peroxide

noun

  1. 1

    A divalent radical or anion containing two oxygen atoms linked by a covalent bond; any substance containing this group which yields hydrogen peroxide when treated with an acid

  2. 2

    Hydrogen peroxide, especially an aqueous solution used as a bleach

  3. 3

    Any unstable compound or general formula R-O-O-R'

verb

  1. 1

    To treat (something) with hydrogen peroxide, especially hair in order to bleach it

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