pneumoconiosisPronunciation: /ˌnjuːmə(ʊ)kəʊnɪˈəʊsɪs/Definition of pneumoconiosis noun [mass noun] Medicine a disease of the lungs due to inhalation of dust, characterized by inflammation, coughing, and fibrosis. Origin: late 19th century: from pneumo- 'relating to the lungs' + Greek konis 'dust' + -osispneumoconiosis in other Oxford dictionaries Definition of pneumoconiosis in the US English dictionary
