# protoxide

> English word · Noun

## Definitions
1. Any of a series of oxides of a particular metal that has the fewest atoms of oxygen per molecule

## Etymology
From prot- + oxide.

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