Before today, I thought that "antidisestablishmentarianism" was the longest word in the English language, tipping the scales at 28 letters.
Today, I found out the word that that "honor" goes to a 45-letter word describing, "an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language." So saith Dictionary.com.
So just like in elementary school, let's all practice spelling it 10 times in a row:
There will be a test on this, so study hard!