Skip to Content


Pronunciation: pe-rok'sid


  1. That oxide of any series that contains the greatest number of oxygen atoms; applied most correctly to compounds containing an –O–O– link, as in hydrogen peroxide (H–O–O–H); a hydroperoxide is R–O–O–H.
  2. The O22- ion.
  3. Any member of a class of metallic oxides that contain the peroxide ion.
Disclaimer: This site is designed to offer information for general educational purposes only. The health information furnished on this site and the interactive responses are not intended to be professional advice and are not intended to replace personal consultation with a qualified physician, pharmacist, or other healthcare professional. You must always seek the advice of a professional for questions related to a disease, disease symptoms, and appropriate therapeutic treatments.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.