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

Recent Examples on the Web

Polyethylene and polypropylene exposure led to more ROS formation. — Corinne Purtill, Los Angeles Times, 17 Oct. 2026

Scientists tested six common plastics—polyethylene, polypropylene, polystyrene, PVC, PET, and acrylic—and all of them generated radicals. — Jacek Krywko, ArsTechnica, 15 Oct. 2026

Min and his colleagues examined various microplastics—including polystyrene, polyethylene, polyvinyl chloride, polypropylene and polyethylene terephthalate. — Payal Dhar, Scientific American, 14 Oct. 2026

The most water-repelling plastics, polyethylene and polypropylene, were the most reactive, and PET and acrylic were the least reactive. — Emily Kay Votruba, EverydayHealth.com, 14 Oct. 2026

Word History

First Known Use

1935, in the meaning defined above

Rhymes for polypropylene

• acetylcysteine
• antisubmarine
• dichlorobenzene
• dimethylamine
• diphenylamine
• ethanolamine
• hydroxylamine
• isobutylene
• isoleucine
• mercaptopurine
• methylcholanthrene
• norepinephrine