# trioxide

> English word · Noun · IPA /trʌɪˈɒksʌɪd/ · frequency rank #91,086

## Definitions
1. Any oxide containing three oxygen atoms in each molecule.
2. Any organic compound of general formula R-OOO-R', derived from trioxidane.

## Etymology
From tri- + oxide.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/trioxide