pneumonoultramicroscopicsilicovolcanokoniosis 

supposedly the longest word in a dictionary, an artificial word said to mean a lung disease caused by the inhalation of silica dust.

Man i have to go to the doctors i think i have pneumonoultramicroscopicsilicovolcanokoniosis from the mine shaft we were in.

pneumonoultramicroscopicsilicovolcanokoniosis by Ja (jay w/o the y) July 29, 2005

Pneumonoultramicroscopicsilicovolcanokoniosis 

Pneumonoultramicroscopicsilicovolcanokoniosis
also spelt with a "c" replacing the "k"

long ass word

a lung desease from inhaling silica dust

dude did you hear about dylan he got Pneumonoultramicroscopicsilicovolcanokoniosis

no way man!!

Pneumonoultramicroscopicsilicovolcanokoniosis by miss_jenna_13 April 6, 2009

pneumonoultramicroscopicsilicovolcanokoniosis 

A lung disease caused by the inhalation of very fine silicate or quartz dust, causing inflammation in the lungs

He had a lung disease called pneumonoultramicroscopicsilicovolcanokoniosis

pneumonoultramicroscopicsilicovolcanokoniosis by Charkravarti Rajagopalachari August 31, 2021

pneumonoultramicroscopicsilicovolcanoconiosis 

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"

pneumonoultramicroscopicsilicovolcanoconiosis by Fludence March 9, 2009

pneumonoultramicroscopicsilicovolcanoconiosis 

The wifi password

A: What's the wifi password?
B: It's on the back of the router.
The router: pneumonoultramicroscopicsilicovolcanoconiosis

pneumonoultramicroscopicsilicovolcanoconiosis by HeavenlyCheeseGod March 19, 2021

pneumonoultramicroscopicsilicovolcanoconiosis'd've'ly'yaint'nt'ed'ies's'y'es'nt'ed'ies's'y'es'nt't're'ing'able'ric'ive'al'nt'ne'm'll'ble'al 

the longest possible grammatically correct EVER.

man i really pneumonoultramicroscopicsilicovolcanoconiosis'd've'ly'yaint'nt'ed'ies's'y'es'nt'ed'ies's'y'es'nt't're'ing'able'ric'ive'al'nt'ne'm'll'ble'al ing hate this guy

pneumonoultramicroscopicsilicovolcanoconiosis'd've'ly'yaint'nt'ed'ies's'y'es'nt'ed'ies's'y'es'nt't're'ing'able'ric'ive'al'nt'ne'm'll'ble'al by easportstothegame June 16, 2020

pneumonoultramicroscopicsilicovolcanoconiosis 

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.

pneumonoultramicroscopicsilicovolcanoconiosis by Kyle Zager January 6, 2005