A polymer of styrene that is a rigid, transparent thermoplastic with good physical and electrical insulating properties, used in molded products, foams, and sheet materials.
  U.S. Dept. of Energy, Energy Information Administration's Energy Glossary
(see Foam Insulation)

Energy terms . 2014.

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  • polystyrène — [ pɔlistirɛn ] n. m. • 1936; de poly et styrène ♦ Matière plastique obtenue par polymérisation du styrène. Panneau isolant en polystyrène expansé. ● polystyrène nom masculin Polymère du styrène, de formule générale . polystyrène n. m. CHIM… …   Encyclopédie Universelle

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  • polystyrene — (n.) 1927, so called because it is a POLYMER (Cf. polymer) of STYRENE (Cf. styrene) …   Etymology dictionary

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  • polystyrene — /pol ee stuy reen, stear een/, n. Chem. a clear plastic or stiff foam, a polymer of styrene, used chiefly as an insulator in refrigerators and air conditioners. [1925 30; POLY + STYRENE] * * * ▪ chemical compound       an important member of the… …   Universalium

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