+**Pneumonoultramicroscopicsilicovolcanoconiosis** is a chronic [lung disease](/wiki/lung_disease), notably the longest word in the English language describing a medical condition. It results from inhaling extremely fine silica dust, often from volcanic ash. This condition is a severe form of [pneumoconiosis](/wiki/pneumoconiosis), causing inflammation and scarring.
+## See also
+- [Silicosis](/wiki/silicosis)
+- [Pneumoconiosis](/wiki/pneumoconiosis)
+- [Dust](/wiki/dust)
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