polystyrene

noun

poly·​sty·​rene ˌpä-lē-ˈstī-ˌrēn How to pronounce polystyrene (audio)
: 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

Examples of polystyrene in a Sentence

Recent Examples on the Web
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The scientists then processed those styrenes and the reclaimed carbon black particles, turning them back into solid polystyrene. Ben Coxworth, New Atlas, 25 Nov. 2024 Art in which long pieces of polystyrene were dangled in such a way that a stream of compressed air made the surface move the polystyrene dance (a recreation of which can be seen at the present exhibition). Tom Teicholz, Forbes, 21 Oct. 2024 The plastics most commonly used in packaging are polyethylene (of various densities), polypropylene (PP), polyethylene terephthalate (PET) and, to a lesser extent, polystyrene (PS) and polyvinyl chloride (PVC). Alex Whiting, WIRED, 20 May 2022 Seeking a way to put all that polystyrene waste to use, researchers at the Royal Melbourne Institute of Technology (RMIT), in collaboration with Riga Technical University in Latvia, have invented a thin patch made out of multiple layers of the material. Michael Franco, New Atlas, 29 Oct. 2024 See all Example Sentences for polystyrene 

Word History

First Known Use

1927, in the meaning defined above

Time Traveler
The first known use of polystyrene was in 1927

Dictionary Entries Near polystyrene

Cite this Entry

“Polystyrene.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polystyrene. Accessed 30 Nov. 2024.

Kids Definition

polystyrene

noun
poly·​sty·​rene ˌpäl-i-ˈstī(ə)r-ˌēn How to pronounce polystyrene (audio)
: a stiff transparent plastic used chiefly in molded products, foams, and sheet materials

Medical Definition

polystyrene

noun
poly·​sty·​rene ˌpäl-i-ˈstī(ə)r-ˌēn How to pronounce polystyrene (audio)
: 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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