The longest word in the English language is the scientific name for Typhoid desease coming in at a wopping 1845 letters. Many other languages beat us however. The longest word in the world is in German and has (I think) 21965 (or 21964) letters! Japan then wins the record for Smallest longest letter with the biggest japanese word being a feeble 204 letters long. What does it mean? Typhoid disease! Of course! Try and say any of those in one go :-s

PNEUMONOULTRAMICROSCOPICSILICOVOLCANOCONIOSIS

This word is forty-five letters.
It is a lung disease caused by breathing in certain particles

in the dictonary

Methionylglutaminylarginyltyrosylglutamylserylleucylphen-
ylalanylalanylglutaminylleucyllysylglutamylarginyllysylgluta-
mylglysylalanylphenylalanylvalylprolylphenylalanylyalylthre-
onylleucylglcycylaspartylprolylglicylisoleucyglutamylgluta-
minlserylleucyllysylisoleucylaspartylthreonylleucylisoleu-
cylglutamylalanylglyclyalanylaspartylalanylleucyglutamylle-
ucylgluycylisoleucylproluylphenylalanyserylaspartyprolylleu-
celalanylaspartylglycylprolylthreonylisolleucyglutaminylaspa-
raginylalanythreonylleucylarginylalanylphenylalanylalanylal-
anylglycylvalylthreonylprolylalanylglutaminylcysteinylphen-
ylalanylglglutamylmethionylleucyalanylleucylisoleucylarginyl-
glutaminyllysylhistidylprolyuthreonylisoleucylprolylisoleuc-
ylglycylleucylleucylmethionyltyrosylalanylasbaraginylleucyl-
valylphenylalanylsparaginyyllysylglycylisoleucylaspartylglut-
amylphenylalanylyltyrosylalanylglutaminylcysteinylglutamyll-
ysylvalylglycylvalylspartylserylvalylleucylvallalanylaspart-
ylvalylprolylvalvlglutaminylglutamylserylalanylprolylpheny-
lalalrginylglutaminylalanylalanylleucylarginylhistidylasp-
araginylvalylalalprolylisoleucylphenylalanylisoleucylcystei-
nylprolyprolylaspartylalanylaspartylaspartyspartyleucylle-
ucylarginylglutaminylisoleucylalanylseryltyroslglycylargin-
ylglycyltyrosylthreonyltyrosylleucylleucylserylarginlalanyl-
glycylvalylthreonylglycylalanylglutamylasparaginylarginyla-
nylalanylleucylprolylleucylaspaaginylhistidylleucylvalylalan-
yllysylleucyllysylglutamyltyrosylasparagimylalanylalanypro-
lylprolylleucylglutaminylglycylphenlalanylglycylisoleyucyls-
erylalanylprolylaspartylglutaminylvalyllysylalanylalanylisol-
eucylalspartylalanylglycylalanylalanylglycylalanylasoleucylse-
rylglycylserylalanylisoleucylbalyllysylisoleucylisoleucylgluta-
mylglutaminylhistidylasparaginylisoleucylglutamylpronylglu-0
tamyllysylmethionylluecylalanylalanyoeucyllysylvalylpheny-
lalanylvalylglutamilylprolylmethionyllysylalanylalanylthreo-
nylarginylserine.

This word is a Tryptophan synthetase A protein, an enzyme that has 267 amino acids, and makes a record of 1,909 letters. It is the term for the formula C1289H2051N343O375S8.

Ultrasupermicroscopicsilvacanacorniopis 39 letters it is the scientific term for miners lung

'pneumonoultramicroscopicsilicovolcanoconiosis' wot? its a made up word. longest word is antidisestablishmentarianism. actually means something proper.
polymorphonucleargranulocyte, there's another one for u but dunno whether it passes (scientific)

i RECENTLY CAME ACROSS A WORD.... GRANTED ITS THE NAME OF A CERTAIN CHEMICAL, BUT NONETHELESS, ITS BEEN PRINTED IN SOME MEDICAL JOURNALS.....

DRUM ROLL

Methionylglutaminylarginyltyrosylglutamylserylleucylphen-
ylalanylalanylglutaminylleucyllysylglutamylarginyllysylgluta-
mylglysylalanylphenylalanylvalylprolylphenylalanylyalylthre-
onylleucylglcycylaspartylprolylglicylisoleucyglutamylgluta-
minlserylleucyllysylisoleucylaspartylthreonylleucylisoleu-
cylglutamylalanylglyclyalanylaspartylalanylleucyglutamylle-
ucylgluycylisoleucylproluylphenylalanyserylaspartyprolylleu-
celalanylaspartylglycylprolylthreonylisolleucyglutaminylaspa-
raginylalanythreonylleucylarginylalanylphenylalanylalanylal-
anylglycylvalylthreonylprolylalanylglutaminylcysteinylphen-
ylalanylglglutamylmethionylleucyalanylleucylisoleucylarginyl-
glutaminyllysylhistidylprolyuthreonylisoleucylprolylisoleuc-
ylglycylleucylleucylmethionyltyrosylalanylasbaraginylleucyl-
valylphenylalanylsparaginyyllysylglycylisoleucylaspartylglut-
amylphenylalanylyltyrosylalanylglutaminylcysteinylglutamyll-
ysylvalylglycylvalylspartylserylvalylleucylvallalanylaspart-
ylvalylprolylvalvlglutaminylglutamylserylalanylprolylpheny-
lalalrginylglutaminylalanylalanylleucylarginylhistidylasp-
araginylvalylalalprolylisoleucylphenylalanylisoleucylcystei-
nylprolyprolylaspartylalanylaspartylaspartyspartyleucylle-
ucylarginylglutaminylisoleucylalanylseryltyroslglycylargin-
ylglycyltyrosylthreonyltyrosylleucylleucylserylarginlalanyl-
glycylvalylthreonylglycylalanylglutamylasparaginylarginyla-
nylalanylleucylprolylleucylaspaaginylhistidylleucylvalylalan-
yllysylleucyllysylglutamyltyrosylasparagimylalanylalanypro-
lylprolylleucylglutaminylglycylphenlalanylglycylisoleyucyls-
erylalanylprolylaspartylglutaminylvalyllysylalanylalanylisol-
eucylalspartylalanylglycylalanylalanylglycylalanylasoleucylse-
rylglycylserylalanylisoleucylbalyllysylisoleucylisoleucylgluta-
mylglutaminylhistidylasparaginylisoleucylglutamylpronylglu-0
tamyllysylmethionylluecylalanylalanyoeucyllysylvalylpheny-
lalanylvalylglutamilylprolylmethionyllysylalanylalanylthreo-
nylarginylserine.

This word is a "Tryptophan synthetase A protein", an enzyme that has 267 amino acids, and makes a record of 1,909 letters. It is the term for the formula C-1289 H-2051 N-343 O-375 S8.

the longest word in the English language is deoxyribonuclaecacid (DNA) which has 207,000 letters and has never been printed in full.

Actually, the true longest word in the world is pneumonoultramicroscopicsilicovolcanoconiosis. It is the scientific name for coal miner's disease.

This is the end. The longest word is
methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalanylglutaminylleucyllysylgl
utamylarginyllysylglutamylglycylalanyphenylalanylvalylprolylphenylalanylvalylthreonylleucylgl
ycylaspartylprolylglycylisoleucylglutamylglutaminylserylleucyllysylisoleucylaspartylthreonylleu
cylisoleucylglutamylalanylglycylalanylaspartylalanylleucylglutamylleucylglycylisoleucylprolylph
enylalanylserylaspartylprolylleucylalanylaspartylglycylprolylthreonylisoleucylglutaminylaspfrag
inylalanylthreonylleucylarginylalanylphenylalanylalanylalanylglycylvalylthreonylprolylalanylglu
taminylcysteinylphenylalanylglutamylmethionylleucylalanylleucylisoleucylarginylglutaminyllycy
lhistidylprolylthreonylisoleucylprolylisoleucylglycylleucylleucylmethionyltyrosylalanylasparagin
ylleucylvalylphenylalanylasparaginyllysylglycylisoleucylaspartylglutamylphenylalanyltyrosylala
nylglutaminylcysteinylglutamyllysylvalylglycylvalylaspartylserylvalylleucylvalylalanylaspartylv
alylprolylvalylglutaminylglutamylserylalanylprolylphenylalanylarginylglutaminylalanylalanylleu
cylarginylhistidylasparaginylvalylalanylprolylisoleucylphenylalanylisoleucylcysteinylprolylprolyl
aspartylalanylaspartylaspartylaspartylleucylleucylarginylglutaminylisoleucylalanylseryltyrosylg
lycylarginylglycyltyrosylthreonyltyrosylleucylleucylserylarginylalanylglycylvalylthreonylglycylal
anylglutamylasparaginylarginylalanylalanylleucylprolylleucylasparaginylhistidylleucylvalylalan
yllysylleucyllysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucylglutaminylglycylphen
ylalanylglycylisoleucylserylalanylprolylaspartylglutaminylvalyllysylalanylalanylisoleucylasparty
lalanylglycylalanylalanylglycylalanylisoleucylserylglycylserylalanylisoleucylvalyllysylisoleucylis
oleucylglutamylglutaminylhistidylasparaginylisoleucylglutamylprolylglutamyllysylmethionylleuc
ylalanylalanylleucyllysylvalylphenylalanylvalylglutaminylprolylmethionyllysylalanylalanylthreo
nylarginylserine. It came out on my Word document to be 1912 letters long. It is the longest word in the ENGLISH language. Period. Done. NO MAS.

ACETYL­SERYL­TYROSYL­SERYL­ISO­LEUCYL­THREONYL­SERYL­PROLYL­SERYL­GLUTAMINYL­PHENYL­
ALANYL­VALYL­PHENYL­ALANYL­LEUCYL­SERYL­SERYL­VALYL­TRYPTOPHYL­ALANYL­ASPARTYL­PROLYL­
ISOLEUCYL­GLUTAMYL­LEUCYL­LEUCYL­ASPARAGINYL­VALYL­CYSTEINYL­THREONYL­SERYL­SERYL­
LEUCYL­GLYCYL­ASPARAGINYL­GLUTAMINYL­PHENYL­ALANYL­GLUTAMINYL­THREONYL­GLUTAMINYL­
GLUTAMINYL­ALANYL­ARGINYL­THREONYL­THREONYL­GLUTAMINYL­VALYL­GLUTAMINYL­
GLUTAMINYL­PHENYL­ALANYL­SERYL­GLUTAMINYL­VALYL­TRYPTOPHYL­LYSYL­PROLYL­PHENYL­
ALANYL­PROLYL­GLUTAMINYL­SERYL­THREONYL­VALYL­ARGINYL­PHENYL­ALANYL­PROLYL­GLYCYL­
ASPARTYL­VALYL­TYROSYL­LYSYL­VALYL­TYROSYL­ARGINYL­TYROSYL­ASPARAGINYL­ALANYL­VALYL­
LEUCYL­ASPARTYL­PROLYL­LEUCYL­ISOLEUCYL­THREONYL­ALANYL­LEUCYL­LEUCYL­GLYCYL­
THREONYL­PHENYL­ALANYL­ASPARTYL­THREONYL­ARGINYL­ASPARAGINYL­ARGINYL­ISOLEUCYL­
ISOLEUCYL­GLUTAMYL­VALYL­GLUTAMYL­ASPARAGINYL­GLUTAMINYL­GLUTAMINYL­SERYL­PROLYL­
THREONYL­THREONYL­ALANYL­GLUTAMYL­THREONYL­LEUCYL­ASPARTYL­ALANYL­THREONYL­
ARGINYL­ARGINYL­VALYL­ASPARTYL­ASPARTYL­ALANYL­THREONYL­VALYL­ALANYL­ISOLEUCYL­
ARGINYL­SERYL­ALANYL­ASPARAGINYL­ISOLEUCYL­ASPARAGINYL­LEUCYL­VALYL­ASPARAGINYL­
GLUTAMYL­LEUCYL­VALYL­ARGINYL­GLYCYL­THREONYL­GLYCYL­LEUCYL­TYROSYL­ASPARAGINYL­
GLUTAMINYL­ASPARAGINYL­THREONYL­PHENYL­ALANYL­GLUTAMYL­SERYL­METHIONYL­SERYL­
GLYCYL­LEUCYL­VALYL­TRYPTOPHYL­THREONYL­SERYL­ALANYL­PROLYL­ALANYL­SERINE
= Tobacco Mosaic Virus, Dahlemense Strain.