deoxidize Syllabification: (de·ox·i·dize)Pronunciation: /dēˈäksiˌdīz/Definition of deoxidize verb [with object] remove combined oxygen from (a substance, usually a metal). Derivatives deoxidationPronunciation: /-ˌäksiˈdāSHən/ noun deoxidizer noun deoxidize in other Oxford dictionaries Definition of deoxidize in the British & World English dictionary