Main Entry: poly·eth·yl·ene

Pronunciation: \ˌpäl-ē-ˈeth-ə-ˌlēn\

Function: noun

: a polymer of ethylene ; especially : any of various lightweight thermoplastics (CH₂CH₂)_x that are resistant to chemicals and moisture and are used especially in packaging, insulation, surgical implants, prostheses, and tubing