- noun a type of plastic used to make artificial fibres, bottles, pipes, and other articles, which is not degradable and must be recycled or destroyed by incineration
Cars & Driving
- noun an extremely versatile plastic, available in many grades and also as a copolymer (ethylene/propylene).
- A tough plastic with good resistance to heat and chemicals. Polypropylene is a polymer of propylene, and is found in everything from packaging to molded automobile parts.