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peroxide

Pronunciation: /pəˈrɒksʌɪd/

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Definition of peroxide

noun

Chemistry

a compound containing two oxygen atoms bonded together in its molecule or as the anion O₂²⁻: the peptide neutralizes free radicals and peroxides, both of which can prevent cells from operating properly benzoyl peroxide sodium peroxide
[mass noun] hydrogen peroxide, especially as used as a bleach for the hair: [as modifier]:a peroxide blonde