The third longest word ever published and the longest word in any major dictionary. it is also another word for the disease silicosis.
this is a case of Pneumonoultramicroscopicsilicovolcanoconiosis.
by p_p_m June 3, 2021
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The worlds longest word, and also the most obnoxious word to pronounce. Its basically the sequel to supercalifragilisticexpialidocious. People who are able to say this word are either scholars, doctors, or people who have too much spare time.
"You have been diagnosed with Pneumonoultramicroscopicsilicovolcanoconiosis." "Wait really? Pneumonoultramicroscopicsilicovolcanoconiosis?" "Yeah Pneumonoultramicroscopicsilicovolcanoconiosis." Apparently Pneumonoultramicroscopicsilicovolcanoconiosis, is a lung disease."
by Hans Hanson the Swede Meatball October 16, 2019
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A lung disease caused by breathing in certain particles. (Or a dumbfuck)
Don't be act like you have PNEUMONOULTRAMICROSCOPICSILICOVOLCANOCONIOSIS.
by Dude April 18, 2005
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A condition meeting the word's definition is normally called silicosis.
Teacher: Who here knows the longest English word in English?

James (Nerd): I DO, CAN I WRITE IT ON THE BOARD?

Teacher: Yes of course James.

*Writes Pneumonoultramicroscopicsilicovolcanoconiosis

Class: (What a nerd)

James: OKE I'M DONE

Teacher: Looks about right...
by John Travolta Jr. February 21, 2009
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