Pneumonoultramicroscopicsilicovolcanoconiosis

Have you ever wondered what the longest word in the English language is? Well tada! There ^ it is in all its 45-letter splendor above. The meaning of the word is referring to a disease of the lungs caused by inhaling very fine dust. But if you want to see the longest word in English that no one uses outside the science laboratory there is a 1,185 letter word that describes a protein virus.
Don’t say I never taught you anything amazingly supercalafrajalisticexpealadocious !