单词	polystyrene
释义	polystyrenepol‧y‧sty‧rene /ˌpɒlɪˈstaɪriːn◂ $ ˌpɑː-/ noun [uncountable] Word Origin WORD ORIGINpolystyrene Origin: 1900-2000 poly- + styrene type of chemical compound (19-21 centuries) (from Latin styrax type of plant) Examples EXAMPLES FROM OTHER DICTIONARIES polystyrene cups EXAMPLES FROM THE CORPUS Approximate measurements of the enthalpy change for reactions in solution can be made using a simple calorimeter such as a polystyrene beaker. Cesar lifted the polystyrene garden of Red Riding Hood, dropped it to the floor and put his foot through it. Felt pretty chipper, as we scraped together enough coins to buy a shared polystyrene cup of milky tea. I will use a wooden shed lined with polystyrene, possibly with one double-glazed window in the roof. In houses particularly prone to condensation, you can cover walls with a thin layer of polystyrene before applying wallpaper. The recycling of polystyrene, for instance, requires temperatures above 200C and the materials are extensively filtered during the procedure. Thus atactic polystyrene is amorphous but isotactic polystyrene is semi-crystalline. word sets WORD SETS► Plastics Perspex, nounplastic, nounplastic explosive, nounPlexiglas, nounpolyethylene, nounpolypropylene, nounpolystyrene, nounpolythene, nounpolyurethane, nounresin, nounthermoplastic, nounthermosetting, adjective British English a soft light plastic material that prevents heat or cold from passing through it, used especially for making containers
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