Is commonly considered to be the longest word in the english language, however the longest word is actually the scientific name for titin. Both of these words are very medical/scientific so you are unlikely to find them in a language dictionary - especially not the scientific name for titin because it is One hundred and eighty nine thousand, eight hundred and nineteen (189'819) letters long.
Pneumonoultramicroscopicsilicovolcanoconiosis is a lung disease caused by inhaling too much volcanic ash, or other rock containing similar compounds.
"The miner has been diagnosed with black lung, or pneumonoultramicroscopicsilicovolcanoconiosis"
"Wow, that's a long word"
by Stay Alive if Possible June 21, 2020
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A long ass word that by the time you figure out how to pronounce it or what it means your friend would’ve died already. Oh and by the way it’s a lung disease from volcanic ash or silica dust.
Person 1: My friend died from pneumonoultramicroscopicsilicovolcanoconiosis yesterday.
Person 2: Whats that?
Person 1: Dunno, he said that he had it and then died before I figure out what it was and call for help.
Person 2: Oh…
by Kid from ZA August 28, 2022
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pneumonoultramicroscopicsilicovolcanoconiosis Otherwise pronounced as "new-mow-no-ull-trah-my-kro-sko-pik-si-li-ko-vol-kay-no-ko-ny-oh-sis" is a lung disease caused by inhaling a very fine dust / ash
Person 1: "Hey, did you hear about bob?"

Person 2: "yeah, he got pneumonoultramicroscopicsilicovolcanoconiosis. probably by sniffing all that volcano ash"
by schmingitlover February 07, 2025
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Disease caused by inhaling very microscopic pieces of dust or sand or shit like that
Person 1: "Don't breathe that in, you'll get Pneumonoultramicroscopicsilicovolcanoconiosis."
Person 2: "How the fuck did you just say that in one go?"
by TheBetterRUTH December 04, 2023
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