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5 results for: pneumonoultramicroscopicsilicovolcanoconiosis

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Dictionary.com Unabridged (v 1.1)Cite This Source
pneu·mo·no·ul·tra·mi·cro·scop·ic·sil·i·co·vol·ca·no·co·ni·o·sis    Audio Help   [noo-muh-noh-uhl-truh-mahy-kruh-skop-ik-sil-i-koh-vol-key-noh-koh-nee-oh-sis, nyoo-] Pronunciation Key
–noun
an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.
[Origin: < NL; see pneumono-, ultramicroscopic, silica, volcano, (pneumono)coniosis]
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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