fiberglass

1 of 2

noun

fi·​ber·​glass ˈfī-bər-ˌglas How to pronounce fiberglass (audio)
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

fiberglass

2 of 2

verb

fiberglassed; fiberglassing; fiberglasses

transitive verb

: to protect or repair by applying fiberglass

Examples of fiberglass in a Sentence

Recent Examples on the Web
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Noun
Christian Ortega, a union representative of Local 6, said members are also unhappy with the safety and working conditions in the production plant, adding that workers are exposed to fiberglass particles and pigeon feces. Hema Sivanandam, The Mercury News, 18 Sep. 2024 McQueen said the fiberglass body, which uncannily resembles a Ferrari Enzo with a 130-in (3,302-mm) wheelbase, took him five years to craft from scratch. New Atlas, 16 Sep. 2024
Verb
Many mattress manufacturers switched to fiberglass as an alternative. Anna Giorgi, Verywell Health, 3 Sep. 2024 Then fiberglass the exterior plywood panel seams. Andy Cochrane, Popular Mechanics, 2 Sep. 2021 See all Example Sentences for fiberglass 

Word History

First Known Use

Noun

1937, in the meaning defined at sense 1

Verb

1967, in the meaning defined above

Time Traveler
The first known use of fiberglass was in 1937

Dictionary Entries Near fiberglass

Cite this Entry

“Fiberglass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fiberglass. Accessed 23 Nov. 2024.

Kids Definition

fiberglass

noun
fi·​ber·​glass
-ˌglas
: glass in the form of fibers used in making various products (as yarn, insulation, or boats)

More from Merriam-Webster on fiberglass

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