Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun superoxide

2 senses of superoxide

Sense 1
superoxide -- (a metallic oxide containing the univalent anion O2-)
       => oxide -- (any compound of oxygen with another element or a radical)

Sense 2
superoxide, superoxide anion -- (the univalent anion O2-; "much of the O2 supporting cellular respiration is reduced to the superoxide anion O2-")
       => anion -- (a negatively charged ion)