Fiberglass (noun)

1. A type of strong, lightweight material made from very thin fibers of glass that are woven together.
2. A material made by embedding glass fibers in a plastic or resin matrix.
3. A material used in construction, insulation, and many other applications because of its strength, durability, and insulation properties.

Origin:

A blend of the words "fiber" and "glass" from the late 19th century.

Examples:

1. The boat was made of fiberglass.
2. The new car body is made of fiberglass reinforced plastic.
3. Fiberglass insulation is widely used in construction industry.
4. The statue was made of fiberglass.
5. The broken window was replaced with a fiberglass one.