polytetrafluoroethylene

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

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

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