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)
: 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

Dictionary Entries Near polytetrafluoroethylene

Cite this Entry

“Polytetrafluoroethylene.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/polytetrafluoroethylene. Accessed 30 Jan. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
Spell It

Hear a word and type it out. How many can you get right?

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?