what is the longest name?

if it is any word the answer is smile (just joking),  is think polytetrafluorethelene ( according to me ).

the correct spelling is polytetrafuloroethylene. it is a tough translucent polymer resistant to chemical action and with low coefficient of friction.     I told that the answer is correct as far as i know.

Acc. to me, it is AAbul paakir jenul abadin kalam.

polytetrafuloroethylene

polytetrafuloroethylene