noun ·4 syllables ·Rare ·Advanced level

Definitions

Noun

1. 1
   A peroxide
2. 2
   the univalent anion O2- wordnet
3. 3
   The univalent anion, O₂⁻, obtained from molecular oxygen by adding an electron; any compound containing this anion
4. 4
   a metallic oxide containing the univalent anion O2- wordnet

Synonyms

All synonyms

superoxide anion

Etymology

From super- + oxide.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.