Polypropylene is a strong, flexible artificial material that is used to make things such as rope, carpet, and pipes.
polypropylene in British English
(ˌpɒlɪˈprəʊpɪˌliːn)
noun
any of various tough flexible synthetic thermoplastic materials made by polymerizing propylene and used for making moulded articles, laminates, bottles, pipes, and fibres for ropes, bristles, upholstery, and carpets
Systematic name: polypropene
polypropylene in American English
(ˌpɑlɪˈproʊpəˌlin)
noun
polymerized propylene, a very light, highly resistant, thermoplastic resin used to make coatings, plastic pipe, packaging material, fibers for clothing fabrics, etc.