# plexiglass

> English word · Noun · frequency rank #67,738

## Definitions
1. polymethyl methacrylate (polymer of methyl methacrylate), a tough transparent plastic used sometimes in lieu of glass.

## Etymology
Borrowed from German Plexiglas, a trademark.

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