polypropylene
noun
poly·pro·pyl·ene
ˌpä-lē-ˈprō-pə-ˌlēn 
: any of various thermoplastic plastics or fibers that are polymers of propylene
Examples of polypropylene in a Sentence
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Developed by researchers from Adelaide University, the method is a universal and scalable to upcycle common plastics — including PET, PVC, polyethylene and polypropylene and their mixtures — into single-atom catalysts (SACs).
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Prabhat Ranjan Mishra, Interesting Engineering, 27 Oct. 2025
And while the screw-on cap is comprised of BPA-free, durable, and food-safe polypropylene, Brandon recommends always hand-washing the tops and not leaving them out in the sun, as UV light can break down even the best plastics.
—Clay Abney, Travel + Leisure, 20 Oct. 2025
The Recyclable Plastic Bag Alliance warned the ban would trigger an increase in thin non-woven polypropylene, or NWPP, bags, which would lead to additional plastic usage.
—Kate Wolffe, Sacbee.com, 17 Oct. 2025
When not in use, the whole shebang packs down into a polypropylene case measuring 25 inches long by 18 in wide by 13 in high (635 by 457 by 330 mm) and tipping the scales at 19.4 lb (8.8 kg), gear not included.
—New Atlas, 2 Oct. 2025
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Prabhat Ranjan Mishra, Interesting Engineering, 27 Oct. 2025
And while the screw-on cap is comprised of BPA-free, durable, and food-safe polypropylene, Brandon recommends always hand-washing the tops and not leaving them out in the sun, as UV light can break down even the best plastics.
—Clay Abney, Travel + Leisure, 20 Oct. 2025
The Recyclable Plastic Bag Alliance warned the ban would trigger an increase in thin non-woven polypropylene, or NWPP, bags, which would lead to additional plastic usage.
—Kate Wolffe, Sacbee.com, 17 Oct. 2025
When not in use, the whole shebang packs down into a polypropylene case measuring 25 inches long by 18 in wide by 13 in high (635 by 457 by 330 mm) and tipping the scales at 19.4 lb (8.8 kg), gear not included.
—New Atlas, 2 Oct. 2025
See All Example Sentences for polypropylene
Cite this Entry
“Polypropylene.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polypropylene. Accessed 30 Oct. 2025.
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