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polystyrene
noun
poly·sty·rene
ˌpä-lē-ˈstī-ˌrēn
: 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
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
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Word History
First Known Use
1927, in the meaning defined above
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
: 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
: 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
More from Merriam-Webster on polystyrene
Nglish: Translation of polystyrene for Spanish Speakers
Britannica.com: Encyclopedia article about polystyrene
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