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Longest Word in the English language!!!! 1913 letters
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Longest Word in the English language!!!! 1913 letters
Posted in 
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Longest Word in the English language!!!! 1913 letters
Methionylglutaminy...serine is a scientific name for tryptophan synthetase, which is made up of 267 amino acids. It has appeared written down a number of times and has 1913 letters.

According to the Guinness Book of World Records, 18th edition, it is the longest chemical word for C1289H2051N343O375S8.

Lots of much larger proteins exist and their "scientific names" can be written in the same way. If nobody has actually bothered to write down such a scientific name, it is a fine metaphysical point whether the names should be said to exist, and if not, whether this particular string of letters representing a rather average, modest-sized protein is better qualified to be called a "word".

The full name, containing 1913 letters (excluding any dashes), is:

methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalanyl- 
glutaminylleucyllysylglutamylarginyllysylglutamylglycylalanylphenylalanyl- 
valylprolylphenylalanylvalylthreonylleucylglycylaspartylprolylglycyl- 
isoleucylglutamylglutaminylserylleucyllysylisoleucylaspartylthreonylleucyl- 
isoleucylglutamylalanylglycylalanylaspartylalanylleucylglutamylleucyl- 
glycylisoleucylprolylphenylalanylserylaspartylprolylleucylalanylaspartyl- 
glycylprolylthreonylisoleucylglutaminylasparaginylalanylthreonylleucyl- 
arginylalanylphenylalanylalanylalanylglycylvalylthreonylprolylalanyl- 
glutaminylcysteinylphenylalanylglutamylmethionylleucylalanylleucyl- 
isoleucylarginylglutaminyllysylhistidylprolylthreonylisoleucylprolyl- 
isoleucylglycylleucylleucylmethionyltyrosylalanylasparaginylleucylvalyl- 
phenylalanylasparaginyllysylglycylisoleucylaspartylglutamylphenylalanyl- 
tyrosylalanylglutaminylcysteinylglutamyllysylvalylglycylvalylaspartylseryl- 
valylleucylvalylalanylaspartylvalylprolylvalylglutaminylglutamylseryl- 
alanylprolylphenylalanylarginylglutaminylalanylalanylleucylarginylhistidyl- 
asparaginylvalylalanylprolylisoleucylphenylalanylisoleucylcysteinylprolyl- 
prolylaspartylalanylaspartylaspartylaspartylleucylleucylarginylglutaminyl- 
isoleucylalanylseryltyrosylglycylarginylglycyltyrosylthreonyltyrosylleucyl- 
leucylserylarginylalanylglycylvalylthreonylglycylalanylglutamylasparaginyl- 
arginylalanylalanylleucylprolylleucylasparaginylhistidylleucylvalylalanyl- 
lysylleucyllysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucyl- 
glutaminylglycylphenylalanylglycylisoleucylserylalanylprolylaspartyl- 
glutaminylvalyllysylalanylalanylisoleucylaspartylalanylglycylalanylalanyl- 
glycylalanylisoleucylserylglycylserylalanylisoleucylvalyllysylisoleucyl- 
isoleucylglutamylglutaminylhistidylasparaginylisoleucylglutamylprolyl- 
glutamyllysylmethionylleucylalanylalanylleucyllysylvalylphenylalanylvalyl- 
glutaminylprolylmethionyllysylalanylalanylthreonylarginylserine
45 Letters 

PNEUMONO­ULTRA­MICRO­SCOPIC­SILICO­VOLCANO­CONIOSIS = A lung disease caused by breathing in particles of siliceous volcanic dust.
This is the longest word in any English dictionary. However, it was coined by Everett Smith, the President of The National Puzzlers' League, in 1935 purely for the purpose of inventing a new "longest word". The Oxford English Dictionary described the word as factitious. Nevertheless it also appears in the Webster's, Random House, and Chambers dictionaries.

ThUnDeR
FlyOrDie Moderator
So we know what the longest word is, now try say it...:p
You spelled it wrong...

antidisestablishmentARIANism
y make the word so long its not like any1 is gonna go round sayins it is there:S
I know that chemical 1,913 letter word i have iut in a word file try these words:)

29 letters
Floccinaucinihilifapilifacation

34 letters
Supercalifragilisticexpiahdocious

And the 1,913 letter word!:o
methionylglutaminylarginyltyrosylglutamylserylleucyl phenylalanylalanylglutaminylleucyllysylglutamylarginyl lysylglutamylglycylalanylphenylalanylvalylprolylphenyl alanylvalylthreonylleucylglycylaspartylprolylglycylisol eucylglutamylglutaminylserylleucyllysylisoleucylaspartyl threonylleucylisoleucylglutamylalanylglycylalanylaspartyl alanylleucylglutamylleucylglycylisoleucylprolylphenyl alanylserylaspartylprolylleucylalanylaspartylglycylprolyl threonylisoleucylglutaminylasparaginylalanylthreonylleucyl arginylalanylphenylalanylalanylalanylglycylvalylthreonyl prolylalanylglutaminylcysteinylphenylalanylglutamyl methionylleucylalanylleucylisoleucylarginylglutaminyllysyl histidylprolylthreonylisoleucylprolylisoleucylglycylleucyl leucylmethionyltyrosylalanylasparaginylleucylvalylphenyl alanylasparaginyllysylglycylisoleucylaspartylglutamylphenyl alanyltyrosylalanylglutaminylcysteinylglutamyllysylvalyl glycylvalylaspartylserylvalylleucylvalylalanylaspartylvalyl prolylvalylglutaminylglutamylserylalanylprolylphenylalanyl arginylglutaminylalanylalanylleucylarginylhistidylasparaginyl valylalanylprolylisoleucylphenylalanylisoleucylcysteinyl prolylprolylaspartylalanylaspartylaspartylaspartylleucyl leucylarginylglutaminylisoleucylalanylseryltyrosylglycyl arginylglycyltyrosylthreonyltyrosylleucylleucylserylarginyl alanylglycylvalylthreonylglycylalanylglutamylasparaginyl arginylalanylalanylleucylprolylleucylasparaginylhistidyl leucylvalylalanyllysylleucyllysylglutamyltyrosylasparaginyl alanylalanylprolylprolylleucylglutaminylglycylphenylalanyl glycylisoleucylserylalanylprolylaspartylglutaminylvalyllysyl alanylalanylisoleucylaspartylalanylglycylalanylalanylglycyl alanylisoleucylserylglycylserylalanylisoleucylvalyllysylisol eucylisoleucylglutamylglutaminylhistidylasparaginylisoleucyl glutamylprolylglutamyllysylmethionylleucylalanylalanylleucyl lysylvalylphenylalanylvalylglutaminylprolylmethionyllysyl alanylalanylthreonylarginylserine
Gosh how long:p
Wow, I'm glad I don't have to write an essay on methionylglutaminylarginyltyrosylglutamylserylleucylphenylalanylalanyl- 
glutaminylleucyllysylglutamylarginyllysylglutamylglycylalanylphenylalanyl- 
valylprolylphenylalanylvalylthreonylleucylglycylaspartylprolylglycyl- 
isoleucylglutamylglutaminylserylleucyllysylisoleucylaspartylthreonylleucyl- 
isoleucylglutamylalanylglycylalanylaspartylalanylleucylglutamylleucyl- 
glycylisoleucylprolylphenylalanylserylaspartylprolylleucylalanylaspartyl- 
glycylprolylthreonylisoleucylglutaminylasparaginylalanylthreonylleucyl- 
arginylalanylphenylalanylalanylalanylglycylvalylthreonylprolylalanyl- 
glutaminylcysteinylphenylalanylglutamylmethionylleucylalanylleucyl- 
isoleucylarginylglutaminyllysylhistidylprolylthreonylisoleucylprolyl- 
isoleucylglycylleucylleucylmethionyltyrosylalanylasparaginylleucylvalyl- 
phenylalanylasparaginyllysylglycylisoleucylaspartylglutamylphenylalanyl- 
tyrosylalanylglutaminylcysteinylglutamyllysylvalylglycylvalylaspartylseryl- 
valylleucylvalylalanylaspartylvalylprolylvalylglutaminylglutamylseryl- 
alanylprolylphenylalanylarginylglutaminylalanylalanylleucylarginylhistidyl- 
asparaginylvalylalanylprolylisoleucylphenylalanylisoleucylcysteinylprolyl- 
prolylaspartylalanylaspartylaspartylaspartylleucylleucylarginylglutaminyl- 
isoleucylalanylseryltyrosylglycylarginylglycyltyrosylthreonyltyrosylleucyl- 
leucylserylarginylalanylglycylvalylthreonylglycylalanylglutamylasparaginyl- 
arginylalanylalanylleucylprolylleucylasparaginylhistidylleucylvalylalanyl- 
lysylleucyllysylglutamyltyrosylasparaginylalanylalanylprolylprolylleucyl- 
glutaminylglycylphenylalanylglycylisoleucylserylalanylprolylaspartyl- 
glutaminylvalyllysylalanylalanylisoleucylaspartylalanylglycylalanylalanyl- 
glycylalanylisoleucylserylglycylserylalanylisoleucylvalyllysylisoleucyl- 
isoleucylglutamylglutaminylhistidylasparaginylisoleucylglutamylprolyl- 
glutamyllysylmethionylleucylalanylalanylleucyllysylvalylphenylalanylvalyl- 
glutaminylprolylmethionyllysylalanylalanylthreonylarginylserine

I'm not surprised this word has only been made after the invention of computers and good old 
Ctrl + C/V
 ;\
_________
Regards,
[img=
http://img81.exs.cx/img81/2803/jamez.jpg
]
There is a longer word than that...its smiles....theres a mile between the s's...oh how i laughed when i first heard this...too bad its now so overused i wish to cut the throat of any1 who uses it...ow well

:)
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