Pneumonoultramicroscopicsilicovolcanoconiosis

Don't be confused, firstly try to pronounciate the heading of the post

this is the name of the Longest disease
find out more at Wikipedia
and dont guess the disease as the longest word

The world's longest word is of 189,819 letters!
It is the chemical name of longest known protein, it's nickname is Tintin
See its full name Here

The longest word in English depends upon the definition of what constitutes an English word. English allows new words to be formed by construction; long words are coined; place names may be considered words; technical terms may be arbitrarily long. Length can be in terms of orthography and number of written letters or phonology and the number of phonemes.

	Word		Letters	Pros	Cons
	Methionylthreony...isoleucine		189,819	Chemical name of longest known protein	Technical; not in dictionary; disputed whether it is a word
	Lopado...pterygon		183	Longest word coined by a major author	Coined; not in dictionary; Greek transliteration
	Taumatawaiw...itanatahu		85	Longest officially recognized place name	Place name; not in a major dictionary
	Pneumoultramicro...niosis		45	Longest word in a major dictionary	Technical; coined to be the longest word
	Pseudopseu.....athyroidism		30	Longest non-coined word in a major dictionary	Technical
	Floccinaucinihilipilification		29	Longest nontechnical word	Coined
	Antidisestablishmentarianism		28	Longest non-coined and nontechnical word
	Honorificabilitudinitatibus		27	Longest word in Shakespeare's works

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