peroxide
noun
Definitions
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 used as a bleach
Any unstable compound or general formula R-O-O-R'
verb
Definitions
To treat (something) with hydrogen peroxide, especially hair in order to bleach it