[{"Bold_text": "noun", "List Items": ["Chemistry. hydrogen peroxide hydrogen peroxide,H2O2or H–O–O–H.a compound containing the bivalent group –O2–, derived from hydrogen peroxide hydrogen peroxide,as sodium peroxide sodium peroxide,Na2O2, or dimethyl peroxide, C3H6O2.the oxide an element that contains an unusually large amount of oxygen.", "hydrogen peroxide hydrogen peroxide,H2O2or H–O–O–H.", "a compound containing the bivalent group –O2–, derived from hydrogen peroxide hydrogen peroxide,as sodium peroxide sodium peroxide,Na2O2, or dimethyl peroxide, C3H6O2.", "the oxide an element that contains an unusually large amount of oxygen."]}, {"Bold_text": "verb (used with object)", "List Items": ["to use peroxide as a bleaching agent on (especially the hair)."]}]