insulation

Material that stops heat or electricity from passing through something.

• We put insulation in the roof.
• The wire’s insulation was damaged.
• Workers installed thick insulation between the walls.

Similar words: insulating material

Common phrases: roof insulation, foam insulation, install insulation, insulation material

The process of stopping heat, sound, or electricity from passing between things.

• Good insulation keeps heat inside.
• The room needs better insulation against sound.
• Electrical insulation prevents current from reaching the metal case.

How to use it: insulation against something (The new walls provide better insulation against noise.)

Common phrases: thermal insulation, sound insulation, electrical insulation, improve insulation