Top Definition
Lung disease caused from the inhalation of a fine silt found in volcanoes. This word is no longer recognized as a "legitimate" word.
PNEUMONO­ULTRA­MICRO­SCOPIC­SILICO­VOLCA, you don't want that.
by The Riot July 13, 2008
5 Words related to PNEUMONO­ULTRA­MICRO­SCOPIC­SILICO­VOLCA

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×