Which is the biggest word as per Dictionary?

@naman95 (1554)
India
January 3, 2007 5:08am CST
Can anyone tell me?
4 responses
@smbilalshah (1316)
• Pakistan
3 Jan 07
ok here it goes pneumonoultramicroscopicsilicovoecanoconiosis phew that was long :)
• Pakistan
3 Jan 07
heres the second longest one: Hepaticocholangiochdecystenterterostomic both these terms are related to surgery now i deserve the best response dont i? lol! ;)
3 Jan 07
nice discussion.. at least we can get to know few longest words here...
@sankarcj (153)
• India
3 Jan 07
Vydhudiaqgamananiyantranaupadi is the big one
@nature (270)
• India
3 Jan 07
I think Antidisestablishmantarianism