polystyrene

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noun poly·sty·rene \ˌpä-lē-ˈstī-ˌrēn\

Definition of polystyrene

  1. :  a polymer of styrene; especially :  a rigid transparent thermoplastic that has good physical and electrical insulating properties and is used especially in molded products, foams, and sheet materials

Recent Examples of polystyrene from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polystyrene.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of polystyrene

1927


Medical Dictionary

polystyrene

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noun poly·sty·rene \ˌpäl-i-ˈstī(ə)r-ˌēn\

Medical Definition of polystyrene

  1. :  a polymer of styrene; especially :  a rigid transparent thermoplastic that has good physical and electrical insulating properties and is used especially in molded products, foams, and sheet materials



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