# perspex

> English word · Noun · frequency rank #71,001

## Definitions
1. Any tough, transparent plastic that is used instead of glass for windows.

## Etymology
From the proprietary name Perspex.

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