glass-wool

A worker installs glass-wool insulation in an attic.

Definition

1. Noun:
   • A fibrous material made from glass: "glass-wool" refers to a material composed of thin, flexible fibers of glass, typically used for insulation, filtration, or soundproofing. It is also known as fiberglass wool.

Usage Examples

• (A fibrous glass material used for thermal insulation.)
• (Safety precautions for a material that can irritate the lungs.)
• (A practical application in scientific settings.)

Advanced Usage

• "to be made of glass-wool": to be constructed from this material.

  • The soundproof panels are made of glass-wool. (The panels use glass fibers to reduce noise transmission.)

• "glass-wool insulation": a specific type of insulation using this material.

  • Glass-wool insulation is popular in construction for its fire-resistant properties. (It is chosen for safety and efficiency.)

Variants and Related Words

• Glass wool (n, alternative spelling): same as "glass-wool," often written as two words.

  • They installed glass wool in the walls for better energy efficiency. (Same material, different spelling.)

• Fiberglass (n): a broader term for glass-reinforced plastic; sometimes used loosely for glass-wool.

  • Fiberglass is used in boat hulls, but glass-wool is a different form. (Distinction between materials.)

Synonyms

• Fiberglass wool: a synonym emphasizing the fiber form.
• Glass fiber: a more general term for glass in fiber form, though not always matted into wool.

Phrasal Verbs

• (None commonly associated with "glass-wool" as a noun; it is typically used as a material name.)

Related Idioms

• (No idioms directly use "glass-wool"; it is a technical term without figurative uses.)