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English definition of “dioxide”

dioxide

noun [U]     /daɪˈɒk.saɪd/ US  /-ˈɑːk-/ specialized
a chemical substance consisting of two atoms of oxygen combined with one atom of another element : carbon / sulphur dioxideTypes of chemicalSpecific chemicals, chemical compounds and gasesSubstances and structures in the body
(Definition of dioxide noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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