A

David

Darling

silicosis

A form of pneumoconiosis, or fibrotic lung disease, in which long-standing inhalation of fine silica dusts in mining causes a progressive reduction in the functional capacity of the lungs. The normally thin-walled alveolus and small bronchioles become thickened with fibrous tissue and the lungs lose their elasticity. Characteristic X-ray appearances and changes in lung function appear.