Putting an END to the debate
 

acetylseryltyrosylserylisoleucylthreonylserylproly lserylglutaminyl-
phenylalanylvalylphenylalanylleucylserylserylvalyl tryptophylalanyl-
aspartylprolylisoleucylglutamylleucylleucylasparag inylvalylcysteinyl-
threonylserylserylleucylglycylasparaginylglutaminy lphenylalanyl-
glutaminylthreonylglutaminylglutaminylalanylarginy lthreonylthreonyl-
glutaminylvalylglutaminylglutaminylphenylalanylser ylglutaminylvalyl-
tryptophyllysylprolylphenylalanylprolylglutaminyls erylthreonylvalyl-
arginylphenylalanylprolylglycylaspartylvalyltyrosy llysylvalyltyrosyl-
arginyltyrosylasparaginylalanylvalylleucylaspartyl prolylleucylisoleucyl-
threonylalanylleucylleucylglycylthreonylphenylalan ylaspartylthreonyl-
arginylasparaginylarginylisoleucylisoleucylglutamy lvalylglutamyl-
asparaginylglutaminylglutaminylserylprolylthreonyl threonylalanylglutamyl-
threonylleucylaspartylalanylthreonylarginylarginyl valylaspartylaspartyl-
alanylthreonylvalylalanylisoleucylarginylserylalan ylasparaginylisoleucyl-
asparaginylleucylvalylasparaginylglutamylleucylval ylarginylglycyl-
threonylglycylleucyltyrosylasparaginylglutaminylas paraginylthreonyl-
phenylalanylglutamylserylmethionylserylglycylleucy lvalyltryptophyl-
threonylserylalanylprolylalanylserine


Longest existing English word

actually the longest word is the plural of that word acetylseryltyrosylserylisoleucylthreonylserylproly lserylglutaminyl-
phenylalanylvalylphenylalanylleucylserylserylvalyl tryptophylalanyl-
aspartylprolylisoleucylglutamylleucylleucylasparag inylvalylcysteinyl-
threonylserylserylleucylglycylasparaginylglutaminy lphenylalanyl-
glutaminylthreonylglutaminylglutaminylalanylarginy lthreonylthreonyl-
glutaminylvalylglutaminylglutaminylphenylalanylser ylglutaminylvalyl-
tryptophyllysylprolylphenylalanylprolylglutaminyls erylthreonylvalyl-
arginylphenylalanylprolylglycylaspartylvalyltyrosy llysylvalyltyrosyl-
arginyltyrosylasparaginylalanylvalylleucylaspartyl prolylleucylisoleucyl-
threonylalanylleucylleucylglycylthreonylphenylalan ylaspartylthreonyl-
arginylasparaginylarginylisoleucylisoleucylglutamy lvalylglutamyl-
asparaginylglutaminylglutaminylserylprolylthreonyl threonylalanylglutamyl-
threonylleucylaspartylalanylthreonylarginylarginyl valylaspartylaspartyl-
alanylthreonylvalylalanylisoleucylarginylserylalan ylasparaginylisoleucyl-
asparaginylleucylvalylasparaginylglutamylleucylval ylarginylglycyl-
threonylglycylleucyltyrosylasparaginylglutaminylas paraginylthreonyl-
phenylalanylglutamylserylmethionylserylglycylleucy lvalyltryptophyl-
threonylserylalanylprolylalanylserines

Sorry but....why is this a debate again?

I guess you didn't attend the "smart" classes growing up mega. Supercalifragalisticespalidocious and antidisestablishmentarianism were always something kids in my class argued over.

Ok sweet, but what does it MEAN?

It describes the makeup of a chemical.