What is the longest word in the English Dictionary?

Question

10 points for first correct answer

(think inside the box)

its a very simple word in the dictionary (6 letters)

Answer 1

smiles. thanks for the 10 points.

Answer 2

Pneumonoultramicroscopicsilicovolcanoconiosis is the longest word ever to appear in an English language dictionary.

Answer 3

Of course, it depends on the dictionary ;-). English (and many other languages) provide means of creating well-defined words of arbitrary length through the addition of prefixes and suffixes. Pneumonoultramicroscopicsilicovolcanoconiosis is one example of a word thus created. Dictionaries of jargon (especially in technical fields like chemistry and medicine) frequently have very long words.
ACETYL­SERYL­TYROSYL­SERY-
L­ISO­LEUCYL­THREONYL­S-
ERYL­PROLYL­SERYL­GLUTA-
MINYL­PHENYL­ALANYL­VALYL-
­PHENYL­ALANYL­LEUCYL­SER-
YL­SERYL­VALYL­TRYPTOPH-
YL­ALANYL­ASPARTYL­PROL-
YL­ISOLEUCYL­GLUTAMYL­LE-
UCYL­LEUCYL­ASPARAGINY-
L­VALYL­CYSTEINYL­THREONY-
L­SERYL­SERYL­LEUCYL­GLY-
CYL­ASPARAGINYL­GLUTAMI-
NYL­PHENYL­ALANYL­GLUT-
AMINYL­THREONYL­GLUTAMIN-
YL­GLUTAMINYL­ALANYL­ARG-
INYL­THREONYL­THREONYL-
­GLUTAMINYL­VALYL­GLUTAM-
INYL­GLUTAMINYL­PHENYL­A-
LANYL­SERYL­GLUTAMINYL-
­VALYL­TRYPTOPHYL­LYSYL­P-
ROLYL­PHENYL­ALANYL­PR-
OLYL­GLUTAMINYL­SERYL­THR-
EONYL­VALYL­ARGINYL­PHE-
NYL­ALANYL­PROLYL­GLYCYL-
­ASPARTYL­VALYL­TYROSYL­L-
YSYL­VALYL­TYROSYL­ARGI-
NYL­TYROSYL­ASPARAGINY-
L­ALANYL­VALYL­LEUCYL­ASP-
ARTYL­PROLYL­LEUCYL­ISOL-
EUCYL­THREONYL­ALANYL­L-
EUCYL­LEUCYL­GLYCYL­THR-
EONYL­PHENYL­ALANYL­ASP-
ARTYL­THREONYL­ARGINYL­-
ASPARAGINYL­ARGINYL­ISOL-
EUCYL­ISOLEUCYL­GLUTAM-
YL­VALYL­GLUTAMYL­ASPAR-
AGINYL­GLUTAMINYL­GLUTA-
MINYL­SERYL­PROLYL­THRE-
ONYL­THREONYL­ALANYL­G-
LUTAMYL­THREONYL­LEUCY-
L­ASPARTYL­ALANYL­THREO-
NYL­ARGINYL­ARGINYL­VALY-
L­ASPARTYL­ASPARTYL­ALA-
NYL­THREONYL­VALYL­ALAN-
YL­ISOLEUCYL­ARGINYL­SER-
YL­ALANYL­ASPARAGINYL­IS-
OLEUCYL­ASPARAGINYL­LE-
UCYL­VALYL­ASPARAGINYL-
­GLUTAMYL­LEUCYL­VALYL­AR-
GINYL­GLYCYL­THREONYL-
­GLYCYL­LEUCYL­TYROSYL­A-
SPARAGINYL­GLUTAMINYL­A-
SPARAGINYL­THREONYL­PH-
ENYL­ALANYL­GLUTAMYL­SE-
RYL­METHIONYL­SERYL­GLYC-
YL­LEUCYL­VALYL­TRYPTOP-
HYL­THREONYL­SERYL­ALAN-
YL­PROLYL­ALANYL­SERINE
is one such word that has a definite meaning and has appeared in English dictionaries aimed at chemists. However, even longer words may have appeared in other technical dictionaries.

Answer 4

Pneumonoultramicroscopicsilicovolcanoconiosis..
it has 45 letters..

Answer 5

Pneumonoultra-
microscopicsilicovolcano-
coniosis

(without the hyphens)

Answer 6

antidisestablishmentarianism

Answer 7

supercalifragilisticexpialidocious

Answer 8

supercalifragilisticespialidoisus or however its spelled lol wait wat do u mean it isnt in the dictionary!?