su·per·ox·ide /-ˈɑkˌsaɪd/
  超氧化物; 過氧化物
  su·per·ox·ide /-ˈɑkˌsaɪd/ 名詞
  過氧化物,超氧化物
  Su·per·ox·ide n. Chem. See Peroxide. [Obs.]
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  superoxide
       n 1: a metallic oxide containing the univalent anion O2-
       2: the univalent anion O2-; "much of the O2 supporting cellular
          respiration is reduced to the superoxide anion O2-" [syn:
          superoxide anion]