peroxide

The divalent O₂ group, or a compound containing this group, such as sodium peroxide, Na₂O₂, 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. per-, 2.

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

hydrogen peroxide, especially an aqueous solution

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