pneumonoultramicroscopicsilicovolcanoconiosis
noun
pneu·mo·no·ul·tra·mi·cro·scop·ic·sil·i·co·vol·ca·no·co·ni·o·sis
| \ ˈn(y)ü-mə-(ˌ)nō-ˌəl-trə-ˌmī-krə-ˈskäp-ik-ˈsil-i-(ˌ)kō-väl-ˈkā-nō-ˌkō-nē-ˈō-səs
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plural pneumonoultramicroscopicsilicovolcanoconioses\ -ˌsēz
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Medical Definition of pneumonoultramicroscopicsilicovolcanoconiosis
: a pneumoconiosis caused by inhalation of very fine silicate or quartz dust