superoxide

noun

Etymology: Etymology tree Proto-Indo-European *úp Proto-Indo-European *-er Proto-Indo-European *upér Proto-Italic *super Latin super Latin super-lbor. English super- Proto-Indo-European *h₂eḱ-der.? Ancient Greek ὀξύς (oxús) Proto-Indo-European *ǵenh₁- Proto-Indo-European *-os Proto-Indo-European *ǵénh₁os Proto-Hellenic *génos Ancient Greek γένος (génos) French oxygène Latin acidusbor. French acide blend French oxidebor. English oxide English superoxide From super- + oxide.

1. A peroxide
2. The univalent anion, O₂⁻, obtained from molecular oxygen by adding an electron; any compound containing this anion