1. The univalent anion O2-
   "much of the O2 supporting cellular respiration is reduced to the superoxide anion O2-"
   - superoxide

Type of: anion

• unseductive
• unseeable
• unseeded
• unseeing
• unseeingly
• unseemliness
• unseemly
• unseen
• unsegmented
• unsegregated
• unselected
• unselective
• unselfconscious
• unselfconsciously
• unselfconsciousness
• unselfish
• unselfishly
• unselfishness
• unsensational
• unsensible
• unsent
• unsentimental
• unsentimentally
• unserviceable
• unservile