Noun. pneumonoultramicroscopicsilicovolcanoconiosis (uncountable) (nonce word) is A disease of the lungs, allegedly caused by inhaling microscopic silicate particles originating from the eruption of a volcano.
1. I had trouble breathing and my doctor diagnosed me with pneumonoultramicroscopicsilicovolcanoconiosis.
2. One word that almost beat him, though, is pneumonoultramicroscopicsilicovolcanoconiosis which means a form of pneumoconiosis caused by very fine silicate or quartz dust.
3. One word that almost beat him, though, is pneumonoultramicroscopicsilicovolcanoconiosis which means a form of pneumoconiosis caused by very fine silicate or quartz dust.
4. It's either pneumonoultramicroscopicsilicovolcanoconiosis or a bad cough.