fluorothene

\\ˈflu̇rəˌthēn, ˈflōr-, ˈflȯr-\ noun (-s)

Etymology: fluor- + -thene (from ethylene)

: any of various chemically inert insoluble plastics and resins made by polymerizing a derivative CF₂:CFCl of ethylene containing three atoms of fluorine and one of chlorine