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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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Jul 23 Word of the Day
A tourist to sub-orbital or orbital space, through commercial space flight programs.
Jeff Bezos and Richard Branson alongside their crew became the first astrotourists, while visiting sub-orbital space in July 2021
by AxonL July 20, 2021
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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 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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4
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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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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