# fibreglass

> English word · Noun · IPA /ˈfaɪbəɡlɑːs/ · frequency rank #51,112

## Definitions
1. Silica based glass extruded into fibers that possess a length at least 1000 times greater than their width.
2. Ellipsis of fibreglass wool.
3. A composite material made from fine fibres of spun glass held together with resin.

## Etymology
Compound of fibre + glass.

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