Wordnet 3.0
NOUN (1)
1. 
 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; 
[syn: hydrogen peroxide, peroxide]
WordNet (r) 3.0 (2006):
hydrogen peroxide
    n 1: 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 [syn: hydrogen peroxide,
         peroxide]