| Noun | 1. | pneumoconiosis - chronic respiratory disease caused by inhaling metallic or mineral particles respiratory disease, respiratory disorder, respiratory illness - a disease affecting the respiratory system anthracosis, black lung, black lung disease, coal miner's lung - lung disease caused by inhaling coal dust asbestosis - lung disease caused by inhaling asbestos particles siderosis - fibrosis of the lung caused by iron dust; occurs among welders and other metal workers silicosis - a lung disease caused by inhaling particles of silica or quartz or slate fibrosis - development of excess fibrous connective tissue in an organ |