• The divalent O<sub>2</sub> group, or a compound containing this group, such as sodium peroxide, Na<sub>2</sub>O<sub>2</sub>, used as an oxidizing agent or bleach.
  • Hydrogen peroxide.
  • To treat with peroxide.
  • To bleach (hair) with hydrogen peroxide.
  • An oxide containing more oxygen than some other oxide of the same element. Formerly peroxides were regarded as the highest oxides. Cf. <xref urlencoded="per-">per-</xref>, 2.
  • a <xref>divalent</xref> <xref>radical</xref> or <xref>anion</xref> containing two <xref>oxygen</xref> <xref>atoms</xref> linked by a <xref>covalent bond</xref>; any substance containing this group which yields <xref>hydrogen peroxide</xref> when treated with an <xref>acid</xref>
  • <xref>hydrogen peroxide</xref>, especially an <xref>aqueous</xref> <xref>solution</xref>
  • to treat (something) with hydrogen peroxide, especially <xref>hair</xref> in order to <xref>bleach</xref> it
  • a viscous liquid with strong oxidizing properties; a powerful bleaching agent; also used (in aqueous solutions) as a mild disinfectant and (in strong concentrations) as an oxidant in rocket fuels
  • bleach with peroxide
  • an inorganic compound containing the divalent ion -O-O-
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