinctive green colour.
• During the reaction, the fuel was oxidised to produce energy.
• The oxidised layer of rust protected the underlying metal from further damage.
• When silver oxidises, it develops a dark tarnish.
• The scientist oxidised the compound by adding oxygen to the solution.