fiberglass

F4I1B3E1R1G2L1A1S1S1

A form of fibreglass — Silica based glass extruded into fibers that possess a length at least 1000 times greater than their width.

Similar
fibreglass
Less commonScrabble 16
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounfiberglass (usually uncountable, plural fiberglasses)

plural fiberglasses

  1. USalternativeuncountableusuallyAlternative form of fibreglass.
    1 more example

    This is lovely Miraflex brand fiberglass made by Dow Corning years ago. I insulated a whole house with it and loved the way it didn't make me itch. It feels super-soft. To be honest, though, it does actually cause some itching eventually—but nothing like regular fiberglass. For some reason, they stopped making it, and if anyone knows why, I'd love to know.

    2014, Theodore Gray, photography by Nick Mann, Molecules: The Elements and the Architecture of Everything, Paperback 2018 Edition, page 135
verbfiberglass (third-person singular simple present fiberglasses, present participle fiberglassing, simple past and past participle fiberglassed)

present singular third person fiberglasses · participle present fiberglassing · participle past fiberglassed · past fiberglassed

  1. USalternativeAlternative form of fibreglass.

Synonyms & antonyms

nouna covering material made of glass fibers in resins

Similar
fibreglass
Broader
covering material
Also see
fibreglassglass wool

Synonym sets from Open English WordNet, CC BY 4.0.

Rhymes & wordplay

Anagrams

fibreglass
Cite this entry
APA

fiberglass. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/fiberglass

MLA

“fiberglass.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/fiberglass. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “fiberglass,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/fiberglass.

Source: fiberglass on Wiktionary, CC BY-SA 4.0.