Longest Word in English Dictionary?

The longest word in the English Dictionary is 45 letters long. Hang on it is going to take me a minute to spell it…OK its pneumonoultramicroscopicsilicovolcanoconiosis. There are 2 other words that are longer, but they are not in the dictionary. One of them is 189,819 letters long and I’m not going to type that one out. It is the chemical name for titin. That is crazy, huh? Oh, by the way the word longest word is a lung infection caused by inhaling small dust particles. For more information see here: