I don't think I can fit the word here because, it is 1,185 letters long. It is a chemical; Tobacco Mosaic Virus, Dalemense Strain.It's odd that they need a name that long for one thing. You can find it here. [url=http://www.fun-with-words.com/word_longest.html]
not a real word. longest word has 45 letters. some people also believe in this word that is over 180,000 letters long its a name for a protein titin. LIES! longest word is: Pneumonoultramicroscopicsilicovolcanoconiosis and the longest word ever to appear in a book(author made it up, but author is famous and respected) is LopadoÂtemachoÂselachoÂgaleoÂkranioÂleipsanoÂdrimÂhypoÂtrimmatoÂsilphio­araoÂmelitoÂkatakechyÂmenoÂkichlÂepiÂkossypho­hatto­eristerÂalektryonÂopteÂkephallioÂkigklo­eleioÂlagoioÂsiraioÂbapheÂtragano­terygon
I rather like the terms "anthropophagy"(gross, but fun to say), "Hippopotomonstrosesquipedaliophobia"(for the irony), and of course bibliobibuli, which is just too much fun to say. Also; try saying "I wish for an Irish wristwatch" five times fast.