polystyrene Hear it!

polystyrene definition

poly·sty·rene (päl′i stī′rēn′)

noun

a tough, clear, colorless plastic material, a polymer of styrene, used to make chemical apparatus, containers, etc.

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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