noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   any oxide having eight oxygen atoms in each molecule or unit cell

Etymology

From oct- + oxide.

Related phrases

dichlorine octoxidetetraphosphorus octoxidetrisulfur octoxidetriuranium octoxideuranium octoxide

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