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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
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 First, a single layer of polystyrene beads is arranged in a hexagonal pattern on a quartz substrate. New Atlas, 16 Oct. 2024 And another!) and dialogue that works like polystyrene stuffing, filling the cracks with Modi’s half-baked musings on the happy lives of pigeons or long quotes from Charles Baudelaire, poet and patron saint of dissipation. Stephanie Bunbury, Deadline, 24 Sep. 2024 If the products are contaminated with other plastics, such as PVC or polystyrene, the outcome isn’t good. Tribune News Service, The Mercury News, 14 Sep. 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 24 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

More from Merriam-Webster on polystyrene

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!