learn the longest word in the english language

As the largest known protein, titin also has the longest IUPAC name. The full chemical name, containing 189,819 letters, is sometimes stated to be the longest word in the English language.However, professional dictionary writers regard generic names of chemical compounds as verbal formulae rather than as English words.

Here it goes…

Methionylthreonylthreonylglutaminylarginyltyrosylglutamylserylleucylph
enylalanylalanylglutaminylleucyllysylglutamylarginyllysylglutamylglycy
lalanylphenylalanylvalylprolylphenylalanylvalylthreonylleucylglycyla
spartylprolylglycylisoleucylglutamylglutaminylserylleucyllysylisoleu
cylaspartylthreonylleucylisoleucylglutamylalanylglycylalanylaspartyl
alanylleucylglutamylleucylglycylisoleucylprolylphenylalanylserylaspa
rtylprolylleucylalanylaspartylglycylprolylthreonylisoleucylglutaminy.

wow.

I have learned it, learned to spell it, learned to say it, and learned the definition.