fi·ber·glass
ˈfī-bər-ˌglas 
1
: glass in fibrous form used in making various products (such as glass wool for insulation)
2
: a composite structural material of plastic and fiberglass
fiberglassed; fiberglassing; fiberglasses
: to protect or repair by applying fiberglass
Examples of fiberglass in a Sentence
Recent Examples on the Web
Mary Cornetta, Better Homes & Gardens, 29 June 2025
Sunlight does considerable preparation around the body of Volkswagen's full-size Crafter van, starting by installing its own special fiberglass high roof.
—New Atlas, 21 June 2025
Melissa Repko, CNBC, 15 May 2025
Many mattress manufacturers switched to fiberglass as an alternative.
—Anna Giorgi, Verywell Health, 3 Sep. 2024
See All Example Sentences for fiberglass
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Noun
However, vinyl and fiberglass pool liners should never be pressure-washed because the jet can easily puncture or weaken these materials.
—Mary Cornetta, Better Homes & Gardens, 29 June 2025
Sunlight does considerable preparation around the body of Volkswagen's full-size Crafter van, starting by installing its own special fiberglass high roof.
—New Atlas, 21 June 2025
Verb
Suppliers have shifted from materials like aluminum, which faces tariffs, to fiberglass.
—Melissa Repko, CNBC, 15 May 2025
Many mattress manufacturers switched to fiberglass as an alternative.
—Anna Giorgi, Verywell Health, 3 Sep. 2024
See All Example Sentences for fiberglass
Cite this Entry
“Fiberglass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fiberglass. Accessed 14 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share