Top Definition
a disease of the lungs due to the inhalation of volcanic ash and one long-ass fockin word.
Man 1:*cough*
Man 2: "Uh Oh, sounds like you've got a case of ultramicroscopicsilicovolcanoconiosis."
by darren smokie October 16, 2006
5 Words related to ultramicroscopicsilicovolcanoconiosis

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