escaping or entering O Good insulation saves energy. 2. materials used to insulate some- thing O The previous owners had used straw in the roof for insulation.

any of a large class of siloxanes that are unusually stable over a wide range of temperatures; used in lubricants and adhesives and coatings and synthetic rubber and electrical insulation

The lightweight elastic outer bark of the cork oak, used especially for bottle closures, insulation, floats, and crafts, Something made of cork, especially a bottle stopper, A bottle stopper made of other material, such as plastic, A bottle stopper made from this or any other material, An angling float, also traditionally made of oak cork

A short coat usually extending to the hips, An outer covering or casing, especially, The skin of a potato, An insulation covering for a steam pipe, wire, boiler, or similar part