[ 'tɛflɒn ]
■ noun
1》 trademark a tough synthetic resin made by polymerizing tetrafluoroethylene, used to coat non-stick cooking utensils and to make seals and bearings. Also called polytetrafluoroethylene .
2》 [as modifier ] informal denoting someone whose reputation remains undamaged in spite of scandal or misjudgement.
Origin
1940s: from tetra- + fluoro- + -on on the pattern of words such as nylon and rayon .