A lung disease caused by inhaling volcanic ash and/or dust. Can also be caused by inhaling very fine silica dust particles. Also, it is the longest English word to ever appear in a dictionary. It was first coined in 1931. The longest English word ever is the chemical name of titin ,the largest protein in the human body.
You won't have to use this word much, but if you have ever been near a volcano, and you start coughing like crazy, then you probably have pneumonoultramicroscopicsilicovolcanoconiosis.
by mkakapo February 14, 2014
Get the pneumonoultramicroscopicsilicovolcanoconiosismug. 
by Seen_potato_bean May 24, 2021
Get the pneumonoultramicroscopicsilicovolcanoconiosis is a wordmug. Pneumonoultramicroscopicsilicovolcanoconiosis & Supercalifragilisticexpialidocious are the longest words in the world! Let's forget titin
Oh my god! I love saying Pneumonoultramicroscopicsilicovolcanoconiosis & Supercalifragilisticexpialidocious
I'm getting real fast at typing that
I'm getting real fast at typing that
by BabbleBoy April 9, 2023
Get the Pneumonoultramicroscopicsilicovolcanoconiosis & Supercalifragilisticexpialidociousmug. Guy: stupid people who don't know how to spell pneumonoultramicroscopicsilicovolcanoconiosis
Guy 2: I'm not stupid because its the longest word in exsistence!
Guy: OK! But its true because the name of this "NEW WORD" is called that!
Guy 2: But it says you're not really stupid!
Guy: Oh yeah, I guess so... Hah?
Guy 2: I'm not stupid because its the longest word in exsistence!
Guy: OK! But its true because the name of this "NEW WORD" is called that!
Guy 2: But it says you're not really stupid!
Guy: Oh yeah, I guess so... Hah?
by SirenHeadPlayz12345 December 26, 2020
Get the stupid people who don't know how to spell pneumonoultramicroscopicsilicovolcanoconiosismug. noun. an obscure term ostensibly referring to a lung caused by silica dust. (taken from dictionary.com). This is also the longest word in the English language.
"Hey man, what's up?"
"I' found this condition, I'm trying to name it. I want it to be the longest word."
"How about pneumonoultramicroscopicsilicovolcanoconiosis?"
"That's pretty good."
"Anyways, what's the condition you're naming?"
"It's a lung disease."
"Alright, see you later man."
"I' found this condition, I'm trying to name it. I want it to be the longest word."
"How about pneumonoultramicroscopicsilicovolcanoconiosis?"
"That's pretty good."
"Anyways, what's the condition you're naming?"
"It's a lung disease."
"Alright, see you later man."
by commandobrandon September 20, 2020
Get the pneumonoultramicroscopicsilicovolcanoconiosismug. a word that refers to a lung disease contracted from the inhalation of very fine silica particles, specifically from a volcano; medically, it is the same as silicosis.
someone has pneumonoultramicroscopicsilicovolcanoconiosis
by coolkid292008 April 1, 2019
Get the pneumonoultramicroscopicsilicovolcanoconiosismug.