from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The divalent O2 group, or a compound containing this group, such as sodium peroxide, Na2O2, used as an oxidizing agent or bleach.
  • noun Hydrogen peroxide.
  • transitive verb To treat with peroxide.
  • transitive verb To bleach (hair) with hydrogen peroxide.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Chem.) An oxide containing more oxygen than some other oxide of the same element. Formerly peroxides were regarded as the highest oxides. Cf. per-, 2.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun chemistry 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
  • noun hydrogen peroxide, especially an aqueous solution
  • verb transitive to treat (something) with hydrogen peroxide, especially hair in order to bleach it

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun 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
  • verb bleach with peroxide
  • noun an inorganic compound containing the divalent ion -O-O-


Sorry, no etymologies found.



Log in or sign up to get involved in the conversation. It's quick and easy.