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WordReference Random House Unabridged Dictionary of American English © 2024pol•y•tet•ra•fluor•o•eth•y•lene (pol′ē te′trə flŏŏr′ō eth′ə lēn′, -flôr′-, -flōr′-),USA pronunciation n. [Chem.]- Chemistryany polymer, plastic, or resin having the formula (C2F4)n, prepared from tetrafluoroethylene, noted for its slippery, nonsticking properties, and used in the manufacture of gaskets, electrical insulation, tubing, candy molds, container linings, frying-pan coatings, etc.
- poly- + tetrafluoroethylene 1945–50
Collins Concise English Dictionary © HarperCollins Publishers:: polytetrafluoroethylene /ˌpɒlɪˌtɛtrəˌflʊərəʊˈɛθɪˌliːn/ n - a white thermoplastic material with a waxy texture, made by polymerizing tetrafluoroethylene. It is nonflammable, resists chemical action and radiation, and has a high electrical resistance and an extremely low coefficient of friction. It is used for making gaskets, hoses, insulators, bearings, and for coating metal surfaces in chemical plants and in nonstick cooking vessels
Abbreviation: PTFE
Also called (trademark): Teflon
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