ox ‧ i ‧ dize BrE AmE ( also oxidise British English ) /ˈɒksədaɪz, ˈɒksɪdaɪz $ ˈɑːk-/ verb [intransitive and transitive] technical
to combine with oxygen, or make something combine with oxygen, especially in a way that causes ↑ rust
—oxidation /ˌɒksəˈdeɪʃ ə n, ˌɒksɪˈdeɪʃ ə n $ ˌɑːk-/ ( also oxidization /ˌaksədaɪˈzeɪʃ ə n, ˌaksɪdaɪˈzeɪʃ ə n $ ˌɑːksədə-/) noun [uncountable]