Longest words in the English language

The list in ascending order:

9. Supercalifragilisticexpialidocious - "Wonderful" (34 letters)

Pseudoantidisestablishmentarianism - "False opposition to the withdrawl of State support from a church" or "Extreme opposition to the withdrawl of State supported church" (34 letters)

8. Hepaticocholangiocholecystentersotomies - "Gall Bladder surgery" (39 letters)

7. Pneumonoultramicroscopicsilicovolcanoconiosis - "A lung disease" (45 letters)

6. Asseocarnisanguineoviscericartilaginonervomedullary - "Structure of the human body" (51 letters)

5. Aequeosalinocalcalinosetaceoaluminosocupreovitriolic - "Spa waters at Bath, England" (52 letters)

4. Aopadotenachoselachogaleokranioleipsanodrinhipotrimmatosilphioparaomelitokatakechymenokichlepikossyphophattoperisteralektrionoptekephalliokigklopeleiolagoiosiraiovaphetraganopterygon - "The name of a 17 ingrediant Greek dish" (182 letters)

3. Ornicopytheobiblopsychocrystarroscioaerogenethliometeoroaustrohieroanthropoicichthyopyrosiderochpnomyoalectryoophiobotanopegohydrorhabdocrithoaleuroalphitohalomolybdoclerobeloaxinocoscinodactyliogeolithopessopscphocatoptrotephraoeirochiroomychodactyloarithstichooxogeloscogastrogyrocerobletonooenoscapulinaniac- "A deluded human who practices divination or forecasting" (310 letters)

2. Acetylseryltyrosylserylisoleucylthreonylserylprolylserylglutaminylphenylalanylvalylphenylalnelleucylserylserylvalyotriptophylalanylaspartylprolylisoleucylglutamylleucyllencyllasparaginylvalylcysteinythreonylserylserylleucylglycllasparatinylglutaminylphenylalanylglutaminylthreonylglutaminylglutaninylalanylarginylthrseonylthreonylglutaminylvalylglutaminyglutaninylphenylalanylserylghlutaminylvalyltryptophyllysylrolylphenylalaylprolyglutaminylserylthreonylvalylarginylphunylalanylprolylglycylaspartylvalyltyrosyllsvslvalyltyrosylargiyltyosvlasparaginylalanylvalylleusylaspartylprolylleucylisoleucylthreonylalnylleucylleucylglycyltreonylphnylalanylaspartylthreonylarginlasparaginylarginylisoleucylislleucylglutammylvalylglutamylasparaginylglutaminylglutaminylsurylprolylthreonylthreonylalanyoglutamylthreonylleucylaspartylalanylthreonylarginylarginylvalylaspartylaspartylalanylthreonylvalylalanylisoleucylarginylserylalanylasparaginylisoleucylasparaginylleucylvallasparaginylglutamylleucylvalylarginylglycylthreonylglycylleucyltyrosylasparaginylglutaminylasparaginylthreonylphenylalanylglutamylserylmethionylserylglycylleucylvalyltryptophylthreonylserylalanylprolylalanylserine- "The scientific name for the Tobacco Mosaic Virus" (1 185 letters)

1. MethionylglutaminylarginytyrosylglutamylserylleucylphenylalanylalanylglutaminylleucyllysylglutamylarginyllysylglutamylglycylalanylphenylalanyvalylprolylphenylalanylvalythreonylleucylglycylaspartylprolyglycylisoleucylglutamylglutaminylserylleucyllysylisoleucylaspartylthreonylleucylisoleucylglutamylalanylglycylalanylaspartylalanylleucylglutamylleucylglycylglycylisoleucylprolylphenylalanylserylaspartylprolylleucelalanylaspartyglycylprolythreonylisoleucylglutamiylasparaginylalanylthreonylleucylarginylalanylphenylalanylalanylglycylvalyltheonylprolylalanylglutaminylcysteinylphenylalanygllutamylmethionylleucyalanylleucylisoleucylarginylglutaminyllysylhistidylprolylthreonylisoleucylpriIylisoleucylglycylleucylleucylmethionyltyrosylalanylasparaginylleucylvalyphenylalanylasparaginyllysylgyycylisoleucylaspartylglutamylphenylalanyltyrosylalanylgutaminyllcysteinylglutamyllysylvalylglycylavlylaspartylserylvalylleucylvalylalanylaspartylvalyprolylvalylglutaminylglutamyllserylalanyprolyphenylalanylarginylglutaminylalanylalanylleucylarginylhistidylasparaginylvaylalanylprolylisoleucylphenylalanylisoleucylcysteinylprolylprolylaspartylalanylaspartylaspartylaspartylleucylleucylarginyglutaminylisoleucylalanyylseryltyrosylglycylarginylglycyltyrosylthreonyltyrosylleucylleucylserylarginylalanylglycylvalythreonylglycylalanylglutamylasparaginylarginylanylalanylleucylprolylleucylaspaaginylhistidylleucylvaylalanyllysylleucyllysylglutamyltyrosylasaraginylglycylphenylalanylglycylisoleucylalanylprolylaspartylglutaminylvalyllysylalanylalanylisoleucylaspartylalanylalanyglycylalanylalanyglycylalanylisoleucylserylglycyserylalanylisoleucylbalyllsylisoleucylisoleucylglutamyyylglutaminylhistidylasparaginylisoleucylglutamylprolyglutamyllysylmethionylleucylalanylalanylleucyllysylvalylphenylalabylvalylglutaminlylprolylmethionyllysylalanylalanylthreonylarginylserine - "Scientific name for Trypthophan synthetase (that is a protien with 267 amino acids) (1 909 letters)

** - deoxyribonucleic acid (DNA) is alleged to have 207 000 letters, but has never been printed in full.