acetylseryltyrosylserylisoleucylthreonylserylprolylserylglutaminylphenylalanylvalylphenylalanylleucylserylserylvalyltryptophylalanylaspartylprolylisoleucylglutamylleucylleucylasparaginylvalylcysteinylthreonylserylserylleucylglycylasparaginylglutaminylphenylalanylglutaminylthreonylglutaminylglutaminylalanylarginylthreonylthreonylglutaminylvalylglutaminylglutaminylphenylalanylserylglutaminylvalyltryptophyllysylprolylphenylalanylprolylglutaminylserylthreonylvalylarginylphenylalanylprolylglycylaspartylvalyltyrosyllysylvalyltyrosylarginyltyrosylasparaginylalanylvalylleucylaspartylprolylleucylisoleucylthreonylalanylleucylleucylglycylthreonylphenylalanylaspartylthreonylarginylasparaginylarginylisoleucylisoleucylglutamylvalylglutamylasparaginylglutaminylglutaminylserylprolylthreonylthreonylalanylglutamylthreonylleucylaspartylalanylthreonylarginylarginylvalylaspartylaspartylalanylthreonylvalylalanylisoleucylarginylserylalanylasparaginylisoleucylasparaginylleucylvalylasparaginylglutamylleucylvalylarginylglycylthreonylglycylleucyltyrosylasparaginylglutaminylasparaginylthreonylphenylalanylglutamylserylmethionylserylglycylleucylvalyltryptophylthreonylserylalanylprolylalanylserine:

is the chemical name for Coat Protein, Tobacco Mosaic Virus, Dahlemense Strain.

(you can only see a portion of the word however it is 1185 letters long! click on it you will see. Good luck pronouncing it)

Supercallifragilisticexpealadocious — and if you ever saw Julie Andrews in the movie, you know what it means.

antidisestablishmentarianism: opposition to the withdrawal of state support or recognition from an established church

I don’t “know” any words, but I use a lot of them.

pneumonoultramicroscopicsilicovolcanoconiosis.

It’s a lung disease.

pneu

mono

ultra

microscopic

silico

volcano

coniosis

Put all those together from top to bottom.

supercalafragilesticexpealidoshus …. if you say in long enough it always sounds precocious