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. It is also the longest word in the English langurage
You would rather cough up bloodyphlegm wads than to have to try to pronounce the condition that causes causes this, Pneumonoultramicroscopicsilicovolcanoconiosis.
A lung disease caused by inhaling ash, small sand, and other small dust.
Child : Mother, I learned a new word at school today!
Mother : Really? What is it?
Child : pneumonoultramicroscopicsilicovolcanoconiosis
Mother : *Shrieks in fear**starts hyperventilating*
Child: Whats wrong? do you have hippopotomonstrosesquippedaliophobia?
Mother : Ahh! make it stop! Were all gonna Dieee!*Faints in fear*
Child: mom?