Longest Word in the English Language

Methionylglutaminylarginytyrosylglutamylserylleucylphenylalanylalanylglut-
aminylleucyllysylglutamylarginyllysylglutamylglycylalanylphenylalanyvalyl-
prolylphenylalanylvalythreonylleucylglycylaspartylprolyglycylisoleucylglut-
amylglutaminylserylleucyllysylisoleucylaspartylthreonylleucylisoleucylglut-
amylalanylglycylalanylaspartylalanylleucylglutamylleucylglycylglycylisoleu-
cylprolylphenylalanylserylaspartylprolylleucelalanylaspartyglycylprolythreo-
nylisoleucylglutamiylasparaginylalanylthreonylleucylarginylalanylphenylalan-
ylalanylglycylvalyltheonylprolylalanylglutaminylcysteinylphenylalanygllutam-
ylmethionylleucyalanylleucylisoleucylarginylglutaminyllysylhistidylprolylthre-
onylisoleucylpriIylisoleucylglycylleucylleucylmethionyltyrosylalanylasparag-
inylleucylvalyphenylalanylasparaginyllysylgyycylisoleucylaspartylglutamylph-
enylalanyltyrosylalanylgutaminyllcysteinylglutamyllysylvalylglycylavlylaspart-
ylserylvalylleucylvalylalanylaspartylvalyprolylvalylglutaminylglutamyllserylal-
anyprolyphenylalanylarginylglutaminylalanylalanylleucylarginylhistidylaspara-
ginylvaylalanylprolylisoleucylphenylalanylisoleucylcysteinylprolylprolylaspart-
ylalanylaspartylaspartylaspartylleucylleucylarginyglutaminylisoleucylalanyyls-
eryltyrosylglycylarginylglycyltyrosylthreonyltyrosylleucylleucylserylarginylal-
anylglycylvalythreonylglycylalanylglutamylasparaginylarginylanylalanylleucyl-
prolylleucylaspaaginylhistidylleucylvaylalanyllysylleucyllysylglutamyltyrosyla-
saraginylglycylphenylalanylglycylisoleucylalanylprolylaspartylglutaminylvalyl-
lysylalanylalanylisoleucylaspartylalanylalanyglycylalanylalanyglycylalanylisol-
eucylserylglycyserylalanylisoleucylbalyllsylisoleucylisoleucylglutamyyylgluta-
minylhistidylasparaginylisoleucylglutamylprolyglutamyllysylmethionylleucyla-
lanylalanylleucyllysylvalylphenylalabylvalylglutaminlylprolylmethionyllysylala-
nylalanylthreonylarginylserine

Definition: It's the scientific name for Typtophan synthetase, which is a protein containing 267 amino acids. This long word contains 1,846 letters. But I didn't type this whole word, there is an easy way to do it. But good thing it didn't have One Googol letters. And One Googol is a very large number and here it is, 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000. And this time I typed it!