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An inflammation of the lungs caused by microscopic grains of certain types of rock.

*NOTE* This word was actually coined in a deliberate attempt to be the longest word in the english language, although you would be hard-pressed to find it in the language dictionary as it is a medical/scientific term.
"Dude, now that I've learned how to spell antidisestablishmentarianism, what am I going to do to make people think I'm smart?"

"Quiet man, I'm trying to name this condition we discovered today. Its an inflammation of the lungs caused by microscopic grains of certain types of rock."

"Hey, I smell opportunity! How long could we make this word?"

"Pretty long...I suppose we could stretch it to pneumonoultramicroscopicsilicovolcanoconiosis"
by Fludence March 09, 2009
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May 14 Word of the Day
Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy
Person A: Man, that nutcase Martin Bryant guy shot 35 people in Tasmania!

Person B: No, he wasn't a nutcase, that was just a psyop so the government could have an excuse to ban guns.
by Mystikan April 11, 2006
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2
1. A disease gotten from inhalation of diminative particles of silica or quartz.
Pneumono - Lung
Ultra Microscopic - Very small/fine
silico volcano - igneous, silica
coniosis - disease
; Black Lung
In the mid 1880's, miners would get pneumonoultramicroscopicsilicovolcanoconiosis.
by Kyle Zager January 06, 2005
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3
A: What's the wifi password?
B: It's on the back of the router.
The router: pneumonoultramicroscopicsilicovolcanoconiosis
by HeavenlyCheeseGod March 19, 2021
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4
A form of silicosis caused by breathing in siliceous volcanic dust.

Exceeded electrophotomicrographically as the longest recognized word in English.
Me: *COUGH*
You: Dude, stop smoking.
Me: I don't smoke.
You: Yes, you do.
Me: No, I have pneumonoultramicroscopicsilicovolcanoconiosis
by OfEternity June 26, 2005
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5
It’s pronounced nju mə(ʊ)nəʊˌʌltrəˌmʌɪkrə(ʊ)ˈskɒpɪkˌsɪlɪkəʊvɒlˌkeɪnəʊˌkəʊnɪˈəʊsɪs not that that is any great help but, at 45 letters, it is at the time of writing, the longest word to be found in an English dictionary. As for what it is, it’s a lung disease caused by inhaling dust and ash from volcanoes, so it’s a variant of silicosis and pneumoconiosis. It is said to be a made-up word intended simply to be the longest word in the English language, but it isn’t, that title goes to the chemical name for Titin which is a type of protein. In English this word has 189,819 letters and would take three-and-a-half hours to pronounce.
If you thought Pneumonoultramicroscopicsilicovolcanoconiosis was bad, let’s see you pronounce the chemical name of titin.
by AKACroatalin April 08, 2019
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6
A disease of the lungs caused by the habitual inhalation of silica dusts, characterized by massive fibrosis, shortness of breath in the lungs, and violent sneezing.
She has been diagnosed with pneumonoultramicroscopicsilicovolcanoconiosis.
by Leonardo Sidis 424 August 16, 2005
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