# Retr0bright

> English word · Noun

## Definitions
1. A chemical mixture, mainly hydrogen peroxide, used to remove yellowing from ABS plastic computer and electronics cases.

## Etymology
From retro- + bright with 0 for o as in leetspeak. See retrocomputing.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/retr0bright