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
Howard Walker, Robb Report, 16 Mar. 2026
Pergola kits tend to be for fiberglass or metal pergolas made of slimmer, lightweight materials like aluminum.
—Melissa Minton, Architectural Digest, 10 Mar. 2026
Melissa Locker, Southern Living, 15 Mar. 2026
Suppliers have shifted from materials like aluminum, which faces tariffs, to fiberglass.
—Melissa Repko, CNBC, 15 May 2025
See All Example Sentences for fiberglass
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Noun
There are also four Minilites, some brake rotors, Bilstein shocks, and a fiberglass front bumper.
—Howard Walker, Robb Report, 16 Mar. 2026
Pergola kits tend to be for fiberglass or metal pergolas made of slimmer, lightweight materials like aluminum.
—Melissa Minton, Architectural Digest, 10 Mar. 2026
Verb
Baking soda shouldn't be mixed with ammonia, bleach, alcohol, or chemical cleaners due to dangerous reactions, and should be used with care on glass, leather, marble, or fiberglass to avoid damage.
—Melissa Locker, Southern Living, 15 Mar. 2026
Suppliers have shifted from materials like aluminum, which faces tariffs, to fiberglass.
—Melissa Repko, CNBC, 15 May 2025
See All Example Sentences for fiberglass
Cite this Entry
“Fiberglass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fiberglass. Accessed 19 Mar. 2026.
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