any of several thermoplastic resins, (CH), made by the polymerization of ethylene: used in making translucent, lightweight, and tough plastics, films, containers, insulation, etc.
See polyethylene in American Heritage Dictionary 4
(pŏlˌē-ĕthˈə-lēnˌ)
noun
A polymerized ethylene resin, used especially for containers, kitchenware, and tubing, or in the form of films and sheets for packaging.