fiber glass

fiberglass

[fahy-ber-glas, -glahs]
noun
1.
a material consisting of extremely fine filaments of glass that are combined in yarn and woven into fabrics, used in masses as a thermal and acoustical insulator, or embedded in various resins to make boat hulls, fishing rods, and the like.
verb (used with object)
2.
to cover or form with fiberglass.
verb (used without object)
3.
to use or work with fiberglass.
Also, fiber glass.


Origin:
1935–40, Americanism; fiber + glass

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
fiberglass   (fī'bər-glās')  Pronunciation Key 
A material made up of very fine fibers of glass. Fiberglass is resistant to heat and fire and is used to make various products, such as building insulation and boat hulls. Because the fibers in fiberglass are capable of transmitting light around curves, fiberglass is an important component of fiber optics.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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