from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Fine-spun fibers of glass used especially for insulation and in air filters.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An insulating material, made from fiberglass, arranged into a texture similar to wool.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. glass fibers spun and massed into bundles resembling wool


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