1. This is the longest word ,which contain 1913 letter,technically it's not qualified as a word but its used in the medical journal.
Methionylglutaminylarginyltyrosylglutamylserylleucylphenyl- alanylalanylglutaminylleucyllysylglutamylarginyllysylglutamyl- glycylalanylphenylalanylvalylprolylphenylalanylvalylthreonyl- leucylglycylaspartylprolylglycylisoleucylglutamylglutaminyl- serylleucyllysylisoleucylaspartylthreonylleucylisoleucylglutamy- lalanylglycylalanylaspartylalanylleucylglutamylleucylglycylisoleucyl-...
