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
Noun
Rather, they are formed out of fiberglass and decorated with acrylic paint, a contemporary twist on old-school craft that makes the works durable in an outdoor setting like the botanic garden. Ray Mark Rinaldi, The Denver Post, 3 June 2024 Plaques were stolen from the fountain and had to be recreated with a fiberglass material made to look like brass, Cotten said. Caroline Zimmerman, Kansas City Star, 1 June 2024
Verb
Then fiberglass the exterior plywood panel seams. Andy Cochrane, Popular Mechanics, 2 Sep. 2021 Nonskid deck wax is similar to fiberglass waxes but is specifically for boats with nonskid decking. Max Inchausti, Field & Stream, 9 Jan. 2023 See all Example Sentences for fiberglass 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'fiberglass.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 11 Jun. 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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