polytetrafluoroethylene

noun
poly·​tet·​ra·​flu·​or·​o·​eth·​yl·​ene | \ ˌpäl-i-ˌte-trə-ˌflu̇(-ə)r-ō-ˈeth-ə-ˌlēn How to pronounce polytetrafluoroethylene (audio) \

Medical Definition of polytetrafluoroethylene

: a polymer of tetrafluoroethylene (CF2−CF2)n that is a resin with good resistance to chemicals and heat and that is used to fabricate prostheses abbreviation PTFE — see teflon