: any of various thermoplastic plastics or fibers that are polymers of propylene

Examples of polypropylene in a Sentence

Recent Examples on the Web
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Unifi specializes in recycled polyester yarn under the Repreve brand, Avgol makes nonwoven polypropylene fiber. Arthur Zaczkiewicz, Footwear News, 31 July 2026 Choose ones made from BPA-free, odorless, and chemically inert polypropylene. Mary Marlowe Leverette, Southern Living, 18 July 2026 When coated onto a polypropylene separator with graphene, the material formed a thin interfacial layer that readily absorbed electrolyte while suppressing polysulfide migration. Neetika Walter, Interesting Engineering, 3 July 2026 The Helix is made from recycled polypropylene, with the company focused on reducing waste that comes from upsizing pots as a plant outgrows its surroundings. New Atlas, 2 July 2026 See All Example Sentences for polypropylene

Word History

First Known Use

1935, in the meaning defined above

Time Traveler
The first known use of polypropylene was in 1935

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Cite this Entry

“Polypropylene.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polypropylene. Accessed 5 Aug. 2026.

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