Definition

1. Noun:
   • A fibrous, wool-like insulating material: "glass wool" is a substance made from extremely fine, intertwined fibers of glass. These fibers are massed together into a lightweight, flexible material that resembles wool in appearance and texture. Its primary function is to provide thermal and acoustic insulation.

Usage

• Glass wool is used as a mass noun. It refers to the material itself, not individual pieces.
• It is commonly found in construction and industrial applications for insulating walls, roofs, and pipes.

Examples

• Noun:
  • The attic was insulated with a thick layer of glass wool to keep the house warm in winter.
  • When handling glass wool, it is important to wear protective gloves and a mask to avoid irritation.

Advanced Usage

• As a component: Glass wool is often a core component within other products.
  • The acoustic panels contained a dense core of glass wool to absorb sound.

Variants and Related Words

• Fiberglass (Fibreglass) (noun): A broader category of materials containing fine glass fibers, often used interchangeably with "glass wool" in casual contexts, though fiberglass can also refer to rigid composites.
• Mineral wool (noun): A similar insulating material made from rock or slag fibers, serving a comparable purpose to glass wool.

Synonyms

• Fiberglass insulation: A direct synonym highlighting its most common use.
• Glass fiber insulation: A more technical synonym describing its composition.

Noun

1. glass fibers spun and massed into bundles resembling wool